Kyushu University Academic Staff Educational and Research Activities Database
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Mariko Igimi Last modified date:2023.11.22

Professor / Fundamental Legal Science
Department of Fundamental Legal Science
Faculty of Law

Graduate School
Undergraduate School

 Reseacher Profiling Tool Kyushu University Pure
Academic Degree
Country of degree conferring institution (Overseas)
Field of Specialization
Roman Law
Total Priod of education and research career in the foreign country
Outline Activities
Prof. Dr. Mariko Igimi-Yasutake worked at the Faculty of Law and Letters of the Ehime-University from 1996 to 2002 at first as a lecturer and later as an associate professor, after recieving a doctor's degree from the Kyushu University in 1995, and is an associate professor at the Faculty of Law at the Kyushu University since April 2002, full professor since April 2007.
Research Interests
  • The Role of the Freed Slaves in Roman Law of Contract
    keyword : Freed Slaves, Classical Roman Law, Law of Contract
  • locatio conductio and "slave work" in Ancient Rome
    keyword : Roman Contract Law, Roman Slavery, Work Reform
  • Rechtsdenken des roemischen Volk
    keyword : Roman Law, People of Rome, Plautus, legal consciousness, consensus, contract
  • Humor for Lawyers
    keyword : Roman Law, Papinianus, Legal Reasoning, Legal Analogy
  • From nudum pactum to consensual contract.
    keyword : Roman Law, Law of Contract, Law of Obligation, pactum
    2004.04From pactum to contractus.
Current and Past Project
  • Reception of European Legal Concepts in East Asia
  • Reception and Friction of Legal Consepts in Multicultural Society.
Academic Activities
1. Mariko Igimi, Ulrike Babusiaux, Johannes Platscheck, Pompeo Polito, Cornelius van der Merwe, Frits Brandsma, Wataru Miyasaka, Takeshi Sasaki, Carlos Amunategui, Yasunori Kasai, Messages from Antiquity. Roman Law and Current Legal Debates., Bölaw Verlag, 2019.07, [URL], Roman law has shaped the Civil law tradition but its influence undoubtedly also extends to Common law countries. Legal institutions as well as legal reasoning reassembled in the Corpus iuris civilis have been studied for nearly one thousand years in Western Europe and have been a constant point of reference. Japanese law adopted this tradition since the Meiji-era. Roman law does not only offer a historical insight into the foundations of modern legal thinking, but can also be a useful tool for deeper understanding and analysis of current legal problems. The international seminar held at the University of Kyushu in February 2016 intended to show the validity of Roman law for contemporary legal practitioners facing current challenges by looking at selected issues..
1. Pro Calatoria Themide. Iusta Case and the Living Conditions of Freed Slaves..
2. Zwischen der Abhängigkeit und der Autonomie:Zu Freigelassenen und mandatum im klassischen römischen Recht.
3. On Procedure of transactio alimenti in Ancient Rome ~ A Public Intervention based on oratio of Marc Aurel~.
4. Mariko Igimi, An Observation on Consumer Protection in Electronic Sale of Goods from the Perspective of Roman Law
, Messages from Antiquity. Roman Law and Current Legal Debates., 169-183, 2019.07, The article aims to compare current development of electronic sale of goods with the introduction of consensual contract in Rome..
5. Occupatio in Roman Everyday Life.
6. Zum Rechtswissen des römischen Volks.Recht als ,,fontes risus“ in der plautinischen Komädien.
7. contrarius consensus.
8. contrarius consensus.
9. On renuntiatio mandati in Gai. D.17,1,27 (9 ed.prov.)..
1. 五十君麻里子, libertis libertabusque relicta alimenta, Societé International du Histoire de Droit de l'Antiquitè, 2019.09, [URL], Alimentum is the maintenance that consists of habitation, food, clothing etc. D.34,1 deals with the legacy of alimentum of which most of the legatees are freedmen and freedwomen. This explains why the oratio of Marcus Aurelius required authorization of the praetor to compromise in respect of alimenta left by will (D.2,15,8). The reason for this intervention is that the persons to whom maintenance was left tend to be satisfied by immediate payment of small sum of money.
The oratio was aplied, however, only to the compromise between the heir and the legatees. What was the living condition of freedmen and freedwomen while testator, i.e. the former owner was still alive? How did they maintain their living?
The presentation analyzes the texts which deal with alimenta given to freedmen and freedwomen and tries to highlight the mechanism that served as "social welfare" for the majority of people who were not well-off..
2. Mariko Igimi, Funny Laws. Legal Knowledge of the Audience of Plautine Comedies, Societé International de Histoir de Droit Antiquitè, 2012.09.
3. (German)
Die Wirkung des Konsens --- Zum Koexistenz der Konsensualkontrakten und Stipulationen.
Educational Activities
Contract Law, Roman Law, Seminars, legal Japanese, Introduction to the Japanese legal history etc.
Other Educational Activities
  • 2015.04.
  • 2010.04, The project " Internationalizing Japanese Undergraduates in Law" has been accepted as an EEP project..