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For the Inventor, By the Inventor

Fujisawa, Japan

Nichigi Engineering Co., Ltd.


USPTO Granted Patents = 2

Forward Citations = 27

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2 inventors (with patents filed for the assignee):

goldMedal Susumu Watanabe (2 out of 20 patents)

silverMedal Tomoaki Sumita (1 out of 2 patents)


2 patents:

1. 6311714 - Seismic detecting shut-down valve device (2001-11-06),
2. 6253391 - Safety system at a discharge port in a pool (2001-07-03),
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USPTO Data Jan 1 1976 - Dec 30 2025

2 Patents

#13 in Fujisawa

#10,975 in Japan

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Fujisawa, Japan

Nichigi Engineering Co., Ltd.

Forward Citations = 27

2 inventors:

goldMedal Susumu Watanabe (2 out of 20 patents)

silverMedal Tomoaki Sumita (1 out of 2 patents)

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