English Profile

Kaori Ishii


Kaori Ishii is a Professor in Chuo University, Faculty of Global Informatics from April 2019. She was a Visiting Professor in the Department of Law & Business, Ryerson University from 2016 to 2017.

Prior to joining Chuo University, she had worked as a lawyer, in-house counsel, and a scholar in Japan. She served as an attorney at law from 1999 to 2001 and worked for the legal department of a large manufacturing company from 2001 to 2004. Later, she was placed at the Institute of Information Security and promoted from Assistant Professor to Associate Professor between 2004 and 2010. During this time, in 2007, she earned her Ph.D. in Law from Chuo University, Graduate School of Law, Department of International Law and Business. She held her position as an Associate Professor at University of Tsukuba, Faculty of Library, Information and Media Science from 2010.

Her research interests focus on legal issues surrounding data protection and privacy among countries, and her research area includes a comparative analysis in data protection legislations, searching for insights into the right of privacy and considering how to harmonize current technological advancements and privacy. She currently intends to extend her research area in the right of privacy and its legislations in Canada.

She has contributed much in her role as a member of many expert committees in the Cabinet Secretariat, Ministries, and local governments in Japan. She has also served as a commentator in some media.

She serves as an editorial board member of the Global Privacy Law Review from 2019.

Select Research and Professional Contributions

Written in Japanese

EU Data Protection Laws (Keiso Publishing, 2020).

-Taro Komukai and Kaori Ishii, An Overview of the GDPR: the Powerful Impact on Global Personal Information Protection Systems (NTT Publishing, 2019)

The revised version of Present and the Future of Laws on the Protection of Personal Data: The World Surroundings and the Future Prospect in Japan (Keiso Publishing, 2017).

The Present and the Future of Laws on the Protection of Personal Data: The World Surroundings and the Future Prospect in Japan (Keiso Publishing, 2014).

The Doctrine and Current Issues of Laws on the Protection of Personal Data: From the Historical Development and International Viewpoints (Keiso Publishing, 2008).


The Right of Privacy, Academic Research in Jurist (August, 2016).

The Meanings of the “Right to Be Forgotten” and Surrounding Discussions, 58-4 Journal of Information Processing and Management 271 (July 2015).

The abstract in English cites here.
Current Legal Situations on Protecting Privacy in the United States, 55-12 Journal of Information Processing Society of Japan 1346 (November 2014).

International Negotiations on the Issues of Privacy, 8 Journal for Information and Communications Policy 54 (March 2014).

Making Use of Big Data and Its Restriction, 1464 Jurist 32 (March 2014).

Written in English


– Kaori Ishii, Japan: new interpretations on, and amendments to existing laws, Privacy Laws and Business (2024), issue 187,  pp.16-18.

– Kaori Ishii, ‘Advancements in the Personal Information Protection System in Japan’, (2020), 1, Global Privacy Law Review, Issue 3, pp. 164-172.

– Kaori Ishii, Tracing Apps, Privacy, and Protection of Personal Information, Chuo Online (Jul. 29, 2020).

-Ishii K. (2018) Discussions on the Right to Data Portability from Legal Perspectives. In: Kreps D., Ess C., Leenen L., Kimppa K. (eds) This Changes Everything – ICT and Climate Change: What Can We Do?. HCC13 2018. IFIP Advances in Information and Communication Technology, vol 537. Springer, Cham

*Some errors have been found after the publication. The corrections are as below:
– (1) Is the right to data portability in the EU General Data Protection Regulation (GDPR) effective? in the Abtsract;
– Hecht case at pages 6 and 17;
– Articles 81 (ex 85) at page 7;
– IMS Health (2004) at page 8;
– [40,pp. 382-383] at the footnote 28 of page 9;
– Engels B (2016) Internet Policy Review 5(2) at the footnote 55 of page 18.

-Ishii, K., Comparative legal study on privacy and personal data protection for robots equipped with artificial intelligence: looking at functional and technological aspects, AI & Soc (2017).

– Kaori Ishii, Japanese Supreme Court decision on the removal of search engine results, Leading Internet Case Law 24-25 (March-April 2017).

– Kaori Ishii, The Japanese Personal Information Protection Commission’s latest regulation and guidelines, Data Protection Leader 17-19 (January 2017).

– Kaori Ishii and Taro Komukai, A Comparative Legal Study on Data Breaches
in Japan, the U.S., and the U.K., IN TECHNOLOGY AND INTIMACY: CHOICE OR COERCION 86-105 (David Kreps, Gordon Fletcher, and Marie Griffiths ed., 2016).


The Personal Data Protection (PDP) Seminar 2017 panel discussion on “Facilitating International Data Flows for a Secure Digital Economy” in Singapore
July 20, 2017

The 3rd Asia Privacy Bridge Forum 2017 Spring at Yonsei University in Korea
June 27, 2017

CIPL’s Privacy Workshop on “Japan’s New Data Privacy Regime and How it Will Enable Cross-Border Data Flows, Innovation and Privacy Protections in the Modern Information Age” on 11 May 2017.

Does Privacy Exist in the Age of Big Data?
A talk event in Japan Foundation, Toronto, Canada on March 3 2017.


The courses she taught at the University of Tsukuba:

Legal Study on Internet Issues (for graduate students speaking English)

Information Society and Relevant Legislative Systems (for undergraduate students)

Information Law (for undergraduate students)

Research Funding

Comparative Legal and Operational Analysis on Illegal Obtaining and Disseminating of Personal Data, JSPS KAKENHI (C) Grant Number 15K03237 

Honours & Awards

– Best Faculty Member Award at the University of Tsukuba in Feb. 2013

– Incentive Award in the field of Social Sciences from Mobile Communication Fund in Sep. 2011.

– Incentive Award in the field of Telecom Social Sciences from Telecommunications Advancement Foundation in Mar. 2011.