Tokyo, Japan

Pentax Industrial Instruments Co., Ltd.


USPTO Granted Patents = 3

Forward Citations = 69

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6 inventors (with patents filed for the assignee):

goldMedal Homu Takayama (2 out of 18 patents)

silverMedal Takanori Yachi (2 out of 5 patents)

bronzeMedal Masatoshi Sakurai (2 out of 2 patents)

4 Shunji Matsuo (2 out of 34 patents)

5 Eiji Hayamizu (1 out of 78 patents)

6 Masayoshi Ootsuki (1 out of 1 patent)


3 patents:

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USPTO Data Jan 1 1976 - Dec 9 2025

3 Patents

#3,271 in Tokyo

#8,780 in Japan

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Tokyo, Japan
Forward Citations = 69

6 inventors:

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