Books

Reports

1.	Report on the session “Hydrothermal Systems beneath Volcanoes” in Japan Geoscience Union Meeting 2021 Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.43, No.3, pp.95-97, July, 2021.
2.	Report on the session “Hydrothermal Systems beneath Volcanoes” in Japan Geoscience Union Meeting 2020 Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.42, No.4, pp.89-92, October, 2020.
3.	Report on the session “Hydrothermal Systems beneath Volcanoes” in Japan Geoscience Union Meeting 2019 Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.41, No.3, pp.71-73, July, 2019.
4.	Report on the session “Hydrothermal Systems beneath Volcanoes” in Japan Geoscience Union Meeting 2018 Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.40, No.3, pp.156-158, July, 2018.
5.	Report on the session “Hydrothermal Systems beneath Volcanoes” in Japan Geoscience Union Meeting 2017 Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.39, No.3, pp.123-125, July, 2017.
6.	Report on the session “Hydrothermal Systems beneath Volcanoes” in Japan Geoscience Union Meeting 2016 Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.38, No.3, pp.68-70, July, 2016.
7.	JICA “Intensive Training for Geothermal Resource Engineering” starts up Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.38, No.3, pp.67-68, July, 2016.
8.	Report of WGC2015, Part 2 Kasumi YASUKAWA, Toshihiro UCHIDA, Takehiro KOSEKI, Hanae SAISHU, Daisuke FUKUDA, Koji MATSUDA, Norio YANAGISAWA, Yasuhiro FUJIMITSU, et Journal of the Geothermal Research Society of Japan, Vol.37, No.4, pp.153-176, October, 2015.
9.	Report on the session “Hydrothermal Systems beneath Volcanoes” in Japan Geoscience Union Meeting 2015 Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.37, No.3, pp.73-74, July, 2015.
10.	Report on the session “Hydrothermal Systems beneath Volcanoes” in Japan Geoscience Union Meeting 2014 Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.36, No.3, pp.105-108, July, 2014.
11.	Book Review “Design in Nature” Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.36, No.1, p.52, January, 2014.
12.	Report on IAVCEI 2013 Scientific Assembly in Kagoshima Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.35, No.4, pp.131-134, October, 2013.
13.	Participating in an APEC Geothermal Workshop Noriyoshi TSUCHIYA and Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.35, No.3, pp.102-104, July, 2013.
14.	Report on the session “Hydrothermal Systems beneath Volcanoes” in Japan Geoscience Union Meeting 2013 Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.35, No.3, pp.99-101, July, 2013.
15.	Report on the session “Hydrothermal Systems beneath Volcanoes” in Japan Geoscience Union Meeting 2012 Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.34, No.3, pp.117-119, July, 2012.
16.	Book Review "FREE -the future of a radical price-" Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.33, No.3, p.142, July, 2011.
17.	Report on the session “Hydrothermal Systems beneath Volcanoes” in Japan Geoscience Union Meeting 2011 Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.33, No.3, pp.105-108, July, 2011.
18.	Report on 2010 annual meeting of the Geothermal Research Society of Japan in Tsukuba Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.33, No.1, pp.7-8, January, 2011.
19.	Obituary Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.33, No.1, p.3, January, 2011.
20.	Special Report “Repots on World Geothermal Congress 2010” Toshihiro UCHIDA, Kasumi YASUKAWA, Noriyoshi TSUCHIYA, Ryuichi ITOI, Takumi SAKABE, Hiroshi ASANUMA, Sachio EHARA, Masaho ADACHI, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Hirofumi MURAOKA, Hideki MIZUNAGA, Masato WATANABE, Daisuke FUKUDA, Hiroyuki TOKITA, Norio YANAGISAWA, Shigeto YAMADA, Tomoyuki OHTANI, Hikari FUJII, Hideshi KAIEDA, Toshiaki TANAKA, Akira UEDA, Shuji AJIMA and Kazuyoshi OSADA Journal of the Geothermal Resources Society of Japan, Vol. 32, No. 3, pp.129-183, July, 2010.
21.	Report on the session “Hydrothermal Systems beneath Volcanoes” in Japan Geoscience Meeting 2010 Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.32, No.3, pp.120-121, July, 2010.
22.	Report on 2009 annual meeting of the Geothermal Research Society of Japan in Kyoto Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.32, No.1, pp.7-9, January, 2010.
23.	Report on the session “Hydrothermal Systems beneath Volcanoes” in Japan Geoscience Meeting 2009 Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.31, No.3, pp.149-151, July, 2009.
24.	Report on “30th New Zealand Geothermal Workshop” and “NZGA Seminar” Yasuhiro FUJIMITSU, Sachio EHARA, Miyuki YOSHIKAWA, Toshiyuki TOSHA, Norio YANAGISAWA and Sachihiro TAGUCHI Journal of the Geothermal Resources Society of Japan, Vol. 31, No. 1, pp.12-16, January, 2009.
25.	Report on the session “Hydrothermal Systems beneath Volcanoes” in Japan Geoscience Meeting 2008 Yasuhiro FUJIMITSU Journal of the Geothermal Research Society of Japan, Vol.30, No.3, pp.158-159, July, 2008.
26.	Report from Geothermal Front Line -Department of Earth Resources Engineering, Kyushu University- Yasuhiro FUJIMITSU Journal of Geothermal Energy Research & Development, Vol.32, Nos.1&2, pp.65-74.
27.	Development of an Integrated Airborne Geophysical Survey System Using Helicopter -Applications to Aso and Bandai Volcanoes and Applicability to natural disaster mitigation- Hisatoshi ITO, Hideshi KAIEDA, Kenichiro KUSUNOKI, Toru MOGI, Yoshikazu TANAKA, Yasuhiro FUJIMITSU and Youichi YUUKI Civil Engineering Research Laboratory Report, N06012.
28.	Development of an Integrated Airborne Geophysical Survey System Using Helicopter -Improvement of Airborne Survey Methods of Electromagnetic, Magnetic, Gamma-ray Spectrometry, and Infrared Image- Hisatoshi ITO, Hideshi KAIEDA, Kenichiro KUSUNOKI, Toru MOGI, Yoshikazu TANAKA, Yasuhiro FUJIMITSU and Youichi YUUKI Civil Engineering Research Laboratory Report, N06011.
29.	Report on “28th New Zealand Geothermal Workshop” Yasuhiro FUJIMITSU Journal of the Geothermal Resources Society of Japan, Vol. 29, No. 1, pp.9-11.
30.	Grappling of Earth Resources Engineering with“2005 Fukuoka Prefecture Western Offshore Earthquakes” Yasuhiro FUJIMITSU Alumni Bulletin of Department of Mining and Metallurgy, No. 66, pp.3-5.
31.	Report on “27th New Zealand Geothermal Workshop” Yasuhiro FUJIMITSU Journal of the Geothermal Resources Society of Japan, Vol. 28, No. 1, pp.49-50.
32.	Book Review: Volcano -Challenge to Eruption-, Series of National Institute of Advanced Industrial Science and Technology Journal of Geothermal Research Society of Japan, Vol.26, 218-219..
33.	Development of Simulation Method for Hot Dry Rock Reservoir Estimation, part 2 -Application of GEOTH3D Code to the Ogachi HDR Site- Takeshi YAMAMOTO, Koichi KITANO, Hideshi KAIEDA, Yasuhiro FUJIMITSU and Nobukazu TANAKA Abiko Research Laboratory Report, U97093.
34.	Development of Simulation Method for Hot Dry Rock Reservoir Estimation, part 1 -Development of GEOTH3D Code- Takeshi YAMAMOTO, Koichi KITANO, Yasuhiro FUJIMITSU and Nobukazu TANAKA Abiko Research Laboratory Report, U97092.
35.	Development of Three-dimensional Analysis for Resistivity Method Yasuhiro FUJIMITSU and Koichi SUZUKI Abiko Research Laboratory Report, U93045.
36.	Development of Fracture Evaluation Techniques for HDR Geothermal Power -Measuring System of the mise-a-la-masse Method and Applying it to the Fracture Evaluation at Ogachi Hideshi KAIEDA, Sadao SAKUNAGA, Koichi SUZUKI, Yasuhiro FUJIMITSU and Sadanari HIGASHI Abiko Research Laboratory Report, U93011.
37.	Application of Radar Geotomography Using the Borehole Radar System to Geological Property Survey Koichi SUZUKI, Yasuhiro FUJIMITSU, Kazuo TANABE and Yuji AMANO Abiko Research Laboratory Report, U92059.
38.	Application of Seismic and Resistivity Geotomographies to Survey of Geological Property Koichi SUZUKI, Yasuhiro FUJIMITSU, Ken-ichiro KUSUNOKI and Mutsumi MOTOJIMA Abiko Research Laboratory Report, U92028.
39.	A Fault Survey under the Alluvial Deposits -(3) Applicability of Geophysical Surveys to the Umehara Fault- Yasuhiro FUJIMITSU, Koichi SUZUKI, Ken-ichiro KUSUNOKI, Mutsumi MOTOJIMA and Kenji SONE Abiko Research Laboratory Report, U92002.
40.	Application of TDEM (Time Domain Electromagnetic) Method for Geothermal Survey -Exploration at Sakurajima and Kuju Volcanoes- Koichi SUZUKI, Ken-ichiro KUSUNOKI, Yasuhiro FUJIMITSU, Susumu NISHIMURA and Toru MOGI Abiko Research Laboratory Report, U989106.
41.	Application of CSAMT Method to Geological Survey of Hydroelectric Power Site -Simplified Method of Nearfield and Topographical Correction- Mutsumi MOTOJIMA, Ken-ichiro KUSUNOKI, Koichi SUZUKI and Yasuhiro FUJIMITSU Abiko Research Laboratory Report, U91035.
42.	A Fault Survey under the Alluvial Deposits -(2) Geophysical and Geochemical Survey of the Kawafune Fault- OYAMA, Ken-ichiro KUSUNOKI, Kenzo KIHO, Mutsumi MOTOJIMA, Koichi SUZUKI, Yasuhiro FUJIMITSU and Shuichi HASHIMOTO Abiko Research Laboratory Report, U91017.
43.	Development and Application of Time Domain Electromagnetic Method for Geothermal Survey Results of Experiment at Ogachi Site (Hot Dry Rock Power Generation Experiment Site) Koichi SUZUKI, Ken-ichiro KUSUNOKI and Yasuhiro FUJIMITSU Abiko Research Laboratory Report, U90059.
44.	Economic Predictions of Hot Dry Rock Geothermal Large Power Station HDR Cost Study Committee Abiko Research Laboratory Report, U90801.
45.	Application of Two-dimensional Automatic Analysis of High Density Electrical Exploration of Faults under Quaternary Koichi SUZUKI, Ken-ichiro KUSUNOKI, Yasuhiro FUJIMITSU, Takahiro OYAMA and Kenji SONE Abiko Research Laboratory Report, U90032.

Papers

1.	Yasuhiro FUJIMITSU, Jun NISHIJIMA, Sachio EHARA, Tohru MOGI, Transition of Numerical Models for the Hydrothermal System of the Kuju Volcano, Japan, Proceedings World Geothermal Congress 2020+1, 9p, 2021.04.
2.	Yasuhiro FUJIMITSU, Jun NISHIJIMA, Numerical Model of Futsukaichi Hot Springs, a Low-enthalpy Geothermal System in Japan, Proceedings of Grand Renewable Energy 2018, O-Ge-1-3, 4p, 2018.06.
3.	Monitoring Technique for Sustainable Geothermal Power Generation Yasuhiro FUJIMITSU Geotechnical Engineering Magazine, Vol. 65, No. 2, pp.10-11, February, 2017.
4.	Geothermal Reservoir Monitoring by Repeated Precise Gravity Measurement –With Current State of Geothermal Power Yasuhiro FUJIMITSU and Jun NISHIJIMA Journal of Cryogenics and Superconductivity Society of Japan, Vol. 50, No. 9, pp.451-457, September, 2015.
5.	Yasuhiro FUJIMITSU, Jun NISHIJIMA, Gravity Surveys in Kurume City, Fukuoka, Japan for Subsurface Structure of Non-volcanic Hydrothermal Systems, Proceedings of Grand Renewable Energy 2014, O-Ge-6-3, 4p, 2014.07.
6.	Current State of Geothermal Energy Utilization in Japan Yasuhiro FUJIMITSU Proceedings of Annual Presentation of Institute of Cryogenic Engineering in FY2012, Cryogenics and Superconductivity Society of Japan, pp.35-38, July, 2013.
7.	Yasuhiro FUJIMITSU, Precise Repeat Gravity Measurement for Estimation of Mass Balance in a Geothermal Reservoir, Proceedings of 2013 APEC Workshop on Geothermal Energy Development in Taipei, Taiwan, 2p, 2p, 2013.06.
8.	Yasuhiro FUJIMITSU and Jun NISHIJIMA, Exploration of Non-volcanic Hydrothermal Systems in Fukuoka Prefecture, Japan, by Gravity Surveys, 日本地熱学会誌, 33, 2, 87-92, 第33巻，第2号，pp.87-92, 2011.04.
9.	Yasuhiro FUJIMITSU and Jun NISHIJIMA, Exploration of Non-volcanic Hydrothermal Systems in Fukuoka Prefecture, Japan, by Gravity Surveys, RENEWABLE ENERGY 2010 Proceedings, CD-ROM, 2010.10.
10.	Yasuhiro FUJIMITSU, Daisuke OKA and Sachio EHARA, Numerical Simulation for Development Process of a Non-Volcanic Hydrothermal System Caused by a Permeable Fracture Zone, Proceedings of the World Geothermal Congress 2010, CD-ROM, 2010.04.
11.	Yasuhiro FUJIMITSU, Jun NISHIJIMA and Atsushi YAMASHITA, Densely-arranged Gravity Surveys of Tagawa Fault in Oto Town, Fukuoka, Japan, 九大地熱・火山研究報告, 18, 9-18, 第18号，pp.9-18, 2009.12.
12.	Yasuhiro FUJIMITSU and Jun NISHIJIMA, Exploration of Underground Structure in Oto Town, Fukuoka Prefecture, Japan, by Gravity Survey, Proceedings of 31st New Zealand Geothermal Workshop 2009, 5p, 5p, 2009.11.
13.	Yasuhiro FUJIMITSU, Koichiro FUKUOKA, Sachio EHARA, Hiroto TAKESHITA and Fuminori ABE, Evaluation of Subsurface Thermal Environmental Change Caused by a Ground-coupled Heat Pump System, Current Applied Physics, 10.1016/j.cap.2009.11.014, Online, DOI 10.1016/j.cap.2009.11.014, 4p, 2009.11.
14.	Yasuhiro FUJIMITSU, Daisuke OKA, Sachio EHARA and Akira ONO, Development of a Non-volcanic Hydrothermal System Caused by a Permeable Fracture Zone, Proceedings of 30th New Zealand Geothermal Workshop 2008, pp.228-233, 2008.11.
15.	Yasuhiro FUJIMITSU, Koichiro FUKUOKA, Sachio EHARA, Hiroto TAKESHITA and Fuminori ABE, Evaluation of Subsurface Thermal Environmental Change Caused by a Ground-coupled Heat Pump System, Proceedings of RENEWABLE ENERGY 2008, CD-ROM, 2008.10.
16.	Yasuhiro FUJIMITSU, Sachio EHARA, Ryosuke OKI and Ryohei KANOU, Numerical Model of the Hydrothermal System beneath Unzen Volcano, Japan, Journal of Volcanology and Geothermal Research, Vol. 175, No. 1-2, pp.35-44, 2008.07.
17.	Yasuhiro FUJIMITSU, Agus SETYAWAN, Koichiro FUKUOKA, Jun NISHIJIMA, Sachio EHARA and Hakim SAIBI, Geophysical Investigations of Ungaran Volcano, Central Java, Indonesia, Proceedings of 29th New Zealand Geothermal Workshop 2007, CD-ROM, 2007.11.
18.	Yasuhiro FUJIMITSU, Toshiharu KIDO, Jun NISHIJIMA, Sachio EHARA, High-Accuracy Estimation of Heat Discharge Rates from Unzen Geothermal Area, Japan, Using Infrared Imagery by a Helicopter-Borne Thermo-Camera, RENEWABLE ENERGY 2006 Proceedings, p.1557-1560 (CD-ROM), 2007.01.
19.	藤光康宏，西島　潤，平野智弘, Densely-arranged Gravity Survey in Fukuoka City, Japan -Relation between the Subsurface Structure and the Low Temperature Hydrothermal System of Fukuoka-, Proceedings of 28th New Zealand Geothermal Workshop 2006, CD-ROM, 2006.11.
20.	Geothermal Fluid Flow Model in Shimabara Peninsula Yasuhiro FUJIMITSU, Sachio EHARA and Ryosuke OKI Journal of the Geothermal Resources Society of Japan, Vol. 28, No. 4.
21.	Geophysical Observations at Kuju Volcano by KGVRS (1995-2005) Kuju Geothermal and Volcanological Research Station Yasuhiro FUJIMITSU, Jun NISHIJIMA, Koichiro FUKUOKA and Sachio EHARA Geothermal and Volcanological Research Report of Kyushu University, No.14.
22.	藤光康宏・木戸俊晴・西島　潤・江原幸雄, Estimation of Heat Discharge Rates from Unzen Geothermal Area, Japan, by Using the Heat Balance Technique, Proceedings of 27th New Zealand Geothermal Workshop 2005, On-line Paper, 2005.10.
23.	藤光康宏・加納良平・西島　潤・江原幸雄, Hydrothermal System after the 1990-95 Eruption near the Lava Dome of Unzen Volcano, Japan, Proceedings of World Geothermal Congress 2005, CD-ROM, 2005.05.
24.	Study on High-accuracy Estimation of Heat Discharge Rate by Heat Balance Technique -Observation of Unzen Geothermal Area by Heliborne Infrared Thermal Imager- Yasuhiro FUJIMITSU, Toshiharu KIDO, Jun NISHIJIMA, Sachio EHARA and Tomoya AKIRA Geothermal and Volcanological Research Report of Kyushu University, No.13.
25.	藤光康宏・大木良介・江原幸雄, Temperature Estimation around the Conduit of the 1990-95 Eruption at Unzen Volcano by Numerical Simulation, Proc. of 26th New Zealand Geothermal Workshop 2004, pp. 100-103, 2004.12.
26.	藤光康宏・加納良平, Numerical Modelling of the Hydrothermal System in Unzen Volcano, Japan, Proceedings of 25th New Zealand Geothermal Workshop 2003, pp.173-178, 2003.11.
27.	藤光康宏・西島　潤・大場　裕・江原幸雄, Low Temperature Hydrothermal System in the Southern Area of Fukuoka City, Japan, Proceedings of 38th International Conference of Societe Internationale des Techniques Hydrothermales, pp.119-124, 2003.09.
28.	藤光康宏・江原幸雄・西島　潤・加納良平・平尾龍也, Study on Hydrothermal System Development, Unzen Volcano, Japan: A Topic in Phase I of the Unzen Scientific Drilling Project, Proceedings of 24th New Zealand Geothermal Workshop 2002, pp.283-287, 2002.11.
29.	藤光康宏・加納良平・西島　潤・江原幸雄・平尾龍也, Investigation and Modeling of Hydrothermal System of Unzen Volcano, Japan -A Study in the Unzen Scientific Drilling Project-, International Workshop on Intelligent Mining Systems, pp.15-20, 2002.04.
30.	藤光康宏・江原幸雄・中野裕一・西島　潤・小屋政裕, Water Discharge and Recharge Balance of Kuju Volcano, Japan, Deduced from Thermal and Gravity Measurements, Geothermal Resources Council Transactions, Vol.23, pp.415-418, 1999.10.
31.	Experimental Study on Temperature Dependence of Resistivity of Dried Rocks Toyohisa FUJITA, Yasuhiro FUJIMITSU, Satoshi AKIBAYASHI, Hiroyuki KOSUKEGAWA, Yuji YAMAMOTO and Toshio MIZUTA Journal of the Geothermal Resources Society of Japan, Vol. 17, No. 2.
32.	Application of Seismic, Resistivity and Radar Geotomographies for Surveying Geological Properties Koichi SUZUKI, Ken-ichiro KUSUNOKI and Yasuhiro FUJIMITSU Soil mechanics and foundation engineering, Vol. 42, No. 5.
33.	Geophysical Exploration for Hot Dry Rock Geothermal Energy Development Yoshinao HORI, Hideshi KAIEDA and Yasuhiro FUJIMITSU Butsuri-Tansa (Geophysical Exploration), Vol. 44, No. 6.
34.	Modeling of Geothermal Area by Simulation of Hydrothermal System Yasuhiro FUJIMITSU Electric Power Civil Engineering, No.234.
35.	Numerical Model of Takenoyu-Sugawara Geothermal Area and an Interpretation of a Low Resistivity Zone with KYU88-1, the Simulator for Thermal Water Flow Yasuhiro FUJIMITSU, Kozo YUHARA Journal of the Geothermal Resources Society of Japan, Vol. 11, No. 4.
36.	Kozo YUHARA, Yasuhiro FUJIMITSU, Takashi Okabe, Simulation of the Hydrothermal System at Hirayu Hot Springs, Japan, Hydrogeological Regimes and Their Subsurface Thermal Effects, Geophysical Monograph 47, IUGG Volume 2, pp. 107-118, 1989.01.
37.	A Comparison of the ELF-MT Resistivity Structure and the Thermal Structure in Takenoyu Geothermal Area Tohru MOGI, Sachio EHARA, Kozo YUHARA, Keishi ASOSHINA and Yasuhiro FUJIMITSU Journal of the Geothermal Resources Society of Japan, Vol. 9, No. 3.
38.	Infrared Imageries of Volcanic and Geothermal Areas in Kyushu by Helicopter Kozo YUHARA, Sachio EHARA, Miyuki HARA and Yasuhiro FUJIMITSU Journal of the Geothermal Resources Society of Japan, Vol. 9, No. 4.
39.	Heat Discharge and Flow System of Obama Hot Springs, Nagasaki Prefecture Kozo YUHARA, Sachio EHARA, Masao FUTAGOISHI and Yasuhiro FUJIMITSU Journal of the Balneological Society of Japan, Vol. 37, No. 1.

Presentations

1.	藤光康宏，西島潤，辻健，米津幸太郎，分山達也，糸井龍一, 東アフリカ大地溝帯の熱水系の解明－SATREPSによるケニアとの共同研究－, 日本地球惑星科学連合2021年大会, 2021.06.
2.	Yasuhiro FUJIMITSU, Jun NISHIJIMA, Sachio EHARA, Tohru MOGI, Transition of Numerical Models for the Hydrothermal System of the Kuju Volcano, Japan, World Geothermal Congress 2020+1, 2021.07.
3.	Yasuhiro FUJIMITSU, Brief Overview of the SATREPS Project, 11th Incubation Webinar (Kyushu University, Geothermal Development Company and Jomo Kenyatta University of Agriculture and Technology Joint Seminar), 2020.12.
4.	藤光康宏, 西島　潤, 水澤慶之, 九重火山の熱水系数値モデルによる重力変動観測結果のヒストリーマッチング, 日本地熱学会令和2年学術講演会, 2020.11.
5.	藤光康宏, 西島　潤, 九重火山地域の熱水系／熱構造数値モデル, 日本地球惑星科学連合2020年大会, 2020.07.
6.	Yasuhiro FUJIMITSU, Comprehensive Solutions for Optimum Development of Geothermal Systems in East Africa Rift Valley (Kenya), 九州大学エネルギーウィーク2020, 2020.01.
7.	Researches on Utilization of Geothermal Energy by Kyushu Univerisity Yasuhiro FUJIMITSU Echo Techno 2019, West Japan General Exhibition Center Annex, Kitakyushu, Fukuoka, October, 2019.
8.	Transition of Numerical Models for Hydrothermal System of Kuju Volcano Constructed by Kyushu University Yasuhiro FUJIMITSU, Jun NISHIJIMA, Sachio EHARA, Toru MOGI 2018 Annual Meeting of Geothermal Research Society of Japan, November, 2018.
9.	Researches on Utilization of Geothermal Energy by Kyushu Univerisity Yasuhiro FUJIMITSU Echo Techno 2018, West Japan General Exhibition Center Annex, Kitakyushu, Fukuoka, October, 2018.
10.	Yasuhiro FUJIMITSU, Jun NISHIJIMA, Numerical Model of Futsukaichi Hot Springs, a Low-enthalpy Geothermal System in Japan, Grand Renewable Energy 2018, 2018.06.
11.	Numerical Modeling of a Non-volcanic Hydrothermal System -Futsukaichi Hot Springs Area, Fukuoka Prefecture- Yasuhiro FUJIMITSU, Jun NISHIJIMA, Ryota KAMIMURA 2017 Annual Meeting of Geothermal Research Society of Japan, October, 2017.
12.	Researches on Utilization of Geothermal Energy by Kyushu Univerisity Yasuhiro FUJIMITSU Echo Techno 2017, West Japan General Exhibition Center Annex, Kitakyushu, Fukuoka, October, 2017.
13.	Yasuhiro FUJIMITSU, Numerical Modeling for a Broad Geothermal System, 2017 International Forum on Geothermal Technology, 2017.09.
14.	Geothermal Energy -the Gift from the Earth- Yasuhiro FUJIMITSU The 12th Renewable Energy 2017 Exibition, Pacifico Yokohama, Kanagawa, October, 2017.
15.	Gravity Variation Measurements and Numerical Modeling for the Hydrothermal System of the Kuju Volcano Yasuhiro FUJIMITSU, Jun NISHIJIMA Japan Geoscience Union Meeting 2017, May, 2017.
16.	Gravity Survey at the Hot Springs Area in the Southwestern Part of Kirishima Volcanoes Yasuhiro FUJIMITSU and Jun NISHIJIMA 2016 Annual Meeting of Geothermal Research Society of Japan, October, 2016.
17.	Researches on Utilization of Geothermal Energy by Kyushu Univerisity Yasuhiro FUJIMITSU Echo Techno 2016, October, 2016.
18.	藤光 康宏, Human Resources Development for Geothermal Development, Tokyo International Conference on African Development (TICAD) VI Side Event “Towards Affordable and Clean Energy in Africa”, 2016.08.
19.	Gravity Surveys in Southwestern Part of the Kirishima Volcanic Area Yasuhiro FUJIMITSU and Jun NISHIJIMA Japan Geoscience Union Meeting 2016, May, 2016.
20.	Discussion about Possible Existence of Supercritical Fluids in the Hydrothermal Systems of Volanoes by Numerical Modeling Yasuhiro FUJIMITSU and Jun NISHIJIMA 2015 Annual Meeting of Geothermal Research Society of Japan, October, 2015.
21.	Numerical Modeling for a Broad Geothermal System of Kuju Volcano Yasuhiro FUJIMITSU, Yohei ITO, Jun NISHIJIMA and Daisuke OKA Japan Geoscience Union Meeting 2015, May, 2015.
22.	Yasuhiro FUJIMITSU, Yohei ITO, Jun NISHIJIMA, Daisuke OKA, Numerical Modeling of Hydrothermal Systems around Kuju Volcanic Field -an Attempt of Numerical Modeling for a Broad Geothermal System-, World Geothermal Congress 2015, 2015.04.
23.	Numerical Modeling of Volcanic Carbon Dioxide Emission from Kuju Volcano, Japan Yasuhiro FUJIMITSU, Norihide MAEDA, Sachio EHARA and Tetsuro NODA 2014 Annual Meeting of Geothermal Research Society of Japan, October, 2014.
24.	Yasuhiro FUJIMITSU, Jun NISHIJIMA, Gravity Surveys in Kurume City, Fukuoka, Japan for Subsurface Structure of Non-volcanic Hydrothermal Systems, Grand Renewable Energy 2014, 2014.07.
25.	Heat Balance Technique under the Condition that the influence of Solar Radiation Can Be Negligible Yasuhiro FUJIMITSU and Jun NISHIJIMA Japan Geoscience Union Meeting 2014, April, 2014 .
26.	New Analytical Method for the Heat Balance Technique -In the Case that the Influence of Insolation can be Negligible- Yasuhiro FUJIMITSU and Shohei OSHIKATA 2013 Annual Meeting of Geothermal Research Society of Japan, November, 2013.
27.	藤光 康宏, 西島 潤, 地熱系の解明を目指して, EUIJ九州　第3回年次国際会議, 2013.11.
28.	Yasuhiro Fujimitsu, Norihide MAEDA, Sachio EHARA, Tetsuro NODA, Estimation of Carbon Dioxide Emission from Kuju Volcano, Japan, and Its Numerical Modeling, IAVCEI 2013 Scientific Assembly in Kagoshima, 2013.07, Kuju Volcano is located in Kyushu and one of the active volcanoes in Japan. In order to infer the mass balance and energy balance of the hydrothermal system in the Kuju volcanic area, we tried to estimate volcanic CO2 emission and to construct a numerical model of the hydrothermal system of Kuju Volcano. We considered four forms of volcanic CO2 emission; from the fumaroles, the bare area around the fumaroles, the flank by the soil gas, and some hot springs at the foot of the volcano. We adopted the value of about 166 t/day from the plumes of Kuju Volcano estimated by Ehara et at. (1981). On the other hand, Itoi (1993) shows the distribution of soil gas CO2 concentration in the bare area around the fumaroles. In our previous study (Araragi et al., 2008), the relationship between soil gas CO2 concentration measured by the Kitagawa Gas Detector Tube System and CO2 flux measured by a CO2 flux meter in Kuju Volcano was found. Therefore, the CO2 concentration values shown by Itoi (1993) were converted into the CO2 flux values, and about 0.8 t/day of the volcanic CO2 emission was estimated. We measured soil gas CO2 concentration at 60 points on the flank of the volcano by the Kitagawa Gas Detector Tube System and collected 15 soil gas samples to conduct the carbon isotope analysis to identify the origin of the CO2. As a result, we concluded that the volcanic CO2 emission from the flank was 0 t/day. And for the CO2 emission from the hot springs at the foot of the volcano, the hot water discharge rate and the average CO2 concentration in the carbonated water of the Nagayu Hot Springs area was adopted. Then about 5.0 t/day of the volcanic CO2 emission from Nagayu Hot Springs was estimated. These results show that the volcanic CO2 emissions by the plumes from the fumaroles and by the carbonated water from a hot springs area are dominant in Kuju Volcano. In order to construct a numerical model of the hydrothermal system of Kuju Volcano, we used a geothermal simulator STAR Version 9 (Pritchett, 1989) that can treat the components of H2O and CO2 but has the limitations of temperature from 0 to 350 deg. C and pressure from 1 to 600 bars. The modeling area has a horizontal extension of 25 km (E-W) and 15 km (N-S), and a vertical extension from -500 m asl to the ground surface. Finally, we constructed a numerical model, which explains the heat discharge rate and CO2 emission rate by the plumes from the fumaroles and the CO2 emission rate from the Nagayu Hot Springs area, by trial and error. This numerical model also indicates that the volcanic CO2 emission is dominated by the gas from the fumaroles and hot water from Nagayu Hot Springs..
29.	Yasuhiro Fujimitsu, Precise Repeat Gravity Measurement for Estimation of Mass Balance in a Geothermal Reservoir, 2013 APEC Workshop on Geothermal Energy Development, 2013.06, Precise repeat gravity measurement, which is also called as “repeat microgravity measurement”, is one of the suitable methods for geothermal reservoir monitoring. In a geothermal power station area, the production and reinjection of geothermal fluid cause mass movement and redistribution, which can cause measurable gravity changes on the ground surface. And the mass balance in the geothermal reservoir, especially the relation between production and recharge of the geothermal fluid, can be estimated from the temporal gravity changes measured on the ground surface..
30.	Estimation of Volcanic Carbon Dioxide Emission Rate from Kuju Volcano, Japan Yasuhiro FUJIMITSU, Norihide MAEDA, Sachio EHARA and Tetsuro NODA Japan Geoscience Union Meeting 2013, May, 2013 .
31.	Yasuhiro Fujimitsu, Simulation Technologies for JBBP, 10th International Workshop on Water Dynamics & ICDP Japan Beyond-Brittle Project, 2013.03, Even in JBBP, existing HDR simulation techniques are fundamentally applicable because the fractures are created in a brittle area. However, when the well-known HDR simulator Geocrack (Swenson and Hardman, 1997) or D/SC (Tezuka and Watanabe, 2000) is applied to JBBP, we will encounter two problems. One is high temperature especially in the early stage of fracture development. Unfortunately, current version of Geocrack and D/SC cannot treat supercritical water. But techniques for treatment of supercritical water has already adopted by some geothermal reservoir simulators (e.g. HYDROTHERM (Hayba and Ingebritsen, 1994), and the supercritical module of TOUGH2 (Pruess, 1991) and STAR (Pritchett, 1995)), and the techniques are applicable to Geocrack and D/SC. The other problem is fracture modeling. For example, treatment of fractures in D/SC is excellent. However, it is expected to be difficult to acquire some core samples or to observe the wall surface of the wells drilled in JBBP. Therefore, information on the fractures for deterministic and stochastic fracture modeling is hard to obtain. For solving the problem, modeling techniques for fracturing in shale gas reservoirs are expected to be informative..
32.	Gravity Surveys of Minoh Fault -Relationship between Subsurface Structure of the Fault and Hot Springs- Yasuhiro FUJIMITSU and Jun NISHIJIMA 2012 Annual Meeting of Geothermal Research Society of Japan, October, 2012.
33.	Investigations for the Hydrothermal System of the Yumugi Area in the Kuchinoerabujima Volcano Yasuhiro FUJIMITSU, Sachio EHARA, Jun NISHIJIMA, Takeshi KITAJIMA, Daisuke OKA, Masanori KOGA, Norihide MAEDA, Hiroki KAI, Masahide KOJO and Hiroaki KOGA Japan Geoscience Union Meeting 2012, May, 2012 .
34.	Hybrid Micro-gravity Measurement at Ogiri Geothermal Power Plant -Gravity Changes before and after the Regular Maintenance- Yasuhiro FUJIMITSU, Jun NISHIJIMA, Daisuke OKA and Junichi TAKAYAMA 2011 Annual Meeting of Geothermal Research Society of Japan, November, 2011.
35.	Relationship between the Coefficient of Geothermal Flux for the Heat Balance Technique and micrometeorological data Yasuhiro FUJIMITSU, Jun NISHIJIMA and Sachio EHARA Japan Geoscience Union Meeting 2011, May, 2011.
36.	Measurement and Control Techniques for Sustainable Exploitation and Utilization of Geothermal Energy -Modeling- Yasuhiro FUJIMITSU 2010 Annual Meeting of Geothermal Research Society of Japan, November, 2010.
37.	Relationship between the Coefficient of Geothermal Flux and Micrometeorological Data Used in the Heat Balance Technique Yasuhiro FUJIMITSU 2010 Annual Meeting of Geothermal Research Society of Japan, November, 2010.
38.	Exploration of Non-volcanic Hydrothermal Systems in Fukuoka Prefecture, Japan, by Gravity Surveys Yasuhiro FUJIMITSU and Jun NISHIJIMA Renewable Energy 2010, July, 2010.
39.	Relationship between the Coefficient of Geothermal Flux and Ground Surface Temperature Anomaly Yasuhiro FUJIMITSU, Jun NISHIJIMA and Sachio EHARA Japan Geoscience Union Meeting 2010, May, 2010.
40.	Numerical Simulation for Development Process of a Non-Volcanic Hydrothermal System Caused by a Permeable Fracture Zone Yasuhiro FUJIMITSU, Daisuke OKA and Sachio EHARA World Geothermal Congress 2010, Bali, Indonesia, April, 2010.
41.	Gravity Survey in Oto Town, Fukuoka Prefecture Yasuhiro FUJIMITSU, Jun NISHIJIMA, Yayan SOFYAN and Yuuki FUKUI 2009 Annual Meeting of Geothermal Research Society of Japan.
42.	Exploration of Underground Structure in Oto Town, Fukuoka Prefecture, Japan, by Gravity Survey Yasuhiro FUJIMITSU and Jun NISHIJIMA New Zealand Geothermal Workshop 2009, November, 2009.
43.	Development of a Non-volcanic Hydrothermal System Caused by a Permeable Fracture Zone Yasuhiro FUJIMITSU, Daisuke OKA, Sachio EHARA and Akira ONO 30th New Zealand Geothermal Workshop 2008, November, 2008.
44.	Numerical Modeling of Hydrothermal System of Kuju Volcano before and after the 1995 Eruption Yasuhiro FUJIMITSU, Sachio EHARA, Chisuga IDE, Jun NISHIJIMA and Koichiro FUKUOKA 2008 Annual Meeting of Geothermal Research Society of Japan.
45.	Evaluation of Subsurface Thermal Environmental Change Caused by a Ground-coupled Heat Pump System Yasuhiro FUJIMITSU, Koichiro FUKUOKA, Sachio EHARA, Hiroto TAKESHITA and Fuminori ABE RENEWABLE ENERGY 2008, October, 2008.
46.	Comprehensive Research on Akune Hot Springs, Kagoshima Prefecture Yasuhiro FUJIMITSU, Sachio EHARA, Koichiro FUKUOKA, Jun NISHIJIMA, Keiko SASAKI, Toru MARUYAMA and Tetsuro NODA 2007 Annual Meeting of Geothermal Research Society of Japan.
47.	Geophysical Investigations of Ungaran Volcano, Central Java, Indonesia Yasuhiro FUJIMITSU, Agus SETYAWAN, Koichiro FUKUOKA, Jun NISHIJIMA, Sachio EHARA and Hakim SAIBI 29th New Zealand Geothermal Workshop 2007.
48.	Development of Integrated Geophysical Airborne Survey System -Infrared Imagery Observation Tests over Aso and Bandai Volcanoes- Yasuhiro FUJIMITSU, Hisatoshi ITO and Hiroshi OHNISHI 2006 Annual Meeting of Geothermal Research Society of Japan.
49.	Densely-arranged Gravity Survey in Fukuoka City, Japan -Relation between the Subsurface Structure and the Low Temperature Hydrothermal System of Fukuoka- Yasuhiro FUJIMITSU, Jun NISHIJIMA and Tomohiro HIRANO 28th New Zealand Geothermal Workshop 2006, November, 2006.
50.	High-Accuracy Estimation of Heat Discharge Rates from Unzen Geothermal Area, Japan, Using Infrared Imagery by a Helicopter-Borne Thermo-Camera Yasuhiro FUJIMITSU, Toshiharu KIDO, Jun NISHIJIMA and Sachio EHARA Renewable Energy 2006.
51.	Thermal Process in the Body of Unzen Volcano and the Hydrothermal System in the Shimabara Peninsula Yasuhiro FUJIMITSU, Ryosuke OKI and Sachio EHARA 2005 Annual Meeting of Geothermal Research Society of Japan.
52.	Geothermal fluid flow model in Shimabara Peninsula Yasuhiro FUJIMITSU, Sachio EHARA, Ryosuke OKI 2005 Annual Meeting of Geothermal Research Society of Japan.
53.	Bouguer Anomalies in Fukuoka and Kurume Areas by Gravity Surveys with Densely Arranged Stations Yasuhiro FUJIMITSU, Jun NISHIJIMA, Tomohiro HIRANO, Sachio EHARA 2005 Annual Meeting of Geothermal Research Society of Japan.
54.	Estimation of Heat Discharge Rates from Unzen Geothermal Area, Japan, by Using the Heat Balance Technique Yasuhiro FUJIMITSU, Toshiharu KIDO, Jun NISHIJIMA and Sachio EHARA 27th New Zealand Geothermal Workshop 2005, October, 2005.
55.	High-accuracy Estimation of Heat Discharge Rate on Unzen Geothermal Area by Heat Balance Technique Yasuhiro FUJIMITSU, Toshiharu KIDO, Jun NISHIJIMA and Tomoya AKIRA 2004 Annual Meeting of Geothermal Research Society of Japan.
56.	Temperature Estimation around the Conduit of the 1990-95 Eruption at Unzen Volcano by Numerical Simulation Yasuhiro FUJIMITSU, Ryosuke OHKI and Sachio EHARA 26th New Zealand Geothermal Workshop 2004.
57.	Unzen-Obama Geothermal Project (3)Gamma-ray Intensity Investigation in Obama Hot Spring Area Y. Fujimitsu, Y. Oba and K. Yamada 2003 Annual Meeting of Geothermal Research Society of Japan.
58.	Numerical Modelling of the Hydrothermal System in Unzen Volcano, Japan Y. Fujimitsu and R. Kanou 25th New Zealand Geothermal Workshop 2003.
59.	Repeat Gravity Measurement at Unzen Volcano Y. Fujimitsu, J. Nishijima and S. Ehara Volcanological Society of Japan 2003 Fall Meeting.
60.	Low Temperature Hydrothermal System in the Southern Area of Fukuoka City, Japan Y. Fujimitsu, J. Nishijima, Y. Oba and S. Ehara 38th International Conference of Societe Internationale des Techniques Hydrothermales.
61.	Hydrothermal System in the Body of Unzen Volcano After the 1990-95 Eruption Y. Fujimitsu, S. Ehara, J. Nishijima, R. Kanou, T. Hirao and K. Kawagashira International Union of Geodesy and Geophysics 2003.
62.	Evolution Possibility of Hydrothermal System in Unzen Volcano Y. Fujimitsu, S. Ehara and J. Nishijima 2003 Japan Earth and Planetary Science Joint Meeting.
63.	Study on Hydrothermal System Development, Unzen Volcano, Japan: A Topic in Phase I of the Unzen Scientific Drilling Project Y. Fujimitsu, S. Ehara, J. Nishijima, R. Kanou and T. Hirao 24th New Zealand Geothermal Workshop 2002.
64.	Investigations and Modeling of Hydrothermal System of Unzen Volcano, Japan -A Study in the Unzen Scientific Drilling Project- Y. Fujimitsu, R. Kanou, J. Nishijima, S. Ehara and T. Hirao International Workshop on Intelligent Mining Systems.
65.	Underground Structure of Low Temperature Geothermal System -Southern Area of Fukuoka City- Y. Fujimitsu, J. Nishijima, Y. Oba, K. Fukuoka, D. Gerovska and S. Ehara 2001 Annual Meeting of Geothermal Research Society of Japan.
66.	Thermal Observations of Unzen Volcano and Estimation of Its Conduit Cooling Condition Y. Fujimitsu, S. Ehara and J. Nishijima 2001 Japan Earth and Planetary Science Joint Meeting.

Undergraduate
"Geothermal Engineering II", "Earth Science and Technology: Experiment I", "Earth Science and Technology: Experiment II", "Earth Resources Engineering Internship", "Earth System, Marine and Civil Engineering: Exercise", "Introduction to Earth System, Marine and Civil Engineering II"

Graduate
"Modeling on Geothermal System", "Geothermal Engineering: Experiment", "Special Lecture on Earth Resources Engineering I", "Exercise on Earth Resources Engineering I"

International Special Course on Environmental Systems Engineering Doctoral Course
"Modeling and monitoring of geothermal and volcanic system"

The Second Training Course on Renewable Energy Resources (JICA)
"Design technique of Hot Dry Rock geothermal reservoir"

I am conducting some joint researches with other organizations (see the list of "Joint research/surveys and research commissions"), and was a member of some committees of NEDO (see the list of "Committee activities").
JICA international training course "Intensive Training for Geothermal Resource Engineers" has been commenced in 2016 by Department of Earth Resources Engineering, Kyushu University, and I was a deputy course leader. And I am a course leader since 2017..