% Expired Patents = 50.0

Forward Citations = 47

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8 inventors (with patents filed for the assignee):

Hisayoshi Sato (1 out of 24 patents)

Masashi Takahashi (1 out of 94 patents)

Dai Watanabe (1 out of 23 patents)

4. Kunihiko Miyazaki (1 out of 23 patents)

5. Kazuo Takaragi (1 out of 67 patents)

6. Soichi Furuya (1 out of 7 patents)

7. Hiroyuki Kurumatani (1 out of 10 patents)

8. Masaru Sanada (1 out of 15 patents)

2 patents: Sort by Forward Citations

#4,361 in Tokyo

#11,124 in Japan

Forward Citations = 47

8 inventors:

Hisayoshi Sato (1 out of 24 patents)

Masashi Takahashi (1 out of 94 patents)

Dai Watanabe (1 out of 23 patents)

4. Kunihiko Miyazaki (1 out of 23 patents)

5. Kazuo Takaragi (1 out of 67 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tokyo, Japan. Retrieved from https://idiyas.com/company/tokyo-japan

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]