% Expired Patents = 100.0

Forward Citations = 0

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5 inventors (with patents filed for the assignee):

Toshikazu Nanbu (1 out of 16 patents)

Kazuhiko Takashima (1 out of 9 patents)

Kazunori Sakata (1 out of 1 patent)

4. Kouji Tagomori (1 out of 1 patent)

5. Naoki Sugiyama (1 out of 1 patent)

1 patent: Sort by Forward Citations

#26 in Kitakyushu

#15,745 in Japan

Fujikikosan Corporation

Forward Citations = 0

5 inventors:

Toshikazu Nanbu (1 out of 16 patents)

Kazuhiko Takashima (1 out of 9 patents)

Kazunori Sakata (1 out of 1 patent)

4. Kouji Tagomori (1 out of 1 patent)

5. Naoki Sugiyama (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Fujikikosan Corporation. Retrieved from https://idiyas.com/company/fujikikosan

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]