Tokyo, Japan

Hitachi Ltd. & Hitachi Video Eng.


USPTO Granted Patents = 1

Forward Citations = 18

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6 inventors (with patents filed for the assignee):

goldMedal Kenji Katsumata (1 out of 44 patents)

silverMedal Isao Nakagawa (1 out of 30 patents)

bronzeMedal Masato Sugiyama (1 out of 19 patents)

4 Shigeru Hirahata (1 out of 31 patents)

5 Sunao Suzuki (1 out of 10 patents)

6 Akihide Okuda (1 out of 7 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 = 18

6 inventors:

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