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3 inventors (with patents filed for the assignee):

Shiro Kawaguchi (1 out of 5 patents)

Kensaku Shimoda (1 out of 1 patent)

Masayoshi Minegishi (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 12761422 - Rotary joint and optical measurement device using the same (2026-10-13),

2. 12572112 - Optical measurement system and optical measurement method (2026-03-10),

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USPTO Data Jan 1 1976 - Oct 20 2026

2 Patents

#1,147 in Osaka

#11,139 in Japan

Osaka, Japan

Otsuka Electronics Co., Ltd.

Forward Citations = 0

3 inventors:

Shiro Kawaguchi (1 out of 5 patents)

Kensaku Shimoda (1 out of 1 patent)

Masayoshi Minegishi (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Otsuka Electronics Co., Ltd.. Retrieved from https://idiyas.com/company/otsuka-electronics

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]