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For the Inventor, By the Inventor

Kobe, Japan

Tomoe System Inc.


USPTO Granted Patents = 2

% Expired Patents = 50.0

Forward Citations = 6

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6 inventors (with patents filed for the assignee):

goldMedal Eiji Akahane (1 out of 13 patents)

silverMedal Sadao Yamakage (1 out of 1 patent)

bronzeMedal Keiichi Araki (1 out of 2 patents)

4.  Yusuke Harayama (1 out of 5 patents)

5.  Mikiya Yagi (1 out of 8 patents)

6.  Seiji Hiraoka (1 out of 1 patent)


2 patents:

1. 9181729 - Lock kit and key rotor housed in rotor case (2015-11-10),
2. 6991283 - Shutter type guard apparatus for construction machine (2006-01-31),
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USPTO Data Jan 1 1976 - Sep 15 2026

2 Patents

#76 in Kobe

#11,270 in Japan

Kobe, JP
Kobe, Japan

Tomoe System Inc.

Forward Citations = 6

6 inventors:

goldMedal Eiji Akahane (1 out of 13 patents)

silverMedal Sadao Yamakage (1 out of 1 patent)

bronzeMedal Keiichi Araki (1 out of 2 patents)

4.  Yusuke Harayama (1 out of 5 patents)

5.  Mikiya Yagi (1 out of 8 patents)

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