EPO Patents = 1

Forward Citations = 2

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5 inventors (with patents filed for the assignee):

Kenichi Maeda (1 out of 64 patents)

Kenji Takaoka (1 out of 1 patent)

Takao Yano (1 out of 1 patent)

4. Masayasu Iwashima (1 out of 1 patent)

5. Zhichen Geng (1 out of 1 patent)

1 patent: Sort by Forward Citations

#6,102 in Tokyo

#15,759 in Japan

Pijin Co. Ltd.

Forward Citations = 2

5 inventors:

Kenichi Maeda (1 out of 64 patents)

Kenji Takaoka (1 out of 1 patent)

Takao Yano (1 out of 1 patent)

4. Masayasu Iwashima (1 out of 1 patent)

5. Zhichen Geng (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Pijin Co. Ltd.. Retrieved from https://idiyas.com/company/pijin-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]

1 patent (EPO):

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]