Tokyo, Japan

Kubushiki Kaisha Riken


USPTO Granted Patents = 1

Forward Citations = 29

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4 inventors (with patents filed for the assignee):

goldMedal Kiyohide Yoshida (1 out of 32 patents)

silverMedal Tatsuo Miyadera (1 out of 9 patents)

bronzeMedal Akira Abe (1 out of 24 patents)

4 Gyo Muramatsu (1 out of 19 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 = 29

4 inventors:

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