Company Badge
USPTO Data Jan 1 1976 - Oct 20 2026
4 Patents
#124 in Saitama 343-0827
#7,588 in Japan
Sanwa Seiki Ltd.
Forward Citations = 6
5 inventors:
Sanwa Seiki Ltd.
Calculating rank
Trademarks = 1
Forward Citations = 6
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5 inventors (with patents filed for the assignee):
Kazunari Imasato (4 out of 6 patents)
Isao Okamoto (2 out of 7 patents)
Jun Kajinami (2 out of 2 patents)
4. Hitoshi Muto (2 out of 2 patents)
5. Keiichi Kazumori (2 out of 2 patents)
4 patents:
Company Overview
Sanwa Seiki Ltd. is a leading manufacturer of precision valve products for a wide range of industries including semiconductor, pharmaceutical, and food processing. With over 50 years of experience, the company has a reputation for high-quality products and excellent customer service. They offer a variety of valve solutions, including diaphragm valves, ball valves, and butterfly valves, designed to meet the unique needs of their customers.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sanwa Seiki Ltd.. Retrieved from https://idiyas.com/company/sanwa-seiki
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]
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]
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]