Sumitomo Electric Optifrontier Co., Ltd. is a prominent player in the field of optical communication technologies, specializing in the development and manufacturing of advanced optical fibers and related components. The company focuses on enhancing communication infrastructure through innovative solutions that support high-speed data transmission. Based in Yokohama, Japan, it leverages cutting-edge research to address the evolving demands of telecommunications and data networks, contributing to the global advancement of optical technology.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

18 Patents

#57 in Yokohama

#3,123 in Japan

#34,217 in the World

Yokohama, Japan

Sumitomo Electric Optifrontier Co., Ltd.

Forward Citations = 1

39 inventors:

Kazuyoshi Ooki (5 out of 20 patents)

Shinsuke Kurino (4 out of 11 patents)

Takahiro Suwa (4 out of 4 patents)

4. Masahiro Shibata (3 out of 86 patents)

5. Kazufumi Joko (3 out of 15 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sumitomo Electric Optifrontier Co., Ltd.. Retrieved from https://idiyas.com/company/sumitomo-electric-optifrontier

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]

7 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]