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For the Inventor, By the Inventor

Yamagata, Japan

Happyjapan, Inc.


USPTO Granted Patents = 3


Forward Citations = 5

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8 inventors (with patents filed for the assignee):

goldMedal Shouhei Matsumoto (3 out of 3 patents)

silverMedal Masayoshi Yokoo (3 out of 11 patents)

bronzeMedal Keitaro Harada (3 out of 10 patents)

4.  Yoshinori Arai (2 out of 2 patents)

5.  Mitsuo Koizumi (2 out of 2 patents)

6.  Satoshi Ueno (2 out of 3 patents)

7.  Shinichi Hasebe (1 out of 1 patent)

8.  Fumiaki Togashi (1 out of 1 patent)


3 patents:

1. 10527669 - IC test system (2020-01-07),
2. 10473715 - IC handler (2019-11-12),
3. 10222413 - IC handler (2019-03-05),
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USPTO Data Jan 1 1976 - Sep 29 2026

3 Patents

#20 in Yamagata

#8,915 in Japan

Yamagata, JP
Yamagata, Japan

Happyjapan, Inc.

Forward Citations = 5

8 inventors:

goldMedal Shouhei Matsumoto (3 out of 3 patents)

silverMedal Masayoshi Yokoo (3 out of 11 patents)

bronzeMedal Keitaro Harada (3 out of 10 patents)

4.  Yoshinori Arai (2 out of 2 patents)

5.  Mitsuo Koizumi (2 out of 2 patents)

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