Forward Citations = 121

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10 inventors (with patents filed for the assignee):

Akira Iida (3 out of 10 patents)

Kozo Tamura (2 out of 15 patents)

Yasuhiro Tsukamoto (2 out of 2 patents)

4. Syoichi Nihira (2 out of 3 patents)

5. Yasuyuki Hiruta (1 out of 5 patents)

6. Naruhiko Suzuki (1 out of 5 patents)

7. Yoshitaro Ishii (1 out of 24 patents)

8. Akira Iwao (1 out of 7 patents)

9. Toshiharu Kodato (1 out of 2 patents)

10. Thomas A Hauer (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 5042844 - Hose fixture device (1991-08-27),

2. 5006780 - Charging circuit (1991-04-09),

3. 4994726 - Power supply apparatus for charging-type device (1991-02-19),

4. 4994660 - Axisymmetric vectoring exhaust nozzle (1991-02-19),

Company Overview

Tagasangyo, Ltd. is a leading provider of innovative industrial solutions in Japan. With a wide range of products and services, we cater to various industries including manufacturing, construction, and logistics. Our team is dedicated to delivering high-quality solutions to meet the unique needs of our clients and ensure their success. Visit our website to learn more about our offerings and how we can assist your business.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#10 in Hitachi

#7,573 in Japan

Hitachi, Japan

Tagasangyo, Ltd.

Forward Citations = 121

10 inventors:

Akira Iida (3 out of 10 patents)

Kozo Tamura (2 out of 15 patents)

Yasuhiro Tsukamoto (2 out of 2 patents)

4. Syoichi Nihira (2 out of 3 patents)

5. Yasuyuki Hiruta (1 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tagasangyo, Ltd.. Retrieved from https://idiyas.com/company/tagasangyo

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]