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For the Inventor, By the Inventor

Nasushiobara-shi, Japan

Toray Battery Separator Film Co., Ltd.


USPTO Granted Patents = 50



Trademarks = 3

Forward Citations = 65

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100 inventors (with patents filed for the assignee):

goldMedal Kotaro Takita (18 out of 39 patents)

silverMedal Shintaro Kikuchi (17 out of 24 patents)

bronzeMedal Koichi Kono (13 out of 47 patents)

4.  Takeshi Ishihara (12 out of 19 patents)

5.  Patrick Brant (10 out of 141 patents)

6.  Satoshi Miyaoka (10 out of 11 patents)

7.  Naoki Mizuno (5 out of 24 patents)

8.  Kazuhiro Yamada (5 out of 10 patents)

9.  Michihiko Irie (4 out of 6 patents)

10.  Masanori Nakamura (4 out of 5 patents)

11.  Kotaro Kimishima (4 out of 7 patents)

12.  Donna Jean Crowther (4 out of 121 patents)

13.  Sadakatsu Suzuki (4 out of 13 patents)

14.  Joo-Sung Lee (3 out of 72 patents)

15.  Jong-Hun Kim (3 out of 75 patents)


Core Competencies:
Microporous Membranes
Battery Separator Film
Polyolefin Membrane
Composite Porous Membrane
Multi-Layer Membrane
Electrochemical Device
Polyethylene Membrane
Production Methods
High-Strength Microfiber
Organic-Inorganic Composite
Extrusion Process
Thermoplastic Resin

50 patents:

1. 10158111 - Preparation method of separator having organic-inorganic composite porous coating layer, separator formed therefrom, and electrochemical device containing the same (2018-12-18),
2. 9666849 - Separator having improved porous coating layer having high packing density and electrochemical device comprising the same (2017-05-30),
3. 9647253 - Methods of producing and using microporous membranes (2017-05-09),
4. 9624349 - Polyolefin microporous film and method for producing same (2017-04-18),
5. 9620766 - Multi-layer polyolefin porous membrane, battery separator using same, and process for producing multi-layer polyolefin porous membrane (2017-04-11),
6. 9614212 - Method of producing composite porous membrane (2017-04-04),
7. 9595703 - Polyethylene microporous membrane and process for manufacturing same (2017-03-14),
8. 9502705 - Microporous film, methods for making such film, and use for such film as battery separator film (2016-11-22),
9. 9492965 - Method for producing multi-layer, microporous polyolefin membrane (2016-11-15),
10. 9490463 - Organic/inorganic composite porous film and electrochemical device prepared thereby (2016-11-08),
11. 9431642 - Multi-layer microporous polyolefin membrane and battery separator (2016-08-30),
12. 9419265 - High-strength electrospun microfiber non-woven web for a separator of a secondary battery, a separator comprising the same and a method for manufacturing the same (2016-08-16),
13. 9337461 - Composite porous membrane and method of producing the same (2016-05-10),
14. 9295950 - Microporous membranes, methods for making such membranes, and the use of such membranes as battery separator film (2016-03-29),
15. 9293754 - Battery separator, and battery separator manufacturing method (2016-03-22),
Toray Battery Separator Film Co., Ltd. is a subsidiary of Toray Industries, Inc. It specializes in producing battery separator films used in lithium-ion batteries. The company's extensive experience and advanced technology enable it to provide high-quality, reliable separator films that contribute to the performance and safety of various battery applications. For more information, please visit their official website.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

50 Patents

#1 in Nasushiobara-shi

#1,673 in Japan

#13,575 in the World

...
Nasushiobara-shi, Japan

Toray Battery Separator Film Co., Ltd.

Forward Citations = 65

100 inventors:

goldMedal Kotaro Takita (18 out of 39 patents)

silverMedal Shintaro Kikuchi (17 out of 24 patents)

bronzeMedal Koichi Kono (13 out of 47 patents)

4.  Takeshi Ishihara (12 out of 19 patents)

5.  Patrick Brant (10 out of 141 patents)

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