Kabushiki Kaisha Copal

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USPTO Granted Patents = 3

Trademarks = 1

Forward Citations = 40

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3 inventors (with patents filed for the assignee):

Hiroyuki Shingai (2 out of 9 patents)

Yukihide Umeda (1 out of 2 patents)

Yasuo Ishiguro (1 out of 16 patents)

3 patents: Sort by Forward Citations

1. 6126395 - Axial fan (2000-10-03),

2. 6065936 - Axial fan, method of manufacturing impeller for axial fan, and mold for (2000-05-23),

3. 4358191 - Exposure rate controlling mechanism for camera (1982-11-09),

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USPTO Data Jan 1 1976 - Oct 27 2026

3 Patents

#3,552 in Tokyo

#8,938 in Japan

Tokyo, Japan

Kabushiki Kaisha Copal

Forward Citations = 40

3 inventors:

Hiroyuki Shingai (2 out of 9 patents)

Yukihide Umeda (1 out of 2 patents)

Yasuo Ishiguro (1 out of 16 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kabushiki Kaisha Copal. Retrieved from https://idiyas.com/company/kabushiki-kaisha-copal

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]