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Katayama Special Industries, Ltd.

USPTO Granted Patents = 21

Forward Citations = 162

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9 inventors (with patents filed for the assignee):

Hirofumi Sugikawa (18 out of 18 patents)

Keiichi Hayashi (2 out of 7 patents)

Hayashi Keiichi (2 out of 2 patents)

4. Michibata Sachio (2 out of 2 patents)

5. Sugikawa Hirofumi (2 out of 2 patents)

6. Toshihiko Ikehata (1 out of 8 patents)

7. Takuyuki Okano (1 out of 2 patents)

8. Misao Iguchi (1 out of 1 patent)

9. Sachio Michibata (1 out of 1 patent)

21 patents: Sort by Forward Citations

1. 8568917 - Material for contact components or battery components, and battery using the same (2013-10-29),

2. 6869728 - Method of manufacturing battery electrode substrate and battery electrode substrate (2005-03-22),

3. 6682852 - Method of manufacturing battery electrode substrate and battery electrode substrate (2004-01-27),

4. 6682851 - Method of manufacturing battery electrode substrate and battery electrode substrate (2004-01-27),

5. 6500582 - Method of producing electrode for battery and electrode produced by method (2002-12-31),

6. 6485865 - Porous metal sheet, battery electrode plate composed of porous metal sheet and battery having electrode plate (2002-11-26),

7. 6455201 - Method of manufacturing battery electrode substrate and battery electrode substrate (2002-09-24),

8. 6436580 - Method of manufacturing porous sheet, porous metal sheet manufactured by method, and electrode for battery (2002-08-20),

9. 6165640 - Battery can-forming plate and battery can (2000-12-26),

10. 6153027 - Method of manufacturing battery can-forming plate, battery can-forming (2000-11-28),

11. 6110417 - Porous metallic sheet used as an electrode substrate of a battery and (2000-08-29),

12. 6080357 - Method of manufacturing porous sheet, porous metal sheet manufactured by (2000-06-27),

13. 5850591 - Method of manufacturing a metal sheet (1998-12-15),

14. 5840441 - Battery can, sheet for forming battery can, and method for manufacturing (1998-11-24),

15. 5655295 - Lead-provided porous metal sheet and method for manufacturing the sheet (1997-08-12),

Katayama Special Industries, Ltd. is a leading manufacturer of precision metal products and components for a variety of industries. With a strong emphasis on quality and innovation, Katayama Special Industries, Ltd. has been serving customers worldwide for over 50 years. Their expertise includes metal stamping, tooling, welding, and assembly, ensuring they can meet the needs of a diverse range of industries.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

21 Patents

#270 in Osaka

#2,798 in Japan

#29,031 in the World

Katayama Special Industries, Ltd.

Forward Citations = 162

9 inventors:

Hirofumi Sugikawa (18 out of 18 patents)

Keiichi Hayashi (2 out of 7 patents)

Hayashi Keiichi (2 out of 2 patents)

4. Michibata Sachio (2 out of 2 patents)

5. Sugikawa Hirofumi (2 out of 2 patents)

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