Shiro Kofuji

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Ebina-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Halftoning device and halftoning method and laser printer including...
- Patent number 7,948,659
- Issue date May 24, 2011
- Ricoh Company, Ltd.
- Takeshi Shibuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image processing apparatus and image processing method
- Patent number 7,734,103
- Issue date Jun 8, 2010
- Ricoh Company, Ltd.
- Nobuyuki Sato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color printing apparatus
- Patent number 7,301,669
- Issue date Nov 27, 2007
- Ricoh Printing Systems, Ltd.
- Toshiyuki Yamada
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Halftoning device and halftoning method
- Publication number 20070046999
- Publication date Mar 1, 2007
- Ricoh Printing Systems, Ltd.
- Takeshi Shibuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Image processing apparatus and image processing method
- Publication number 20070031047
- Publication date Feb 8, 2007
- Nobuyuki Sato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Printing control system and method
- Publication number 20060215200
- Publication date Sep 28, 2006
- Yasuo Mutsuro
- G06 - COMPUTING CALCULATING COUNTING