For the Inventor, By the Inventor

Enter assignee name

Toyo Kohan Co., Ltd.

USPTO Granted Patents = 260

CIPO Patents = 1

EPO Patents = 72

Trademarks = 4

Forward Citations = 938

Loading Chart...

Loading Chart...

303 inventors (with patents filed for the assignee):

Koh Yoshioka (27 out of 27 patents)

Tsuneo Inui (25 out of 26 patents)

Tatsuo Tomomori (24 out of 24 patents)

4. Yoshikazu Kondo (21 out of 22 patents)

5. Kinji Saijo (20 out of 26 patents)

6. Hitoshi Ohmura (19 out of 19 patents)

7. Atsuo Tanaka (18 out of 19 patents)

8. Hironao Okayama (17 out of 19 patents)

9. Kazuo Yoshida (17 out of 24 patents)

10. Kota Sadaki (15 out of 15 patents)

11. Teppei Kurokawa (14 out of 14 patents)

12. Nobuaki Mukai (14 out of 14 patents)

13. Shinichirou Horie (13 out of 13 patents)

14. Hideo Ohmura (12 out of 12 patents)

15. Michifumi Tanga (12 out of 12 patents)

Core Competencies:

Electrolytic Foil

Battery Current Collector

Surface-Treated Steel Sheet

Copper Clad Laminate

Roughened Nickel-Plated Sheet

Sulfide All-Solid-State Battery

Roll-Bonded Laminate

Thermoplastic Resin Film

Multilayered Polyester Resin

Conducting Member for Fuel Cells

Substrate for Epitaxial Growth

Nickel-Plated Steel Sheet

260 patents: Sort by Forward Citations

1. 12508778 - Layered composite (2025-12-30),

2. 12476256 - Electrolytic foil and battery current collector (2025-11-18),

3. 12448697 - Surface-treated steel sheet and production method therefor (2025-10-21),

4. 12402253 - Copper clad laminate and method for producing the same (2025-08-26),

5. 12377636 - Resin film for laminating metal plate and laminated metal plate using the same (2025-08-05),

6. 12325928 - Roughened nickel-plated sheet (2025-06-10),

7. 12322809 - Current collector for battery, and battery (2025-06-03),

8. 12270109 - Surface-treated steel sheet and method for manufacturing the same (2025-04-08),

9. 12199294 - Surface-treated steel sheet for cell container (2025-01-14),

10. 12199293 - Surface-treated steel sheet for cell container (2025-01-14),

11. 12163243 - Surface-treated steel sheet, metal container, and method for manufacturing surface-treated steel sheet (2024-12-10),

12. 12122122 - Resin-coated metallic plate, and metallic can produced by processing said resin- coated metallic plate (2024-10-22),

13. 12104271 - Roughened plated sheet (2024-10-01),

14. 12070923 - Substrate for epitaxial growth and method for producing same (2024-08-27),

15. 12049060 - Multilayered polyester resin-coated metal sheet, multilayered polyester resin film, and can lid (2024-07-30),

Toyo Kohan Co., Ltd. is a Japanese company specializing in the manufacture and sale of steel sheets, composite materials, and other related products. The company was founded in 1934 and has since grown to become a trusted provider of high-quality materials for various industries. With advanced technologies and a commitment to innovation, Toyo Kohan aims to contribute to society by delivering sustainable and reliable solutions. For more information about their products and services, please visit their website.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

260 Patents

#260 in Tokyo

#567 in Japan

#3,254 in the World

Toyo Kohan Co., Ltd.

Forward Citations = 938

303 inventors:

Koh Yoshioka (27 out of 27 patents)

Tsuneo Inui (25 out of 26 patents)

Tatsuo Tomomori (24 out of 24 patents)

4. Yoshikazu Kondo (21 out of 22 patents)

5. Kinji Saijo (20 out of 26 patents)

Please report any incorrect information to support@idiyas.com

Loading…