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Edogawa-Ku, Tokyo, Japan

Koike Sanso Kogyo Co., Ltd.

USPTO Granted Patents = 27

EPO Patents = 6

Forward Citations = 249

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43 inventors (with patents filed for the assignee):

Akira Furujo (12 out of 14 patents)

Tetsuo Koike (7 out of 14 patents)

Masatoshi Motoyama (7 out of 8 patents)

4. Ryuta Hirai (6 out of 7 patents)

5. Kazuya Kashimata (5 out of 6 patents)

6. Yoichi Maruyama (4 out of 33 patents)

7. Tetsuya Iizuka (3 out of 53 patents)

8. Yasuo Koike (3 out of 16 patents)

9. Ryuji Kobayashi (2 out of 11 patents)

10. Akira Hurujo (2 out of 2 patents)

11. Masahiro Mogi (2 out of 2 patents)

12. Tokuji Tanaka (2 out of 2 patents)

13. Seiji Mizuno (2 out of 3 patents)

14. Satoshi Masuda (1 out of 37 patents)

15. Daisuke Kato (1 out of 37 patents)

27 patents: Sort by Forward Citations

1. D885448 - Welding and cutting machine for metals (2020-05-26),

2. 10595390 - Plasma torch (2020-03-17),

3. 10517165 - Plasma cutting apparatus (2019-12-24),

4. 10406632 - Laser machining device (2019-09-10),

5. D775249 - Inner nozzle for plasma torch (2016-12-27),

6. 9492882 - Plasma cutting method and plasma cutting apparatus (2016-11-15),

7. 9011759 - Mobile workbench (2015-04-21),

8. D702272 - Outer nozzle for plasma torch (2014-04-08),

9. 8598487 - Plasma cutting method for cutting a carbon steel plate and for reducing fine particles (2013-12-03),

10. D687874 - Electrode for plasma torch (2013-08-13),

11. D654940 - Inner nozzle for plasma torch (2012-02-28),

12. D653270 - Outer nozzle for plasma torch (2012-01-31),

13. D652437 - Plasma torch body (2012-01-17),

14. D520037 - Nozzle for plasma torch (2006-05-02),

15. D519137 - Nozzle for plasma torch (2006-04-18),

Koike Sanso Kogyo Co., Ltd. is a leading manufacturer of cutting and welding machines, providing solutions to industries such as metal fabrication, shipbuilding, and automotive. With a history of over 60 years, the company is known for its high-quality products and innovative technologies. Koike offers a wide range of equipment, including plasma cutters, oxy-fuel cutting machines, and welding carriages, to meet the needs of various customers around the world.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

27 Patents

#1 in Edogawa-Ku, Tokyo

#2,405 in Japan

#23,315 in the World

Edogawa-Ku, Tokyo, Japan

Koike Sanso Kogyo Co., Ltd.

Forward Citations = 249

43 inventors:

Akira Furujo (12 out of 14 patents)

Tetsuo Koike (7 out of 14 patents)

Masatoshi Motoyama (7 out of 8 patents)

4. Ryuta Hirai (6 out of 7 patents)

5. Kazuya Kashimata (5 out of 6 patents)

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