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Tonen Chemical Corporation

Patents = 47

Trademarks = 2

Forward Citations = 911

where 'Filed Patents' based on already Granted Patents

where 'Inventors Filed' based on already Granted Patents

101 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)

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 2 2025

47 Patents

#718 in Tokyo

#1,739 in Japan

#14,376 in the World

Tonen Chemical Corporation

Forward Citations = 911

101 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)

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