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For the Inventor, By the Inventor

Tokyo, Japan

Itakura Soki


USPTO Granted Patents = 2

Forward Citations = 37

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2 inventors (with patents filed for the assignee):

goldMedal Allan H Willinger (2 out of 63 patents)

silverMedal Tsuyoshi Itakura (2 out of 13 patents)


2 patents:

1. 5052904 - Aquarium air pump (1991-10-01),
2. 4886093 - Vent valve of an air pump (1989-12-12),
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USPTO Data Jan 1 1976 - Jan 20 2026

2 Patents

#4,066 in Tokyo

#10,981 in Japan

Tokyo, JP
Tokyo, Japan

Itakura Soki

Forward Citations = 37

2 inventors:

goldMedal Allan H Willinger (2 out of 63 patents)

silverMedal Tsuyoshi Itakura (2 out of 13 patents)

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