Tokyo, Japan

Idemitsu Koasn Co., Ltd.


USPTO Granted Patents = 1

Forward Citations = 0

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4 inventors (with patents filed for the assignee):

goldMedal Hirokatsu Ito (1 out of 69 patents)

silverMedal Yuichiro Kawamura (1 out of 48 patents)

bronzeMedal Masahiro Kawamura (1 out of 144 patents)

4 Hitoshi Kuma (1 out of 44 patents)


1 patent:

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USPTO Data Jan 1 1976 - Dec 30 2025

1 Patents

#5,740 in Tokyo

#15,554 in Japan

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Tokyo, Japan
Forward Citations = 0

4 inventors:

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