Tokyo, Japan

Heartseed Inc.


USPTO Granted Patents = 2



Trademarks = 1

Forward Citations = 1

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4 inventors (with patents filed for the assignee):

goldMedal Keiichi Fukuda (2 out of 27 patents)

silverMedal Fumiyuki Hattori (1 out of 6 patents)

bronzeMedal Shinsuke Yuasa (1 out of 5 patents)

4 Akira Kunitomi (1 out of 1 patent)

5 Shugo Tohyama (1 patent)

6 Jun Fujita (47 patents)

7 Hideaki Kanazawa (2 patents)


2 patents:

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USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#4,058 in Tokyo

#10,966 in Japan

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Tokyo, Japan
Forward Citations = 1

4 inventors:

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