For the Inventor, By the Inventor

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Kawasaki, Japan

Routrek Networks, Inc.

USPTO Granted Patents = 2

EPO Patents = 1

Forward Citations = 5

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7 inventors (with patents filed for the assignee):

Hironao Tokitsu (2 out of 2 patents)

Kiyoshi Ozawa (1 out of 8 patents)

Shunrokuro Fujiwara (1 out of 1 patent)

4. Shinichi Sasaki (1 out of 1 patent)

5. Eiji Kita (1 out of 1 patent)

6. Hiroshi Taketazu (1 out of 1 patent)

7. Takehiro Shirai (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 10561081 - Fertigation system, fertigation control server, salts accumulation determination method, and soil EC sensor (2020-02-18),

2. 7035941 - Method of and device for deciding network address, and computer product (2006-04-25),

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USPTO Data Jan 1 1976 - Sep 29 2026

2 Patents

#118 in Kawasaki

#11,121 in Japan

Kawasaki, Japan

Routrek Networks, Inc.

Forward Citations = 5

7 inventors:

Hironao Tokitsu (2 out of 2 patents)

Kiyoshi Ozawa (1 out of 8 patents)

Shunrokuro Fujiwara (1 out of 1 patent)

4. Shinichi Sasaki (1 out of 1 patent)

5. Eiji Kita (1 out of 1 patent)

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