Emeritus Professor of Legal Philosophy
Visiting Fellow in
the Advanced Institute for Law and Politics, Graduate School of  Law
University of Hokkaido

Academic Career

2023                 Visiting Professor, Durham University Law School, U. K.

2019-2022        Adjunct Lecturer of Legal Philosophy, Graduate School of Law, University of Hokkaido

2013-2022         Associate Instructor, Modern Japanese Studies Program, University of Hokkaido

2017-2020          Executive Director- Vice President, University of Hokkaido

1997-2019           Member, The Board of Directors, The Japan Association of Legal Philosophy

1983-2019          Professor of Philosophy of Law, School of Law, University of Hokkaido

2007-2017           Joint Staff, Hokkaido University Center for Experimental Research in Social Sciences 

2007-2017           Joint Staff, Hokkaido University Center for Ainu and Indigenous Studies 

2014-2016           Dean, School of Law, University of Hokkaido   

2010-2016           Senior Fellow, Meridian 180 Project, Cornell 
                            University Law School, U. S. A

2011-2014           Aid of Director, University of Hokkaido President's Office

2006-2014           Associate Member, Division of Law, The Science Council of Japan 

2010                   The Mori, Hamada & Matsumoto Distinguished Visitor, The Clarke Program in East Asian Law and Culture, Cornell University Law School, U.S.A.

2008                     Visiting Professor, School of Law, University of Wales, Swansea, U. K .   

2005-08                Chair, Academic Planning Committee, The Japan Association of Legal Philosophy

2004-08                Director, The Advanced Institute for Law & Politics, School of Law, University of Hokkaido

2005                      Visitor, Institute Suisse de Droit Comparé, Lausanne, Suisse                                          

2002-03                 Academic Affiliate, Centre for Politics, Law & Society, University College London, U.K. 
(The Ministry of Education Overseas Research Grant)                                                  

2002                      James B. MacDonald Distinguished Visiting Professor, East Asian Legal Studies Center, 
University of Wisconsin Law School, U.S.A.

1998                      Program Visitor, The Philosophy Program, Research School of Social Sciences, Australian  
    Naitonal University, AUSTRALIA                                                     

1987-88          Visiting Researcher, New York University Law School, U.S.A. (The Fulbright Grant)   

1986-87          Research Associate, Center for the Study of Law and Society, University of California,
Berkeley, U.S.A. (The Fulbright Grant)                                                     

1983-91          Associate Professor of Philosophy of Law, Faculty of Law, University of Hokkaido                                                     

1982            LL.D., Graduate School of Law and Politics, University of Tokyo 

1979                      LL.M., Graduate School of Law and Politics, University of Tokyo                              

1977                   LL.B., Faculty of Law, University of Tohoku

Fields of  Research

Theories of Equality and Rights, The Concept of Law, Theory of Value, The Creolization of Law

SSRN Author Page

Ko Hasegawa at SSRN

Ongoing Works

"The Common Good at a Local Level in the Arctic" (Work in progress: to be published from State University of Applied Sciences in Wloclawek, Poland, 2023)

"Human Dignity as a Global Common Good" (Work in progress: to be published by Springer Verlag, 2023)

"On Chiba Masashi's Law and Time " (Work in progress: to be published by Shinzansha, 2023)

The Interactive Grounds of Law" (Work in progress)

Main Publications

"The Possibility of the Human Right to Environment" (in: Giuliana Ziccardi Capaldo, ed., The Global Community Yearbook of Int'l Law and Jurisprudence 2021, Oxford U. P., 2022, pp. 57-89)

"The Fabric of Normative Translation in Law" (in: Helge Dedek, ed., A Cosmopolitan Jurisprudence: Essays in memory of H. Patrick Glenn, Cambridge U. P., 2021, pp.249-266) [original draft download]

"Outou [Response]" (in: N. Sugawara & S. Kaku, eds, Kousei na Hou wo Meguru Toi [Problems Concerning Law and Fairness]
, Shinzan-sha, 2021, pp. 281-314)

"On the Modes of Confluence in Law" (in: K. Boele-Woelki, eds., Current Issues of Comparative Law,   
              Springer, 2019, pp. 39-48)

"Interactive Reason in Law" (in:M. S. Sellers ed., Law, Reason, and Emotion, Cambridge U. P., 2017, pp. 184-201)

"How to Deal with the Multiplicity of Law" (in: ARSP Beiheft 152, pp. 97-104, 2017)

Hou no Konseiteki Datou [The Hybrid Validity of Law]" (in: Takeshi Tsunoda et. al., eds, Houriron wo Meguru
           Gendai teki Shomondai
[Current Problems Concerning Legal Theory], Koyo Shobo, 2016, pp. 203-211)

"The Dynamics of "Confluence" in a Legal System----Comments on H. Patrick Glenn's Insights on
            Legal Traditions" (in Transnational Legal Theory, Vol. 7: 1, 2016, pp. 1-8)

Normative Translation in the Heterogeneity of Law" (in: Transnational Legal Theory, Vol. 6: 3-4, 2015,
             pp.501-517) (at:

"Getting through National Responsibility toward Global Justice" (in: ARSP, Beiheft 139: Human Rights and
            Global Justice, Franz Steiner Verlag, 2014, pp. 81-87)

"Hou no Kureouru to Houteki Kannen no Honyaku [The Creole of Law and the Translation of Legal Ideas]"
            (in: Ko Hasedawa, ed., Hou no Kureouru Josetsu [Introduction to the Creole of Law], Hokkaido Univ.
             Press, 2012, pp. 1-32)

"How Can Law Hold Hope in Cultural Complexity? ーCritical Comments on Prof. Annelise Riles' View
             of Law and Culture" (at:, Cornell University Law School,
             2011) [download]

"21 Seiki no Hou no Gainen [The Concept of Law in the 21st Century]" (Hou no Riron [Theory of Law],
             No. 30, 2011)

"Between Rights and 'Kenri'" (in: E. Cashin-Retaine, ed., Legal Engineering and Comparative  Law, Vol. 2,   
             Schulthess, 2009, pp.87-103) [download]

"Incorporating Foreign Legal Ideas through Translation" (in: A. Halpin,, eds. Theorizing the Global Legal
, Hart Publishing, 2009, pp.85-106) [download]

"Kaishaku teki Houshikou no Kitei [The Basis of Hermeeutic Legal Thinking] (in: Aoi & Suehisa, eds.,
             Doitsu Houriron tono Taiwa [Dialogues with German Legal Theory], Tohoku University Press, 2008)  

"Hou no Kureouru no Gainen wo meguru Kisoteki Kousatsu [Fundamental Considerations concerning                    
              the Concept of the Creole of Law]" (in: Hokudai Hougaku Ronshuu [Hokkaido Law Review], Vol.58-3, 2007)

"Kihan Shoutotsu no Kaishakugaku [Hermeneutics of Norm Conflict]" (in: Hougaku [Jurisprudence],
               Vol.69-6, 2006)

"Human Well-being and Public Provision" (in: Hokudai Hougaku Ronshuu [Hokkaido Law Review],         
(Revised Version

"On Prof. Will Kymlicka’s Thinking about the Rights of Indigenous People” (in: Archiv für Rechts- und
, Beiheft 96, 2004)

"The Structuration of Law and Its Working in the Japanese Legal System" (in J. Vanderlinden, eds.,
               La Structure des Systèmes Juridiques, Bruylant, 2003) 

Kousei no Houtetsugaku [The Legal Philosophy of Fairness] (Shinzansha, 2001)

"Legal Reasoning & Interpretation of Justice" (in: Hokudai Hougaku Ronshuu [Hokkaido Law Review],
               Vol.48-5, 1998)  
Kaishaku to Houshikou [Interpretation and Legal Thinking]( Nihon Hyouronsha, 1996)      
Kenri・Kachi・Kyoudoutai [Rights, Values, and Community](Koubundou, 1991)

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[Last Updated: January 6, 2023]