Forward Citations = 1

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8 inventors (with patents filed for the assignee):

Makoto Hosokawa (1 out of 5 patents)

Yohei Maruyama (1 out of 3 patents)

Atsushi Koike (1 out of 60 patents)

4. Ryuichi Sato (1 out of 9 patents)

5. Misato Mizoguchi (1 out of 3 patents)

6. Toshiyuki Shimizu (1 out of 2 patents)

7. Shinya Hiraoka (1 out of 1 patent)

8. Hiroto Iida (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 12558884 - Method for producing laminate and heating element, and defroster (2026-02-24),

2. 9318339 - Polishing slurry and polishing method (2016-04-19),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

2 Patents

#4,366 in Tokyo

#11,133 in Japan

Tokyo, Japan

Mitsui Mining & Smelting, Ltd

Forward Citations = 1

8 inventors:

Makoto Hosokawa (1 out of 5 patents)

Yohei Maruyama (1 out of 3 patents)

Atsushi Koike (1 out of 60 patents)

4. Ryuichi Sato (1 out of 9 patents)

5. Misato Mizoguchi (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Mitsui Mining & Smelting, Ltd. Retrieved from https://idiyas.com/company/mitsui-mining-and-smelting

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]