% Expired Patents = 75.0

EPO Patents = 2

Forward Citations = 5

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18 inventors (with patents filed for the assignee):

Hiromitsu Takayama (2 out of 6 patents)

Mariko Kitajima (2 out of 2 patents)

Kenjiro Matsumoto (2 out of 2 patents)

4. Syunji Horie (2 out of 2 patents)

5. Shuji Sato (1 out of 3 patents)

6. Takeshi Goto (1 out of 3 patents)

7. Toshiaki Nakano (1 out of 1 patent)

8. Naoya Ohmori (1 out of 1 patent)

9. Kueichen Chiang (1 out of 1 patent)

10. Yayoi Shimada (1 out of 1 patent)

11. Kenji Mori (1 out of 1 patent)

12. Takamitsu Miyagi (1 out of 2 patents)

13. Shigeru Goto (1 out of 3 patents)

14. Toshinobu Seki (1 out of 2 patents)

15. Yasunori Morimoto (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 9701739 - Monoclonal antibody having immunosuppressive activity or antigen binding fragment thereof (2017-07-11),

2. 8648090 - Indole alkaloid derivatives having opioid receptor agonistic effect, and therapeutic compositions and methods relating to same (2014-02-11),

3. 8247428 - Indole alkaloid derivatives having opioid receptor agonistic effect, and therapeutic compositions and methods relating to same (2012-08-21),

4. 5248674 - Percutaneous administration of 3'-azide'-deoxythymidine (1993-09-28),

Company Overview

Josai University Corporation is a comprehensive educational institution that operates a university, junior college, high school, and kindergarten. Founded in 1965, it offers a wide range of programs in various fields of study, including business, economics, humanities, and social sciences. The corporation is committed to providing students with a high-quality education and preparing them for success in their future careers.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

4 Patents

#3,053 in Tokyo

#7,579 in Japan

Tokyo, Japan

Josai University Corporation

Forward Citations = 5

18 inventors:

Hiromitsu Takayama (2 out of 6 patents)

Mariko Kitajima (2 out of 2 patents)

Kenjiro Matsumoto (2 out of 2 patents)

4. Syunji Horie (2 out of 2 patents)

5. Shuji Sato (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Josai University Corporation. Retrieved from https://idiyas.com/company/josai-university

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

2 patents (EPO):

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]