Tokyo, Japan

Sigma Systems Co., Ltd.


USPTO Granted Patents = 1

Forward Citations = 60

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6 inventors (with patents filed for the assignee):

goldMedal Hajime Asama (1 out of 7 patents)

silverMedal Isao Endo (1 out of 32 patents)

bronzeMedal Hayato Kaetsu (1 out of 5 patents)

4 Shin-ya Kotosaka (1 out of 2 patents)

5 Sakae Miyao (1 out of 1 patent)

6 Atsusi Nakamura (1 out of 1 patent)


1 patent:

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USPTO Data Jan 1 1976 - Dec 2 2025

1 Patents

#5,751 in Tokyo

#15,589 in Japan

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Tokyo, Japan
Forward Citations = 60

6 inventors:

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