Forward Citations = 1

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11 inventors (with patents filed for the assignee):

Yasushi Sasagawa (1 out of 1 patent)

Yuichi Hirokawa (1 out of 1 patent)

Hiroshi Saito (1 out of 5 patents)

4. Takumi Abe (1 out of 1 patent)

5. Shunsuke Sakuma (1 out of 1 patent)

6. Yuki Ogiue (1 out of 1 patent)

7. Satoshi Koike (1 out of 1 patent)

8. Mitsuru Otaki (1 out of 1 patent)

9. Hiroto Kanda (1 out of 1 patent)

10. Suguru Machiya (1 out of 1 patent)

11. Hifumi Okada (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 10926344 - Taper reamer (2021-02-23),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

1 Patents

#73 in Niigata

#15,759 in Japan

Niigata, Japan

Ishii Corporation Co., Ltd.

Forward Citations = 1

11 inventors:

Yasushi Sasagawa (1 out of 1 patent)

Yuichi Hirokawa (1 out of 1 patent)

Hiroshi Saito (1 out of 5 patents)

4. Takumi Abe (1 out of 1 patent)

5. Shunsuke Sakuma (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ishii Corporation Co., Ltd.. Retrieved from https://idiyas.com/company/ishii-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]