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Nippon Zeon Company, Ltd.

USPTO Granted Patents = 598

EPO Patents = 2

Trademarks = 9

Forward Citations = 10,718

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646 inventors (with patents filed for the assignee):

Tadao Natsuume (50 out of 50 patents)

Teiji Kohara (38 out of 50 patents)

Eitaro Nakamura (25 out of 30 patents)

4. Yoichiro Kubo (22 out of 23 patents)

5. Haruhisa Yamamoto (22 out of 27 patents)

6. Motofumi Oyama (21 out of 23 patents)

7. Shuichi Akita (20 out of 20 patents)

8. Shizuo Kitahara (19 out of 20 patents)

9. Yasushi Joh (19 out of 22 patents)

10. Toshio Nagase (15 out of 27 patents)

11. Masao Nakamura (14 out of 45 patents)

12. Tsunehisa Ueda (14 out of 14 patents)

13. Yukio Takagishi (13 out of 15 patents)

14. Motoyuki Yamato (13 out of 14 patents)

15. Mitsuyoshi Aonuma (13 out of 13 patents)

Core Competencies:

Cycloolefin Polymer

Rubber Composition

Light Guide Plate

Polymerization Inhibitor

Electrostatic Image Toner

Alicyclic Resin Composition

Balloon Catheter

Thermoplastic Polymers

Hydrogenated Polymers

Nitrile Copolymer Rubber

Polyimide Resin

Resist Composition

598 patents: Sort by Forward Citations

1. 7357973 - Flat plate and light guide plate (2008-04-15),

2. 7238405 - Insulating material containing cycloolefin polymer (2007-07-03),

3. 6927255 - Rubber composition (2005-08-09),

4. 6883938 - Lighting equipment (2005-04-26),

5. 6835440 - Light transmitting plate (2004-12-28),

6. 6833180 - Adhesive for semiconductor part (2004-12-21),

7. 6828007 - Flat plate and light guide plate (2004-12-07),

8. 6770222 - Polymerization-inhibiting composition, polymerization inhibitor and method for inhibiting polymerization (2004-08-03),

9. 6746809 - Toner for development of electrostatic image and production process thereof (2004-06-08),

10. 6730736 - Alicyclyc structure-containing resin composition (2004-05-04),

11. 6713154 - Insulating material containing cycloolefin polymer (2004-03-30),

12. 6682797 - Contamination resistant cyclic olefin container (2004-01-27),

13. 6656153 - Balloon catheter (2003-12-02),

14. 6652773 - High gel-content polymer dispersed in a high-boiling organic medium (2003-11-25),

15. 6649315 - Nonmagnetic one component developer and developing method (2003-11-18),

Nippon Zeon Company, Ltd. is a Japanese chemical company that specializes in the development and manufacture of various elastomers, polymers, specialty chemicals, and other products. With a history dating back to 1950, Zeon has established itself as a global leader in its industry. The company's products find applications in diverse sectors such as automotive, electronics, construction, healthcare, and more. Zeon emphasizes research, innovation, and sustainable solutions to meet the evolving needs of its customers. For more information about Nippon Zeon Company, please visit their official website.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

598 Patents

#144 in Tokyo

#324 in Japan

#1,588 in the World

Nippon Zeon Company, Ltd.

Forward Citations = 10,718

646 inventors:

Tadao Natsuume (50 out of 50 patents)

Teiji Kohara (38 out of 50 patents)

Eitaro Nakamura (25 out of 30 patents)

4. Yoichiro Kubo (22 out of 23 patents)

5. Haruhisa Yamamoto (22 out of 27 patents)

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