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Wintech Polymer Ltd.

USPTO Granted Patents = 26

% Expired Patents = 26.9

EPO Patents = 11

Forward Citations = 68

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23 inventors (with patents filed for the assignee):

Kouichi Sakata (14 out of 20 patents)

Kazuya Goshima (4 out of 13 patents)

Shinya Yamada (4 out of 16 patents)

4. Fumiyuki Ohtake (4 out of 4 patents)

5. Takayuki Ishikawa (3 out of 81 patents)

6. Yasumitsu Miyamoto (3 out of 4 patents)

7. Katsunori Takayama (3 out of 8 patents)

8. Kumiko Doi (2 out of 2 patents)

9. Hiroyuki Amano (2 out of 4 patents)

10. Shinichiro Shoji (1 out of 12 patents)

11. Shotaro Moriya (1 out of 1 patent)

12. Koji Mizutani (1 out of 13 patents)

13. Kazutaka Katayama (1 out of 37 patents)

14. Takuma Ishikawa (1 out of 1 patent)

15. Kunihiro Hirata (1 out of 1 patent)

Core Competencies:

Polybutylene Terephthalate

Resin Composition

Molded Article

Heat Shock Resistance

Laser Welding

Hydrolysis Resistance

Flame-Retardant

Vibration Welding

Integrated Molded Product

Pellet Production

Thin Molded Article

26 patents: Sort by Forward Citations

1. 10336899 - Polybutylene terephthalate resin composition (2019-07-02),

2. 9957375 - Resin composition (2018-05-01),

3. 9884953 - Polybutylene terephthalate resin composition and molded article thereof (2018-02-06),

4. 9790344 - Polybutylene terephthalate resin composition and pellet thereof (2017-10-17),

5. 9663652 - Polybutylene terephthalate resin composition (2017-05-30),

6. RE46324 - Method for forming an insert injection-molded article exhibiting improved resistance to heat shock utilizing a specifically defined polybutylene terephthalate composition (2017-02-27),

7. 9522987 - Polybutylene terephthalate resin composition and hydrolysis resistance-improving agent (2016-12-20),

8. 9499682 - Polybutylene terephthalate resin composition and thin molded article (2016-11-22),

9. 9434839 - Polybutylene terephthalate resin composition and welded body (2016-09-06),

10. 9221946 - Polybutylene terephthalate resin pellets, and production method for said polybutylene terephthalate resin pellets (2015-12-29),

11. 8921465 - Polybutylene terephthalate resin composition (2014-12-30),

12. 8921457 - Resin molded body (2014-12-30),

13. 8906988 - Integrated molded product (2014-12-09),

14. 8734956 - Polybutylene terephthalate resin composition (2014-05-27),

15. 8530555 - Polybutylene terephthalate resin composition (2013-09-10),

Company Overview

Wintech Polymer Ltd. is a Tokyo-based company specializing in the development and manufacturing of advanced polymer materials. The organization focuses on innovative solutions for various industries, including automotive, electronics, and medical devices. With a commitment to research and development, Wintech Polymer aims to enhance material performance and sustainability, leveraging cutting-edge technology to meet the evolving needs of its global clientele. The company is recognized for its expertise in polymer science and engineering.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

26 Patents

#1,164 in Tokyo

#2,508 in Japan

#24,826 in the World

Wintech Polymer Ltd.

Forward Citations = 68

23 inventors:

Kouichi Sakata (14 out of 20 patents)

Kazuya Goshima (4 out of 13 patents)

Shinya Yamada (4 out of 16 patents)

4. Fumiyuki Ohtake (4 out of 4 patents)

5. Takayuki Ishikawa (3 out of 81 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Wintech Polymer Ltd.. Retrieved from https://idiyas.com/company/wintech-polymer

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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