Okamura Laboratory, Inc.

Calculating rank

USPTO Granted Patents = 3

% Expired Patents = 33.3

Forward Citations = 56

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4 inventors (with patents filed for the assignee):

Michio Okamura (3 out of 31 patents)

Takeshi Morimoto (2 out of 80 patents)

Kazuya Hiratsuka (2 out of 42 patents)

4. Masaaki Yamagishi (1 out of 6 patents)

3 patents: Sort by Forward Citations

1. 6885170 - Connection-switched capacitor storage system (2005-04-26),

2. 5604426 - Electric apparatus with a power supply including an electric double (1997-02-18),

3. 5545933 - Electric power storage apparatus (1996-08-13),

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USPTO Data Jan 1 1976 - Nov 3 2026

3 Patents

#314 in Kanagawa

#8,945 in Japan

Kanagawa, Japan

Okamura Laboratory, Inc.

Forward Citations = 56

4 inventors:

Michio Okamura (3 out of 31 patents)

Takeshi Morimoto (2 out of 80 patents)

Kazuya Hiratsuka (2 out of 42 patents)

4. Masaaki Yamagishi (1 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Okamura Laboratory, Inc.. Retrieved from https://idiyas.com/company/okamura-laboratory

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]