% Expired Patents = 100.0

CIPO Patents = 1

Forward Citations = 1

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5 inventors (with patents filed for the assignee):

Takafumi Ito (1 out of 17 patents)

Tadashi Kamada (1 out of 5 patents)

Osamu Katayama (1 out of 8 patents)

4. Minoru Okada (1 out of 24 patents)

5. Hiroshi Uesugi (1 out of 9 patents)

6. Kenji Masuda (0 patent)

7. Koichi Takahashi (0 patent)

8. Minoru Okada (0 patent)

9. Kazuki Matsumoto (0 patent)

1 patent: Sort by Forward Citations

#26 in Kitakyushu

#15,759 in Japan

Minoru Okada

Forward Citations = 1

5 inventors:

Takafumi Ito (1 out of 17 patents)

Tadashi Kamada (1 out of 5 patents)

Osamu Katayama (1 out of 8 patents)

4. Minoru Okada (1 out of 24 patents)

5. Hiroshi Uesugi (1 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Minoru Okada. Retrieved from https://idiyas.com/company/minoru-okada

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]

1 patent (CIPO):

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]