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For the Inventor, By the Inventor

Toyama-ken, Japan

Nakakuro Construction Co., Ltd.


USPTO Granted Patents = 2

Forward Citations = 16

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1 inventor (with patents filed for the assignee):

goldMedal Kenichi Nakakuro (2 out of 2 patents)


2 patents:

1. 7073869 - Shield tunneling machine (2006-07-11),
2. 6332652 - Tunnel excavator with variable pressure water jets (2001-12-25),
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USPTO Data Jan 1 1976 - Dec 23 2025

2 Patents

#5 in Toyama-ken

#10,965 in Japan

...
Toyama-ken, Japan

Nakakuro Construction Co., Ltd.

Forward Citations = 16

1 inventor:

goldMedal Kenichi Nakakuro (2 out of 2 patents)

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