Forward Citations = 3

Loading Chart...

7 inventors (with patents filed for the assignee):

Kohei Kubota (1 out of 4 patents)

Kazuo Hirano (1 out of 23 patents)

Taiji Kambayashi (1 out of 12 patents)

4. Toshitake Nagai (1 out of 10 patents)

5. Koiti Nagata (1 out of 1 patent)

6. Yasumasa Sugiyama (1 out of 1 patent)

7. Haruhiko Tanaka (1 out of 1 patent)

1 patent: Sort by Forward Citations

#1 in Oizumi

#15,759 in Japan

Ohtsuka; Masahisa

Forward Citations = 3

7 inventors:

Kohei Kubota (1 out of 4 patents)

Kazuo Hirano (1 out of 23 patents)

Taiji Kambayashi (1 out of 12 patents)

4. Toshitake Nagai (1 out of 10 patents)

5. Koiti Nagata (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ohtsuka; Masahisa. Retrieved from https://idiyas.com/company/ohtsuka-masahisa

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]