% Expired Patents = 50.0

Trademarks = 1

Forward Citations = 48

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4 inventors (with patents filed for the assignee):

Eiichi Nishimura (1 out of 84 patents)

Shimao Yoneyama (1 out of 1 patent)

Norio Noguchi (1 out of 1 patent)

4. Toshiyuki Fukuzawa (1 out of 1 patent)

2 patents: Sort by Forward Citations

#1 in Kai

#11,139 in Japan

Meiko Co., Ltd.

Forward Citations = 48

4 inventors:

Eiichi Nishimura (1 out of 84 patents)

Shimao Yoneyama (1 out of 1 patent)

Norio Noguchi (1 out of 1 patent)

4. Toshiyuki Fukuzawa (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Meiko Co., Ltd.. Retrieved from https://idiyas.com/company/meiko-company

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]