Takehisa KITAKAWA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Display apparatus, display system, display control method, and non-...
- Patent number 11,694,585
- Issue date Jul 4, 2023
- Ricoh Company, Ltd.
- Masaru Kumagai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Power supply control device, image forming apparatus, and method of...
- Patent number 8,874,278
- Issue date Oct 28, 2014
- Ricoh Company, Limited
- Takehisa Kitakawa
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
DISPLAY APPARATUS, DISPLAY SYSTEM, DISPLAY CONTROL METHOD, AND NON-...
- Publication number 20220208040
- Publication date Jun 30, 2022
- Masaru KUMAGAI
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
POWER SUPPLY CONTROL DEVICE, IMAGE FORMING APPARATUS, AND METHOD OF...
- Publication number 20110089922
- Publication date Apr 21, 2011
- Takehisa KITAKAWA
- G06 - COMPUTING CALCULATING COUNTING