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For the Inventor, By the Inventor

Kamakura, Japan

Ecti Kabushiki Kaisha


USPTO Granted Patents = 3

Forward Citations = 49

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2 inventors (with patents filed for the assignee):

goldMedal Yoshihiro Ishizaki (3 out of 7 patents)

silverMedal Takayuki Matsui (2 out of 4 patents)


3 patents:

1. 5720172 - Regenerative type engine with fluid control mechanism (1998-02-24),
2. 5435136 - Pulse tube heat engine (1995-07-25),
3. 5269147 - Pulse tube refrigerating system (1993-12-14),
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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#3 in Kamakura

#8,766 in Japan

...
Kamakura, Japan

Ecti Kabushiki Kaisha

Forward Citations = 49

2 inventors:

goldMedal Yoshihiro Ishizaki (3 out of 7 patents)

silverMedal Takayuki Matsui (2 out of 4 patents)

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