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For the Inventor, By the Inventor

Tokyo, Japan

Hitachi, Ltd. (501)


USPTO Granted Patents = 1

Forward Citations = 15

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2 inventors (with patents filed for the assignee):

goldMedal Akio Yamamoto (1 out of 49 patents)

silverMedal Toshio Nagashima (1 out of 16 patents)


1 patent:

1. 4912520 - Mixer circuit for use in a tuner of a television set or the like (1990-03-27),
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USPTO Data Jan 1 1976 - Oct 6 2026

1 Patents

#6,086 in Tokyo

#15,732 in Japan

Tokyo, JP
Tokyo, Japan

Hitachi, Ltd. (501)

Forward Citations = 15

2 inventors:

goldMedal Akio Yamamoto (1 out of 49 patents)

silverMedal Toshio Nagashima (1 out of 16 patents)

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