Forward Citations = 2

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7 inventors (with patents filed for the assignee):

Masaharu Asano (1 out of 21 patents)

Masaru Yoshida (1 out of 78 patents)

Isao Kaetsu (1 out of 34 patents)

4. Keizo Shida (1 out of 3 patents)

5. Hidetoshi Yamanaka (1 out of 3 patents)

6. Katsuyuki Nakai (1 out of 3 patents)

7. Akira Shiraishi (1 out of 2 patents)

1 patent: Sort by Forward Citations

#48 in Gunma

#15,745 in Japan

Keizo Shida

Forward Citations = 2

7 inventors:

Masaharu Asano (1 out of 21 patents)

Masaru Yoshida (1 out of 78 patents)

Isao Kaetsu (1 out of 34 patents)

4. Keizo Shida (1 out of 3 patents)

5. Hidetoshi Yamanaka (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Keizo Shida. Retrieved from https://idiyas.com/company/keizo-shida

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]