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Asahi Kasei E-materials Corporation

USPTO Granted Patents = 86

CIPO Patents = 2

EPO Patents = 32

Trademarks = 10

Forward Citations = 193

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141 inventors (with patents filed for the assignee):

Hiroshi Murata (7 out of 67 patents)

Keitaro Ameyama (7 out of 8 patents)

Tadashi Ino (6 out of 22 patents)

4. Jun Koike (6 out of 12 patents)

5. Naoto Miyake (6 out of 16 patents)

6. Masahiro Kondo (6 out of 28 patents)

7. Hiroaki Takanohashi (5 out of 8 patents)

8. Masahiro Ohashi (5 out of 7 patents)

9. Yuzuru Sakakibara (5 out of 6 patents)

10. Masaki Ishikawa (5 out of 25 patents)

11. Fujito Yamaguchi (5 out of 10 patents)

12. Yuki Uchida (4 out of 19 patents)

13. Naoki Sakamoto (4 out of 17 patents)

14. Hiroshi Hatayama (4 out of 13 patents)

15. Masaaki Endo (4 out of 21 patents)

Core Competencies:

Electricity Storage Devices

Polyolefin Microporous Membrane

Redox Flow Secondary Battery

Semiconductor Light Emitting Device

Coating Composition

Porous Membrane

Layered Product

Epitaxial Wafer for LEDs

Fluorine-Based Polymer Electrolyte

Self-Supporting Film

Heat-Reactive Resist Material

Light Extraction Product

86 patents: Sort by Forward Citations

1. 10811659 - Separator for electricity storage device, laminate and porous film (2020-10-20),

2. 10766169 - Resin mold (2020-09-08),

3. 10693114 - Polyolefin-based porous film and method for producing the same (2020-06-23),

4. 10680223 - Laminated separator, polyolefin microporous membrane, and separator for electricity storage device (2020-06-09),

5. 10578962 - Self-supporting film, self-supporting structure, method for manufacturing self-supporting film, and pellicle (2020-03-03),

6. 10276849 - Separator including polyolefin microporous membrane and inorganic porous layer, and nonaqueous electrolyte battery using the same (2019-04-30),

7. 10246567 - Polyolefin microporous film (2019-04-02),

8. 10211474 - Redox flow secondary battery and electrolyte membrane for redox flow secondary battery (2019-02-19),

9. 10189781 - Onium salt and composition comprising the same (2019-01-29),

10. 10153473 - Separator for electricity storage device, laminate and porous film (2018-12-11),

11. 9991488 - Polyolefin-based porous film and method for producing the same (2018-06-05),

12. 9966583 - Laminated polyolefin microporous membrane including propylene copolymer and method of producing the same (2018-05-08),

13. 9941498 - Polyolefin-based porous film and method for producing the same (2018-04-10),

14. 9911960 - Porous membrane and multilayer porous membrane (2018-03-06),

15. 9911959 - Porous membrane and multilayer porous membrane (2018-03-06),

Asahi Kasei E-materials Corporation is a leading provider of high-performance plastic compounds and specialty polymers. With decades of experience and expertise, they offer a wide range of materials that cater to various industries such as automotive, electronics, healthcare, and more. Their commitment to innovation and sustainability has made them a trusted partner for businesses worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

86 Patents

#525 in Tokyo

#1,209 in Japan

#8,583 in the World

Asahi Kasei E-materials Corporation

Forward Citations = 193

141 inventors:

Hiroshi Murata (7 out of 67 patents)

Keitaro Ameyama (7 out of 8 patents)

Tadashi Ino (6 out of 22 patents)

4. Jun Koike (6 out of 12 patents)

5. Naoto Miyake (6 out of 16 patents)

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