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For the Inventor, By the Inventor

Tokyo, Japan

Nakagawa Chemical, Inc.


USPTO Granted Patents = 2


Trademarks = 3

Forward Citations = 1

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6 inventors (with patents filed for the assignee):

goldMedal Koichi Nakagawa (2 out of 54 patents)

silverMedal Hitoshi Komatsubara (1 out of 1 patent)

bronzeMedal Shinji Kobayashi (1 out of 1 patent)

4.  Hitoshi Komatsubara (0 patent)

5.  Shinji Kobayashi (0 patent)

6.  Yukiya Nakagawa (0 patent)


2 patents:

1. 12093335 - Server, system, and display data transmission method (2024-09-17),
2. 9253370 - Normalization method for a value of an equivalent lightness and a value of a degree of vividness of an arbitrary color, tone type identification method, munsell value calculating method, image formation method and interface screen display device (2016-02-02),
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USPTO Data Jan 1 1976 - Dec 9 2025

2 Patents

#4,070 in Tokyo

#10,988 in Japan

...
Tokyo, Japan

Nakagawa Chemical, Inc.

Forward Citations = 1

6 inventors:

goldMedal Koichi Nakagawa (2 out of 54 patents)

silverMedal Hitoshi Komatsubara (1 out of 1 patent)

bronzeMedal Shinji Kobayashi (1 out of 1 patent)

4.  Hitoshi Komatsubara (0 patent)

5.  Shinji Kobayashi (0 patent)

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