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Du Pont Toray Company Limited

USPTO Granted Patents = 32

EPO Patents = 3

Forward Citations = 123

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51 inventors (with patents filed for the assignee):

Masao Umezawa (9 out of 13 patents)

Kazuhiko Kosuge (7 out of 9 patents)

Kenji Uhara (6 out of 8 patents)

4. Hideki Nakanishi (4 out of 7 patents)

5. Takeshi Hatano (4 out of 5 patents)

6. Naofumi Yasuda (4 out of 5 patents)

7. Toshikazu Matsuda (4 out of 5 patents)

8. Hideaki Machida (3 out of 5 patents)

9. Iori Nakabayashi (3 out of 4 patents)

10. Kouichi Sawasaki (3 out of 5 patents)

11. Hideki Moriyama (3 out of 3 patents)

12. Mitsuhiko Tanahashi (3 out of 3 patents)

13. Naruaki Takahashi (2 out of 2 patents)

14. Gen Ueta (2 out of 2 patents)

15. Shingo Ito (2 out of 3 patents)

32 patents: Sort by Forward Citations

1. 12024824 - Polyimide fiber paper using thermoplastic polymer (2024-07-02),

2. 11230810 - Polyimide fiber sheet (2022-01-25),

3. 10946617 - Graphite laminated body (2021-03-16),

4. 8789394 - Resin-coated glove (2014-07-29),

5. 8021581 - Flame retardant composition, flame-retardant resin composition and molded product and fiber made of flame-retardant resin composition (2011-09-20),

6. 7998373 - Flame retardant composition, flame-retardant resin composition and molded product and fiber made of flame-retardant resin composition (2011-08-16),

7. 7694779 - Sound absorbing material (2010-04-13),

8. 7452610 - Multi-layer polyimide films and flexible circuit substrates therefrom (2008-11-18),

9. 7273661 - Electrically conductive polyimide compositions having a carbon nanotube filler component and methods relating thereto (2007-09-25),

10. 7155893 - Method of producing heat-resistant crimped yarn (2007-01-02),

11. 6916544 - Laminate type materials for flexible circuits or similar-type assemblies and methods relating thereto (2005-07-12),

12. 6908685 - Polyimide film, method of manufacture, and metal interconnect board with polyimide film substrate (2005-06-21),

13. 6889494 - Heat-resistant crimped yarn (2005-05-10),

14. 6668535 - Heat-resistant crimped yarn (2003-12-30),

15. 6639041 - Spandex having low set at low temperatures (2003-10-28),

Du Pont Toray Company Limited is a joint venture between DuPont and Toray Industries. They specialize in manufacturing and marketing high-performance films. With a focus on innovation and sustainable solutions, they serve a wide range of industries including electronics, renewable energy, automotive, and more.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

32 Patents

#901 in Tokyo

#2,182 in Japan

#20,091 in the World

Du Pont Toray Company Limited

Forward Citations = 123

51 inventors:

Masao Umezawa (9 out of 13 patents)

Kazuhiko Kosuge (7 out of 9 patents)

Kenji Uhara (6 out of 8 patents)

4. Hideki Nakanishi (4 out of 7 patents)

5. Takeshi Hatano (4 out of 5 patents)

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