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Kureha Kagaku Kogyo K.k.

USPTO Granted Patents = 137

Forward Citations = 1,230

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125 inventors (with patents filed for the assignee):

Yoshikatsu Satake (37 out of 52 patents)

Zenya Shiiki (32 out of 72 patents)

Takayuki Katto (26 out of 64 patents)

4. Yukichika Kawakami (22 out of 39 patents)

5. Toshiya Mizuno (19 out of 51 patents)

6. Toshitaka Kouyama (17 out of 28 patents)

7. Masahito Tada (16 out of 27 patents)

8. Mitsuru Hoshino (16 out of 22 patents)

9. Ken Kashiwadate (14 out of 22 patents)

10. Takashi Kaneko (13 out of 65 patents)

11. Hiroyuki Endo (13 out of 15 patents)

12. Yo Iizuka (12 out of 43 patents)

13. Masato Arahira (12 out of 19 patents)

14. Yoshikichi Teramoto (11 out of 21 patents)

15. Shinji Yamamoto (10 out of 195 patents)

Core Competencies:

Polyglycolic Acid

Cyclic Esters

Polyvinylidene Fluoride

Polyarylene Sulfide

Gas Barrier Films

Thermoplastic Resins

Composite Materials

Optical Resolution

Biocidal Compositions

Injection-Molded Products

Moistureproofing Films

Herbicide Derivatives

137 patents: Sort by Forward Citations

1. 6951956 - Crystalline polyglycolic acid, polyglycolic acid composition and production process thereof (2005-10-04),

2. 6916939 - Process for the preparation of cyclic esters and method for purification of the same (2005-07-12),

3. 6891048 - Glycolide production process, and glycolic acid composition (2005-05-10),

4. 6846436 - Semiconductive polyvinylidene fluoride resin composition (2005-01-25),

5. 6762229 - Polyarylene sulfide resin composition (2004-07-13),

6. 6693204 - Method for purification of cyclic ester (2004-02-17),

7. 6686048 - Composite carbonaceous heat insulator (2004-02-03),

8. 6673403 - Gas-barrier, multi-layer hollow container (2004-01-06),

9. 6641878 - Optical pickup device holding container (2003-11-04),

10. 6610853 - N-(phenylsulfonyl)picolinamide derivatives, process for producing the same, and herbicide (2003-08-26),

11. 6610766 - Polyvinylidene fluoride resin composition (2003-08-26),

12. 6545081 - Synthetic resin composition (2003-04-08),

13. 6545075 - Thermoplastic resin composition (2003-04-08),

14. 6469606 - Coil component (2002-10-22),

15. 6432516 - Moistureproofing film and electroluminescent device (2002-08-13),

Kureha Kagaku Kogyo K.K. is a leading global chemical company renowned for its innovative solutions. With a wide range of high-performance materials and products, Kureha serves various industries including automotive, electronics, packaging, and healthcare. Committed to sustainability and excellence, the company constantly strives to deliver cutting-edge technology and exceptional customer service.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

137 Patents

#396 in

#885 in

#5,736 in the World

Kureha Kagaku Kogyo K.k.

Forward Citations = 1,230

125 inventors:

Yoshikatsu Satake (37 out of 52 patents)

Zenya Shiiki (32 out of 72 patents)

Takayuki Katto (26 out of 64 patents)

4. Yukichika Kawakami (22 out of 39 patents)

5. Toshiya Mizuno (19 out of 51 patents)

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