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For the Inventor, By the Inventor

Tokyo, Japan

Isao Corporation


USPTO Granted Patents = 3

% Expired Patents = 33.3

Forward Citations = 50

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6 inventors (with patents filed for the assignee):

goldMedal Toshiki Maezawa (2 out of 2 patents)

silverMedal Takahiro Nishida (2 out of 2 patents)

bronzeMedal Hiroyuki Kikuchi (2 out of 33 patents)

4.  Hiroyuki Torii (1 out of 1 patent)

5.  Masaomi Sato (1 out of 2 patents)

6.  Tetsuo Takakura (1 out of 1 patent)


3 patents:

1. 10659461 - System, method, and recording medium storing program for authentication (2020-05-19),
2. 10594485 - System, method, program, and recording medium storing program for authentication (2020-03-17),
3. 6981021 - Position-link chat system, position-linked chat method, and computer product (2005-12-27),
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USPTO Data Jan 1 1976 - Sep 29 2026

3 Patents

#3,541 in Tokyo

#8,915 in Japan

Tokyo, JP
Tokyo, Japan

Isao Corporation

Forward Citations = 50

6 inventors:

goldMedal Toshiki Maezawa (2 out of 2 patents)

silverMedal Takahiro Nishida (2 out of 2 patents)

bronzeMedal Hiroyuki Kikuchi (2 out of 33 patents)

4.  Hiroyuki Torii (1 out of 1 patent)

5.  Masaomi Sato (1 out of 2 patents)

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