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Sumitomo Kinzoku Kogyo Kabushiki Kaisha

USPTO Granted Patents = 22

Forward Citations = 257

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53 inventors (with patents filed for the assignee):

Takashi Yamaguchi (2 out of 15 patents)

Kazuo Sasaki (2 out of 6 patents)

Tetsuya Hirota (2 out of 6 patents)

4. Wataru Furukawa (2 out of 3 patents)

5. Mitsuo Yoshida (2 out of 2 patents)

6. Jiro Satake (2 out of 2 patents)

7. Tetsuzo Arai (2 out of 2 patents)

8. Yoshihisa Fujii (2 out of 2 patents)

9. Yasuyuki Furukawa (2 out of 2 patents)

10. Hitoshi Tanaka (2 out of 2 patents)

11. Moriki Hashio (2 out of 2 patents)

12. Tomohiko Kimura (2 out of 2 patents)

13. Shin Nemoto (2 out of 3 patents)

14. Chihiro Hayashi (1 out of 34 patents)

15. Toshiyuki Oki (1 out of 2 patents)

22 patents: Sort by Forward Citations

1. 4598998 - Screw surface flaw inspection method and an apparatus therefor (1986-07-08),

2. 4506197 - Method of controlling mill motors speeds in a cold tandem mill (1985-03-19),

3. 4500577 - Metal pipe coated with thermoplastic synthetic resin (1985-02-19),

4. 4450004 - Dephosphorization and desulfurization method for molten iron alloy (1984-05-22),

5. 4416134 - Process for manufacturing seamless metal tubes (1983-11-22),

6. 4413324 - Temperature pattern measuring method and a device therefor (1983-11-01),

7. 4409810 - Process for manufacturing seamless metal tubes (1983-10-18),

8. 4357512 - Apparatus for continuous manufacture of butt-welded pipe (1982-11-02),

9. 4313487 - Apparatus for changing the width of a cast piece (1982-02-02),

10. 4299266 - Method for increasing the width of a cast piece (1981-11-10),

11. 4294118 - Fully automatic ultrasonic flaw detection apparatus (1981-10-13),

12. 4288162 - Measuring particle size distribution (1981-09-08),

13. 4258318 - Flaw detector for pipe employing magnets located outside the pipe and (1981-03-24),

14. 4234217 - Pipe joint construction (1980-11-18),

15. 4227921 - Method of controlling a blast furnace operation (1980-10-14),

Sumitomo Kinzoku Kogyo Kabushiki Kaisha, also known as Sumitomo Metal Mining Co., Ltd., is a Japanese mining company. Established in 1950, the company is engaged in the exploration, extraction, and processing of various metals and minerals. Sumitomo Kinzoku Kogyo Kabushiki Kaisha is widely recognized for its expertise in copper, gold, and nickel mining. They also have interests in the production of high-performance materials and chemicals. With a strong commitment to sustainability, the company focuses on responsible mining practices and contributes to the development of local communities in which they operate.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

22 Patents

#260 in Osaka

#2,725 in Japan

#27,905 in the World

Sumitomo Kinzoku Kogyo Kabushiki Kaisha

Forward Citations = 257

53 inventors:

Takashi Yamaguchi (2 out of 15 patents)

Kazuo Sasaki (2 out of 6 patents)

Tetsuya Hirota (2 out of 6 patents)

4. Wataru Furukawa (2 out of 3 patents)

5. Mitsuo Yoshida (2 out of 2 patents)

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