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Daicel Polymer Ltd.

USPTO Granted Patents = 24

% Expired Patents = 12.5

EPO Patents = 21

Trademarks = 1

Forward Citations = 26

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31 inventors (with patents filed for the assignee):

Masahiko Itakura (6 out of 8 patents)

Toshio Oguni (3 out of 3 patents)

Shinichiro Imanishi (3 out of 7 patents)

4. Yasuo Okumura (3 out of 3 patents)

5. Daiji Ikeda (3 out of 7 patents)

6. Yoshihiro Asami (3 out of 3 patents)

7. Toshihiro Tai (3 out of 4 patents)

8. Hiroshi Katayama (3 out of 47 patents)

9. Takayuki Uno (2 out of 5 patents)

10. Kazunobu Yanai (2 out of 2 patents)

11. Masahiro Katayama (2 out of 2 patents)

12. Takafumi Ueda (2 out of 13 patents)

13. Naoki Wakita (2 out of 6 patents)

14. Hiroshi Sagane (2 out of 2 patents)

15. Hirotomo Katano (2 out of 2 patents)

24 patents: Sort by Forward Citations

1. 12122900 - Electromagnetic wave shielding molded article (2024-10-22),

2. 11590608 - Sealing method (2023-02-28),

3. 11515644 - Electromagnetic wave shielding and absorbing molded article (2022-11-29),

4. 11472068 - Thermoplastic resin composition for cleaning molding processing machine (2022-10-18),

5. 11338475 - Fiber-reinforced resin composition (2022-05-24),

6. 11274187 - Cellulose ester composition (2022-03-15),

7. 11267171 - Method of manufacturing composite molded body (2022-03-08),

8. 11167376 - Method for roughening metal molded body surface (2021-11-09),

9. 10703019 - Resin-impregnated fiber bundle, compression molded article, and a method for producing the same (2020-07-07),

10. 10615508 - Thermoplastic resin composition for molded article having capability of shielding millimeter waves (2020-04-07),

11. 10494503 - Cellulose ester composition (2019-12-03),

12. 10434741 - Composite molded article (2019-10-08),

13. 10322535 - Method of manufacturing composite molded body (2019-06-18),

14. 9920285 - Thermoplastic resin composition for cleaning molding processing machine (2018-03-20),

15. 9505924 - ABS resin composition (2016-11-29),

Daicel Polymer Ltd., based in Tokyo, specializes in the development and manufacturing of advanced polymer materials. The company focuses on innovative solutions for various industries, including automotive, electronics, and packaging. With a strong emphasis on research and technology, Daicel Polymer is dedicated to enhancing material performance and sustainability. Its expertise in polymer science positions it as a key player in the global market, contributing to advancements in material applications and environmental responsibility.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

Daicel Polymer Ltd.

24 Patents

#1,214 in

#2,632 in

#26,628 in the World

Daicel Polymer Ltd.

Forward Citations = 26

31 inventors:

Masahiko Itakura (6 out of 8 patents)

Toshio Oguni (3 out of 3 patents)

Shinichiro Imanishi (3 out of 7 patents)

4. Yasuo Okumura (3 out of 3 patents)

5. Daiji Ikeda (3 out of 7 patents)

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