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For the Inventor, By the Inventor

Tokyo, Japan

Pumpkin House Incorporated


USPTO Granted Patents = 3

Forward Citations = 150

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3 inventors (with patents filed for the assignee):

goldMedal Minoru Sasaki (2 out of 14 patents)

silverMedal Hideki Imai (1 out of 8 patents)

bronzeMedal Hiroharu Yoshikawa (1 out of 1 patent)


3 patents:

1. 7272230 - Encryption system and control method thereof (2007-09-18),
2. 5870477 - Enciphering/deciphering device and method, and encryption/decryption (1999-02-09),
3. 5512977 - Copying machine with encryption function (1996-04-30),
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USPTO Data Jan 1 1976 - Jan 6 2026

3 Patents

#3,263 in Tokyo

#8,771 in Japan

...
Tokyo, Japan

Pumpkin House Incorporated

Forward Citations = 150

3 inventors:

goldMedal Minoru Sasaki (2 out of 14 patents)

silverMedal Hideki Imai (1 out of 8 patents)

bronzeMedal Hiroharu Yoshikawa (1 out of 1 patent)

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