For the Inventor, By the Inventor

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The Ritsumelkan Trust

USPTO Granted Patents = 1

Forward Citations = 0

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5 inventors (with patents filed for the assignee):

Takakuni Douseki (1 out of 17 patents)

Kazuma Kitamura (1 out of 1 patent)

Kenichi Sakuma (1 out of 10 patents)

4. Naoto Hanyu (1 out of 7 patents)

5. Hiroshi Fukui (1 out of 92 patents)

1 patent: Sort by Forward Citations

1. 8891815 - Invisible information embedding apparatus, invisible information detecting apparatus, invisible information embedding method, invisible information detecting method, and storage medium (2014-11-18),

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USPTO Data Jan 1 1976 - Dec 23 2025

1 Patents

#311 in Kyoto 615-0031

#15,539 in Japan

The Ritsumelkan Trust

Forward Citations = 0

5 inventors:

Takakuni Douseki (1 out of 17 patents)

Kazuma Kitamura (1 out of 1 patent)

Kenichi Sakuma (1 out of 10 patents)

4. Naoto Hanyu (1 out of 7 patents)

5. Hiroshi Fukui (1 out of 92 patents)

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