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Nippon Ester Co., Ltd.

USPTO Granted Patents = 16

Forward Citations = 128

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41 inventors (with patents filed for the assignee):

Katsuyoshi Atsumi (5 out of 5 patents)

Tetsuo Matsumoto (4 out of 4 patents)

Tokuzo Nozaki (4 out of 4 patents)

4. Keizo Tsujimoto (3 out of 3 patents)

5. Takayuki Imamura (3 out of 3 patents)

6. Noboru Watanabe (2 out of 6 patents)

7. Atsuko Ueda (2 out of 2 patents)

8. Shosuke Oku (2 out of 2 patents)

9. Tsutomu Kado (2 out of 2 patents)

10. Fumio Hirota (2 out of 2 patents)

11. Katsuya Fujimoto (2 out of 2 patents)

12. Makiko Sakai (2 out of 2 patents)

13. Takashige Kato (2 out of 2 patents)

14. Akio Nakagi (2 out of 2 patents)

15. Yoshiho Toyota (2 out of 2 patents)

16 patents: Sort by Forward Citations

1. 9034988 - Resin composition containing copolymerized polyester resin (2015-05-19),

2. 5705601 - Process for producing polyester film (1998-01-06),

3. 5310848 - Resin composition for powder coating (1994-05-10),

4. 5274052 - Resin composition for powder coatings (1993-12-28),

5. 5264529 - Resin composition for powder coatings (1993-11-23),

6. 5229470 - Resin composition for matte powder coating (1993-07-20),

7. 5106905 - Colorants, polyester fibers mass-colored therewith and process for (1992-04-21),

8. 5003029 - Flame resistant polyester from di aryl-di(hydroxyalkylene oxy)aryl (1991-03-26),

9. 4940772 - Process for producing flame resistant polyester (1990-07-10),

10. 4879335 - Black liquid colorant and polyester fibers dope-dyed therewith (1989-11-07),

11. 4737567 - Phosphorus containing copoleyster (1988-04-12),

12. 4712366 - Denier-mixed composite yarn, denier-mixed special thick and thin yarn, (1987-12-15),

13. 4237261 - Process for continuously producing polyester and spun fiber (1980-12-02),

14. 4087479 - Heat-curable resin compositions for powder paints (1978-05-02),

15. 3991034 - Polyester resin composition (1976-11-09),

Company Overview

Nippon Ester Co., Ltd. is a prominent player in the chemical industry, specializing in the development and manufacturing of high-performance esters and related products. The company focuses on providing innovative solutions for various applications, including lubricants, plasticizers, and specialty chemicals. With a strong emphasis on research and development, Nippon Ester aims to advance technology in sectors such as automotive, electronics, and consumer goods, contributing to enhanced product performance and sustainability in Japan and beyond.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

16 Patents

#6 in Okazaki

#3,343 in Japan

#37,868 in the World

Nippon Ester Co., Ltd.

Forward Citations = 128

41 inventors:

Katsuyoshi Atsumi (5 out of 5 patents)

Tetsuo Matsumoto (4 out of 4 patents)

Tokuzo Nozaki (4 out of 4 patents)

4. Keizo Tsujimoto (3 out of 3 patents)

5. Takayuki Imamura (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nippon Ester Co., Ltd.. Retrieved from https://idiyas.com/company/nippon-ester-company

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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