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For the Inventor, By the Inventor

Tokyo, Japan

Mitsubishi Rayon Company, Limited


USPTO Granted Patents = 1,357



Trademarks = 40

Forward Citations = 13,603

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1,447 inventors (with patents filed for the assignee):

goldMedal Isao Sasaki (69 out of 69 patents)

silverMedal Naoki Yamamoto (60 out of 63 patents)

bronzeMedal Kazuo Kishida (51 out of 51 patents)

4.  Akira Yanagase (38 out of 39 patents)

5.  Hiroshi Mori (34 out of 34 patents)

6.  Kenji Kushi (31 out of 31 patents)

7.  Akira Nakata (30 out of 30 patents)

8.  Kozi Nishida (29 out of 30 patents)

9.  Tomoyoshi Yamashita (27 out of 27 patents)

10.  Motomu Oh-Kita (27 out of 27 patents)

11.  Takashi Yamamoto (25 out of 41 patents)

12.  Noriyuki Tajiri (25 out of 25 patents)

13.  Masao Kobayashi (23 out of 23 patents)

14.  Teruhiko Sugimori (22 out of 22 patents)

15.  Katsuhiko Shimada (21 out of 21 patents)


Core Competencies:
Energy Ray-Curable Resin
Fiber-Reinforced Composite
Polymer Electrolyte Fuel Cell
Hollow Porous Membrane
Thermoplastic Resin Composition
Solid Electrolytic Capacitor
Acrylic Resin Composition
Porous Composite Membrane
Optical Article Manufacturing
Graft Copolymer
Light Guide Technology
Nanoimprinting Mold

1,357 patents:

1. 9718910 - Article and active energy ray-curable resin composition (2017-08-01),
2. 9705137 - Porous electrode substrate, method for manufacturing same, precursor sheet, membrane electrode assembly, and polymer electrolyte fuel cell (2017-07-11),
3. 9701815 - Resin composition, prepreg using the same, and fiber-reinforced composite material (2017-07-11),
4. 9696464 - Mold having an uneven surface structure, optical article, manufacturing method therefor, transparent substrate for surface light emitter and surface light emitter (2017-07-04),
5. 9695355 - Production method of thermoplastic resin composition, molded body, and light emission body (2017-07-04),
6. 9694327 - Hollow porous membrane (2017-07-04),
7. 9694326 - Composite hollow fiber membrane and hollow fiber membrane module (2017-07-04),
8. 9694313 - Composite hollow fiber membrane and hollow fiber membrane module (2017-07-04),
9. 9688801 - Vinyl polymer powder, curable resin composition and cured substance (2017-06-27),
10. 9679673 - Conductive composition, conductor and solid electrolytic capacitor using conductive composition (2017-06-13),
11. 9671531 - Thermoplastic resin composition for light reflector, formed article for light reflector, light reflector, and method for producing formed article for light reflector (2017-06-06),
12. 9670111 - Catalyst for producing isobutylene and method for producing isobutylene using the same (2017-06-06),
13. 9663603 - Curable composition and polymer (2017-05-30),
14. 9657169 - Graft copolymer, thermoplastic resin composition, and molded article of said resin composition (2017-05-23),
15. 9649600 - Method for manufacturing a porous composite membrane (2017-05-16),
Mitsubishi Rayon Company, Limited is a leading global manufacturer and supplier of chemical and specialty products. With expertise in a wide range of industries including materials, fibers, electronics, healthcare, and more, Mitsubishi Rayon strives to create innovative solutions that contribute to a sustainable future. Visit their website for more information and to explore their extensive product portfolio.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 6 2026

1,357 Patents

#78 in Tokyo

#160 in Japan

#714 in the World

...
Tokyo, Japan

Mitsubishi Rayon Company, Limited

Forward Citations = 13,603

1,447 inventors:

goldMedal Isao Sasaki (69 out of 69 patents)

silverMedal Naoki Yamamoto (60 out of 63 patents)

bronzeMedal Kazuo Kishida (51 out of 51 patents)

4.  Akira Yanagase (38 out of 39 patents)

5.  Hiroshi Mori (34 out of 34 patents)

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