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Forward Citations = 89

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12 inventors (with patents filed for the assignee):

Takayuki Tani (2 out of 2 patents)

Chihiro Hayashi (1 out of 34 patents)

Shigeru Tajima (1 out of 4 patents)

4. Masao Tatsuwaki (1 out of 2 patents)

5. Shin Nemoto (1 out of 3 patents)

6. Yutaka Katayama (1 out of 1 patent)

7. Kazuyuki Hotta (1 out of 1 patent)

8. Michio Okada (1 out of 1 patent)

9. Katsuya Kondo (1 out of 5 patents)

10. Masayuki Taga (1 out of 2 patents)

11. Takeo Aoki (1 out of 3 patents)

12. Kaoru Shimme (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 4470282 - Method of piercing in seamless tube manufacturing (1984-09-11),

2. 4460852 - Method of controlling mill motors speeds in a cold tandem mill (1984-07-17),

3. 4426224 - Lance for powder top-blow refining and process for decarburizing and (1984-01-17),

4. 4365307 - Temperature pattern measuring device (1982-12-21),

5. 4250374 - Process and apparatus for the surface heat treatment of steel products (1981-02-10),

6. 4250372 - Process and apparatus for the heat treatment by high energy beams of (1981-02-10),

Sumitomo Kinzoku Kogyo Kabushiki Gaisha, also known as Sumitomo Metal Mining Co., Ltd., is a leading Japanese company engaged in the mining, smelting, refining, and manufacturing of non-ferrous metals. The company offers a wide range of products and services, including copper, nickel, gold, and silver products, as well as environmental and recycling services. With a strong commitment to sustainability and innovation, Sumitomo Kinzoku Kogyo Kabushiki Gaisha is dedicated to creating value for its customers and contributing to a sustainable society.

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USPTO Data Jan 1 1976 - Dec 9 2025

6 Patents

#562 in Osaka

#5,840 in Japan

Osaka, Japan

Sumitomo Kinzoku Kogyo Kabushiki Gaisha