% Expired Patents = 100.0

Forward Citations = 62

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2 inventors (with patents filed for the assignee):

Tatsutoshi Suzuki (8 out of 14 patents)

Eisuke Suzuki (1 out of 7 patents)

8 patents: Sort by Forward Citations

1. 8992288 - Polishing pad auxiliary plate and polishing device equipped with polishing pad auxiliary plate (2015-03-31),

2. 7867066 - Polishing pad (2011-01-11),

3. 7516536 - Method of producing polishing pad (2009-04-14),

4. 7140088 - Turning tool for grooving polishing pad, apparatus and method of producing polishing pad using the tool, and polishing pad produced by using the tool (2006-11-28),

5. 7121938 - Polishing pad and method of fabricating semiconductor substrate using the pad (2006-10-17),

6. 7104868 - Turning tool for grooving polishing pad, apparatus and method of producing polishing pad using the tool, and polishing pad produced by using the tool (2006-09-12),

7. 7017246 - Turning tool for grooving polishing pad, apparatus and method of producing polishing pad using the tool, and polishing pad produced by using the tool (2006-03-28),

8. 6869343 - Turning tool for grooving polishing pad, apparatus and method of producing polishing pad using the tool, and polishing pad produced by using the tool (2005-03-22),

Company Overview

Toho Engineering Kabushiki Kaisha is a leading Japanese engineering company that specializes in providing comprehensive design, engineering, and construction services for a wide range of industries including energy, infrastructure, and environmental sectors. With over 70 years of experience, Toho Engineering has a proven track record of delivering high-quality and innovative solutions to meet the needs of its clients.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

8 Patents

#5 in Yokkaichi

#5,049 in Japan

Yokkaichi, Japan

Toho Engineering Kabushiki Kaisha

Forward Citations = 62

2 inventors:

Tatsutoshi Suzuki (8 out of 14 patents)

Eisuke Suzuki (1 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Toho Engineering Kabushiki Kaisha. Retrieved from https://idiyas.com/company/toho-engineering-kabushiki-kaisha

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]