Tokyo, Japan

501 Hoya Corporation


USPTO Granted Patents = 2

Forward Citations = 12

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3 inventors (with patents filed for the assignee):

goldMedal Hisao Kawai (1 out of 13 patents)

silverMedal Takeo Matsudaira (1 out of 7 patents)

bronzeMedal Yasumoto Shimizu (1 out of 5 patents)


2 patents:

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USPTO Data Jan 1 1976 - Dec 2 2025

2 Patents

#4,069 in Tokyo

#10,986 in Japan

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Tokyo, Japan
Forward Citations = 12

3 inventors:

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