For the Inventor, By the Inventor

Enter assignee name

Tonen Chemical Corporation

USPTO Granted Patents = 47

CIPO Patents = 4

EPO Patents = 3

Trademarks = 2

Forward Citations = 912

Loading Chart...

Loading Chart...

94 inventors (with patents filed for the assignee):

Koichi Kono (16 out of 47 patents)

Kotaro Takita (13 out of 39 patents)

Norimitsu Kaimai (11 out of 15 patents)

4. Hidehiko Funaoka (7 out of 9 patents)

5. Shigeaki Kobayashi (7 out of 8 patents)

6. Kazuo Hirano (6 out of 23 patents)

7. Taiji Kambayashi (6 out of 12 patents)

8. Toshitake Nagai (6 out of 10 patents)

9. Osamu Komiyama (5 out of 9 patents)

10. Yuichiro Miura (5 out of 5 patents)

11. Takayuki Nate (5 out of 5 patents)

12. Masahisa Ohtsuka (5 out of 5 patents)

13. Hiroyuki Ozaki (4 out of 32 patents)

14. Satoshi Ueki (4 out of 32 patents)

15. Patrick Brant (3 out of 141 patents)

Core Competencies:

Microporous Membrane

Polyolefin Film

Battery Separator

Polymeric Material

Composite Membrane

Propylene Copolymer

Thermoplastic Resin

Artificial Snow Granules

Polyarylene Sulfide

Non-Woven Fabrics

Polypropylene Resin

Catalyst Regeneration

47 patents: Sort by Forward Citations

1. 8026005 - Microporous polyolefin membrane, its production method, battery separator, and battery (2011-09-27),

2. 7872086 - Polymeric material and its manufacture and use (2011-01-18),

3. 7815825 - Microporous polyolefin membrane, and method of producing the same (2010-10-19),

4. 7807287 - Multi-layer, microporous membrane, battery separator and battery (2010-10-05),

5. 7785735 - Microporous composite membrane and its producing method and use (2010-08-31),

6. 7781094 - Microporous composite membrane and its production method and use (2010-08-24),

7. 7700182 - Microporous polyolefin membrane, its production method, and battery separator (2010-04-20),

8. 7479243 - Microporous polyolefin membrane, and method of producing the same (2009-01-20),

9. 7105608 - Copolymer of propylene with a conjugated diene and a process of preparing the same (2006-09-12),

10. 6887944 - Modified polypropylene and process for producing same (2005-05-03),

11. 6824865 - Microporous polyolefin film and process for producing the same (2004-11-30),

12. 6762146 - Vanadium phosphorous mixed oxide (2004-07-13),

13. 6666969 - Microporous polyolefin film and process for producing the same (2003-12-23),

14. 6566012 - Polyolefin microporous film and method for preparing the same (2003-05-20),

15. 6245272 - Polyolefin microporous film and method for preparing the same (2001-06-12),

Tonen Chemical Corporation is a global chemical company that specializes in the development and manufacturing of a wide range of chemical products. With a commitment to innovation and sustainability, Tonen Chemical Corporation delivers high-quality solutions for various industries, including automotive, electronics, and construction. Through advanced research and development, Tonen Chemical Corporation aims to contribute to the growth and advancement of society while minimizing environmental impact.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

47 Patents

#719 in Tokyo

#1,741 in Japan

#14,392 in the World

Tonen Chemical Corporation

Forward Citations = 912

94 inventors:

Koichi Kono (16 out of 47 patents)

Kotaro Takita (13 out of 39 patents)

Norimitsu Kaimai (11 out of 15 patents)

4. Hidehiko Funaoka (7 out of 9 patents)

5. Shigeaki Kobayashi (7 out of 8 patents)

Please report any incorrect information to support@idiyas.com

Loading…