Sanno Park Tower 12F (Reception) and 14F,
11-1, Nagatacho 2-chome, Chiyoda-ku,
Tokyo 100-6114, Japan

Tokyo Metro Ginza Line: G06 Tameike-sanno Station, Exit 7 (directly accessible through the second basement)

Tokyo Metro Nanboku Line: N06 Tameike-sanno Station, Exit 7 (directly accessible through the second basement)

Tokyo Metro Chiyoda Line: C07 Kokkai-gijido-mae Station, Exit 5 (3 minutes’ walk)

Tokyo Metro Marunouchi Line: M14 Kokkai-gijido-mae Station, Exit 5 (10 minutes’ walk through Chiyoda Line platform)

Senior Associates

Mitsuya Kosaka

Mitsuya Kosaka

TEL +81-3-5511-3225 / FAX +81-3-5511-3258

Languages
Japanese、English
Bar Association /
Qualification
Japan (2014)

Background

2011
The University of Tokyo (LL.B)
2013
Chuo Law School (J.D.)
2014
Admitted in Japan (Dai-ni Tokyo Bar Association)
Ushijima & Partners

Special lecturer at Faculty of Commerce of Chuo University (until 2019)

Certified Information Privacy Professional/Europe (CIPP/E), 2023

Registered Information Security Specialist (RISS), 2024

Publications

“The Amended Act on the Protection of Personal Information and Business Practice” (SEIBUNSHA, June 2017)

Articles, etc.

“Vital Points for Addressing the Amended Personal Information Protection Act to Take Effect in 2022” (December 2021 issue of Resonare)
“Points When Introducing Electronic Contracts Based on Their Features” (“Intellectual Property Management” magazine, August 20, 2021)
“Utilization of ‘Examples of Efforts for Preventing Corporate Scandals’ Aimed at Effective Whistleblowing System” (“BUSINESS LAWYERS,” February 18, 2020)
“What is Certification Concerning Internal Reporting Systems? The Advantages of Obtaining the Certification and the Standards for the Certification” (BUSINESS LAWYERS, August 6, 2019)
“Specific Points for Obtaining Certification Concerning Internal Reporting Systems” (BUSINESS LAWYERS, August 6, 2019)
“Specific Measures (Such as Whistleblowing System) and Practical Points for Early Detection of Misconduct” (“BUSINESS LAWYERS,” May 8, 2019)
“Points for Practically Reviewing a Whistleblowing System Based on Guidelines” (“BUSINESS LAWYERS,” May 8, 2019)
“Characteristics and points of the sale of business by auctions adopted by Toshiba in the sale of its semiconductor memory business” (“BUSINESS LAWYERS,” June 27, 2017)

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Lectures Given

“Commentary on, and Points for Addressing, the Amendment to the Guidelines for Constructing and Operating P-Mark System (coming into force on October 1, 2024)” (Part 1 – Part 3) (FRONTEO, May 14, 2024 -)
“Commentary on, and Practical Measures to Address, New Guidelines for System Construction and Operation in Conformity with ‘JIS Q 15001:2023’” (U&P Legal Seminar, February 2 – September 30, 2024)
“[Effective April 2022] Points of the Amended Personal Information Protection Act and How to Address the Amendment” (Legaledge, January 27, 2022)
“Matters to Examine and Matters to Note in Introducing E-Contracts” (Legaledge, November 25, 2021)
“Matters to Note Regarding Publication of Scandals and Practical Measures to Prevent Information Leaks in Relation to Working from Home” (FRONTEO, June 12, 2020)
“Patterns of How Misconduct/Scandals Are Discovered in Real Cases and Specific Measures to Discover Them Promptly” (FRONTEO, April 27, 2020)
“Seminar on Measures Addressing the Amended Act on the Protection of Personal Information by Small and Medium Enterprises” (Ome Chamber of Commerce and Industry, May 16, 2017)

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News

Part eleven in a series of articles concerning information security measures, written by Hiroyasu Kageshima and Mitsuya Kosaka, was published in Romu Jijo.

Part ten in a series of articles concerning information security measures, written by Hiroyasu Kageshima and Mitsuya Kosaka, was published in Romu Jijo.

Part nine in a series of articles concerning information security measures, written by Hiroyasu Kageshima and Mitsuya Kosaka, was published in Romu Jijo.

Part eight in a series of articles concerning information security measures, written by Hiroyasu Kageshima and Mitsuya Kosaka, was published in Romu Jijo.

Part seven in a series of articles concerning information security measures, written by Hiroyasu Kageshima and Mitsuya Kosaka, was published in Romu Jijo.

Part six in a series of articles concerning information security measures, written by Hiroyasu Kageshima and Mitsuya Kosaka, was published in Romu Jijo.

Part five in a series of articles concerning information security measures, written by Hiroyasu Kageshima and Mitsuya Kosaka, was published in Romu Jijo.

Part four in a series of articles concerning information security measures, written by Hiroyasu Kageshima and Mitsuya Kosaka, was published in Romu Jijo.

Mitsuya Kosaka delivered a lecture on the amended Personal Information Protection Act.

Part three in a series of articles concerning information security measures, written by Hiroyasu Kageshima and Mitsuya Kosaka, was published in Romu Jijo.

An article on the amended Personal Information Protection Act, written by Hiroyasu Kageshima and Mitsuya Kosaka, was published in “Resonare” magazine.

Part two in a series of articles concerning information security measures, written by Hiroyasu Kageshima and Mitsuya Kosaka, was published in Romu Jijo.

Mitsuya Kosaka delivered a lecture on matters to examine and matters to note in introducing e-contracts.

Part one in a series of articles concerning information security measures, written by Hiroyasu Kageshima and Mitsuya Kosaka, was published in Romu Jijo.

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