Fujikin Inc., headquartered in Osaka, Japan, specializes in the development and manufacturing of fluid control devices. The company focuses on advanced technologies related to valves, pressure sensors, and flow rate control systems, catering to a variety of industries that require precise fluid management. Their expertise extends to diaphragm and electromagnetic valves, as well as solutions for fluid supply, density measurement, and concentration measurement, ensuring high performance and reliability in critical applications.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

450 Patents

#47 in Osaka

#407 in Japan

#2,122 in the World

Osaka, Japan

Fujikin Inc.

Forward Citations = 3,489

317 inventors:

Nobukazu Ikeda (183 out of 211 patents)

Kouji Nishino (140 out of 155 patents)

Michio Yamaji (123 out of 142 patents)

4. Tsutomu Shinohara (114 out of 121 patents)

5. Ryousuke Dohi (85 out of 95 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Fujikin Inc.. Retrieved from https://idiyas.com/company/fujikin

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 (CIPO):

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]

8 patents (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]