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Tomoegawa Corporation

USPTO Granted Patents = 16

EPO Patents = 10

Trademarks = 1

Forward Citations = 9

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35 inventors (with patents filed for the assignee):

Hideki Moriuchi (8 out of 13 patents)

Shuhei Hatano (5 out of 6 patents)

Tomoki Furue (1 out of 9 patents)

4. Daisuke Muramatsu (1 out of 4 patents)

5. Taku Kurahara (1 out of 2 patents)

6. Katsuyoshi Hoshino (1 out of 12 patents)

7. Hajime Tsuda (1 out of 5 patents)

8. Takayuki Sano (1 out of 10 patents)

9. Akinori Ebe (1 out of 16 patents)

10. Keiichiro Haji (1 out of 2 patents)

11. Nobuyuki Aoki (1 out of 6 patents)

12. Kazuha Nishiura (1 out of 1 patent)

13. Kazuki Ishihara (1 out of 1 patent)

14. Katsuya Okumura (1 out of 4 patents)

15. Maika Yamaji (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 12669299 - Metal fiber molded body, temperature regulation unit, and method for manufacturing metal fiber molded body (2026-06-30),

2. 12568558 - Heat exchanger (2026-03-03),

3. 12550291 - Temperature regulation unit and method for manufacturing temperature regulation unit (2026-02-10),

4. 12541159 - Toner particles for developing electrostatically charged image and toner composition for developing electrostatically charged image (2026-02-03),

5. 12540782 - Temperature regulation unit with rod shaped flow members (2026-02-03),

6. 12540437 - Inorganic fiber sheet with shots distributed on the side surface (2026-02-03),

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

8. 12354839 - Radio-frequency antenna and plasma processing device (2025-07-08),

9. 12342427 - Sheet-like heater (2025-06-24),

10. 12298083 - Temperature control unit and temperature control device (2025-05-13),

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

12. 12249521 - Temperature control unit (2025-03-11),

13. 12217994 - Electrostatic chuck device and sleeve for electrostatic chuck device (2025-02-04),

14. 12176237 - Electrostatic chuck device (2024-12-24),

15. 11985795 - Temperature control unit (2024-05-14),

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.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

16 Patents

#1,499 in Tokyo

#3,338 in Japan

#37,766 in the World

Tomoegawa Corporation

Forward Citations = 9

35 inventors:

Hideki Moriuchi (8 out of 13 patents)

Shuhei Hatano (5 out of 6 patents)

Tomoki Furue (1 out of 9 patents)

4. Daisuke Muramatsu (1 out of 4 patents)

5. Taku Kurahara (1 out of 2 patents)

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