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For the Inventor, By the Inventor

Sendai, Japan

Pioneer System Technologies Corporation


USPTO Granted Patents = 2

% Expired Patents = 100.0


Forward Citations = 3

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5 inventors (with patents filed for the assignee):

goldMedal Shunichi Kumagai (2 out of 3 patents)

silverMedal Takuya Hirose (2 out of 3 patents)

bronzeMedal Masayoshi Suzuki (2 out of 2 patents)

4.  Reiji Matsumoto (2 out of 9 patents)

5.  Hajime Adachi (2 out of 7 patents)

6.  Kota Kimura (0 patent)


2 patents:

1. 7822541 - Map creation device and navigation device (2010-10-26),
2. 7633500 - Plotting method, plotting program, and plotting equipment (2009-12-15),
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USPTO Data Jan 1 1976 - Sep 29 2026

2 Patents

#27 in Sendai

#11,121 in Japan

Sendai, JP
Sendai, Japan

Pioneer System Technologies Corporation

Forward Citations = 3

5 inventors:

goldMedal Shunichi Kumagai (2 out of 3 patents)

silverMedal Takuya Hirose (2 out of 3 patents)

bronzeMedal Masayoshi Suzuki (2 out of 2 patents)

4.  Reiji Matsumoto (2 out of 9 patents)

5.  Hajime Adachi (2 out of 7 patents)

Please report any incorrect information to [email protected]
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