Trademarks = 1

Forward Citations = 141

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2 inventors (with patents filed for the assignee):

Masami Miura (7 out of 20 patents)

Sueo Miyahara (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. D449961 - Cup for beverages or food (2001-11-07),

2. D444672 - Cup for beverages or foods (2001-07-11),

3. D443477 - Cup for beverages or food (2001-06-13),

4. D443476 - Cup for beverages or foods (2001-06-13),

5. D443475 - Cup for beverages or food (2001-06-13),

6. D434825 - Combined putting practice device and divot repair tool (2000-12-05),

7. D424151 - Combined putting practice device and divot repair tool (2000-05-02),

8. D326937 - Agitator ball for use in washing machines (1992-06-09),

Company Overview

San-ai Corporation is a Japanese company specializing in construction and civil engineering projects. Established in 1926, they have a long history of delivering high-quality solutions for clients in various industries. Their expertise includes building construction, renovation, and infrastructure development. San-ai Corporation is known for their commitment to excellence and innovative approach to problem-solving.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

8 Patents

#2,150 in Tokyo

#5,045 in Japan

Tokyo, Japan

San-Ai Corporation

Forward Citations = 141

2 inventors:

Masami Miura (7 out of 20 patents)

Sueo Miyahara (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: San-Ai Corporation. Retrieved from https://idiyas.com/company/san-ai

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]