Tokyo, Japan

Kokusan Chemical Works Limited


USPTO Granted Patents = 1

Forward Citations = 7

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6 inventors (with patents filed for the assignee):

goldMedal Susumu Watanabe (1 out of 11 patents)

silverMedal Kunio Matsumoto (1 out of 8 patents)

bronzeMedal Kiyoharu Takahashi (1 out of 2 patents)

4 Akira Ohtsuka (1 out of 2 patents)

5 Tsutomu Hirata (1 out of 3 patents)

6 Yoshitaka Kagimoto (1 out of 2 patents)


1 patent:

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USPTO Data Jan 1 1976 - Dec 9 2025

1 Patents

#5,752 in Tokyo

#15,591 in Japan

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Tokyo, Japan
Forward Citations = 7

6 inventors:

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