% Expired Patents = 33.3

Forward Citations = 0

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7 inventors (with patents filed for the assignee):

Mutsumi Kimura (3 out of 59 patents)

Yoshinori Miyamae (2 out of 3 patents)

Sumio Sugisaki (1 out of 1 patent)

4. Takashi Aoki (1 out of 33 patents)

5. Takashi Nakanishi (1 out of 1 patent)

6. Mariko Sakemi (1 out of 1 patent)

7. Isato Ogawa (1 out of 1 patent)

3 patents: Sort by Forward Citations

#5 in Otsu

#8,932 in Japan

Ryukoku University

Forward Citations = 0

7 inventors:

Mutsumi Kimura (3 out of 59 patents)

Yoshinori Miyamae (2 out of 3 patents)

Sumio Sugisaki (1 out of 1 patent)

4. Takashi Aoki (1 out of 33 patents)

5. Takashi Nakanishi (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ryukoku University. Retrieved from https://idiyas.com/company/ryukoku-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]