Kowa Company Limited, headquartered in Nagoya, Japan, specializes in ophthalmic technologies, focusing on the development and manufacturing of advanced medical devices. The company is recognized for its innovations in intraocular lenses, image processing, and glaucoma testing, contributing significantly to eye care solutions. Kowa also engages in tear fluid analysis and the production of pharmaceutical compositions, enhancing diagnostic and therapeutic capabilities in ophthalmology. Its commitment to research and development positions it as a key player in the global ophthalmic market.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

605 Patents

#5 in Nagoya

#333 in Japan

#1,616 in the World

Nagoya, Japan

Kowa Company Limited

Forward Citations = 5,040

589 inventors:

Kimiyuki Shibuya (43 out of 43 patents)

Tadaaki Ohgiya (32 out of 32 patents)

Seiichi Sato (30 out of 52 patents)

4. Yoshinori Kyotani (27 out of 27 patents)

5. Masahiro Tamura (25 out of 115 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kowa Company Limited. Retrieved from https://idiyas.com/company/kowa-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]

6 patents (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]

181 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]