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Toray Tonen Specialty Separator Godo Kaisha

USPTO Granted Patents = 8

EPO Patents = 5

Trademarks = 2

Forward Citations = 20

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13 inventors (with patents filed for the assignee):

Kotaro Takita (5 out of 39 patents)

Shintaro Kikuchi (4 out of 24 patents)

Koichi Kono (4 out of 47 patents)

4. Patrick Brant (3 out of 141 patents)

5. Hiroyuki Ozaki (3 out of 32 patents)

6. Zerong Lin (3 out of 28 patents)

7. Kohtaro Kimishima (3 out of 8 patents)

8. Jeffrey Lawrence Brinen (3 out of 28 patents)

9. Kotaro Kimishima (1 out of 7 patents)

10. Junko Takita, Legal Representative (1 out of 1 patent)

11. Hidehiko Funaoka (1 out of 9 patents)

12. Norimitsu Kaimai (1 out of 15 patents)

13. Shigeaki Kobayashi (1 out of 8 patents)

14. Jeffery Lawrence Brinen (1 patent)

8 patents: Sort by Forward Citations

1. 8252450 - Multi-layer, microporous polyolefin membrane, its production method, battery separator, and battery (2012-08-28),

2. 8075818 - Method of producing a microporous polyolefin membrane (2011-12-13),

3. 8021789 - Microporous membrane and manufacturing method (2011-09-20),

4. 8012622 - Multi-layer, microporous membrane, battery separator and battery (2011-09-06),

5. 8008417 - Polymeric material and its manufacture and use (2011-08-30),

6. 7988895 - Production method of microporous polyethylene membrane and battery separator (2011-08-02),

7. 7985497 - Multi-layer, microporous polyethylene membrane, its production method, and battery separator (2011-07-26),

8. 7981536 - Microporous membrane, battery separator and battery (2011-07-19),

Toray Tonen Specialty Separator Godo Kaisha is a leading manufacturer of specialty separators for lithium-ion batteries. With a focus on innovation and quality, the company provides high-performance products that contribute to the advancement of battery technology. Established as a joint venture between Toray Industries and Tonen Chemical Corporation, the company has a strong reputation for reliability and expertise in the industry.

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

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USPTO Data Jan 1 1976 - Dec 23 2025

8 Patents

#11 in Tochigi

#4,917 in Japan

Toray Tonen Specialty Separator Godo Kaisha

Forward Citations = 20

13 inventors:

Kotaro Takita (5 out of 39 patents)

Shintaro Kikuchi (4 out of 24 patents)

Koichi Kono (4 out of 47 patents)

4. Patrick Brant (3 out of 141 patents)

5. Hiroyuki Ozaki (3 out of 32 patents)

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