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Tomoegawa Corporation

USPTO Granted Patents = 10

EPO Patents = 7

Trademarks = 2

Forward Citations = 8

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20 inventors (with patents filed for the assignee):

Shuhei Hatano (5 out of 6 patents)

Hideki Moriuchi (4 out of 9 patents)

Daisuke Muramatsu (1 out of 4 patents)

4. Taku Kurahara (1 out of 2 patents)

5. Katsuyoshi Hoshino (1 out of 12 patents)

6. Hajime Tsuda (1 out of 5 patents)

7. Akinori Ebe (1 out of 16 patents)

8. Keiichiro Haji (1 out of 2 patents)

9. Nobuyuki Aoki (1 out of 6 patents)

10. Katsuya Okumura (1 out of 4 patents)

11. Maika Yamaji (1 out of 1 patent)

12. Yosuke Sugawara (1 out of 1 patent)

13. Yousuke Sugawara (1 out of 1 patent)

14. Aoi Magori (1 out of 1 patent)

15. Rio Yamada (1 out of 1 patent)

10 patents: Sort by Forward Citations

1. D1092422 - Heat exchange plate (2025-09-09),

2. 12354839 - Radio-frequency antenna and plasma processing device (2025-07-08),

3. 12342427 - Sheet-like heater (2025-06-24),

4. 12298083 - Temperature control unit and temperature control device (2025-05-13),

5. D1073913 - Heat exchange plate (2025-05-06),

6. 12249521 - Temperature control unit (2025-03-11),

7. 12217994 - Electrostatic chuck device and sleeve for electrostatic chuck device (2025-02-04),

8. 12176237 - Electrostatic chuck device (2024-12-24),

9. 11985795 - Temperature control unit (2024-05-14),

10. 11948740 - Porous conductor having conductive nanostructure and electricity storage device using same (2024-04-02),

Tomoegawa Corporation, established in 1906, specializes in manufacturing insulating materials and high-performance paper products. The company is renowned for its advanced technology in electrical insulation, and it serves various sectors, including electronics, automobiles, and consumer goods. With a commitment to innovation and sustainability, Tomoegawa focuses on providing quality products that meet the evolving needs of its customers while contributing to environmental conservation. Operating globally, the company aims to strengthen its presence in international markets and enhance its product offerings through research and development.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

10 Patents

#1,690 in Tokyo

#4,285 in Japan

#54,268 in the World

Tomoegawa Corporation

Forward Citations = 8

20 inventors:

Shuhei Hatano (5 out of 6 patents)

Hideki Moriuchi (4 out of 9 patents)

Daisuke Muramatsu (1 out of 4 patents)

4. Taku Kurahara (1 out of 2 patents)

5. Katsuyoshi Hoshino (1 out of 12 patents)

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