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For the Inventor, By the Inventor

Tokyo, Japan

Nippon Carbide Kogyo Kabushiki Kaisha


USPTO Granted Patents = 88



Trademarks = 1

Forward Citations = 1,351

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109 inventors (with patents filed for the assignee):

goldMedal Ikuo Mimura (26 out of 35 patents)

silverMedal Osamu Tanaka (12 out of 15 patents)

bronzeMedal Katsura Ochi (11 out of 12 patents)

4.  Hiroshi Serizawa (9 out of 10 patents)

5.  Masahiro Murotani (6 out of 10 patents)

6.  Keiji Adachi (6 out of 6 patents)

7.  Hiroshi Shibafuchi (6 out of 6 patents)

8.  Masanori Sasaki (5 out of 8 patents)

9.  Yutaka Hamada (5 out of 5 patents)

10.  Kenichi Ishii (5 out of 5 patents)

11.  Masatoshi Maruyama (5 out of 5 patents)

12.  Masami Uemae (5 out of 5 patents)

13.  Yukinobu Hasegawa (5 out of 5 patents)

14.  Akihiro Matsuda (4 out of 4 patents)

15.  Hiroyoshi Shimomura (4 out of 4 patents)


Core Competencies:
Retroreflective Sheeting
Cube Corner Retroreflection
Alumina Ceramic
Integrated Circuit
Microprism Master Mold
Fluorescent Retroreflective Sheet
Waterborne Coating Composition
Optical Elements
Polymer Emulsion
Agricultural Covering Material
Lens Type Retroreflective
Cleaning Material for Metal Die

88 patents:

1. 8956720 - Heat-resistant brittle label (2015-02-17),
2. 8603619 - Heat-resistant brittle label (2013-12-10),
3. 8459806 - Triangular pyramid type cube corner retroreflection article, and its manufacturing method (2013-06-11),
4. 8201953 - Cube corner type retroreflection article (2012-06-19),
5. 8198204 - Alumina ceramic (2012-06-12),
6. 8147075 - Printed image-set retroreflective sheeting (2012-04-03),
7. 7980710 - Retroreflective article (2011-07-19),
8. 7950813 - Composite triangular-pyramidal cube-corner retroreflective sheeting and retroreflective articles (2011-05-31),
9. 7815319 - Triangular-pyramidal cube-corner retroreflective article having curved reflective lateral face (2010-10-19),
10. 7670013 - Triangular-pyramidal cube-corner retroreflective article having curved reflective lateral face (2010-03-02),
11. 7598874 - Integrated-circuit enclosed retroreflective product (2009-10-06),
12. 7584564 - Internally illuminated sign (2009-09-08),
13. 7553784 - Cleaning material for molding metal die, and cleaning method (2009-06-30),
14. 7532124 - Retroreflective display devices (2009-05-12),
15. 7248169 - Recursive-reflective display devices (2007-07-24),
Nippon Carbide Kogyo Kabushiki Kaisha, also known as NCK, is a leading chemical company based in Japan. With a strong focus on research, development, and production of advanced materials, NCK serves various industries including electronics, automotive, and healthcare. They offer a diverse range of products such as carbon materials, ceramics, and specialty chemicals. NCK is committed to providing innovative solutions and contributing to the advancement of technology and societal well-being.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 23 2025

88 Patents

#519 in Tokyo

#1,191 in Japan

#8,404 in the World

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Tokyo, Japan

Nippon Carbide Kogyo Kabushiki Kaisha

Forward Citations = 1,351

109 inventors:

goldMedal Ikuo Mimura (26 out of 35 patents)

silverMedal Osamu Tanaka (12 out of 15 patents)

bronzeMedal Katsura Ochi (11 out of 12 patents)

4.  Hiroshi Serizawa (9 out of 10 patents)

5.  Masahiro Murotani (6 out of 10 patents)

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