Yoshi Hattori

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for replenishing a developing device with tone...
- Patent number 7,289,748
- Issue date Oct 30, 2007
- Ricoh Company, Ltd.
- Takaaki Yanagisawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Apparatus and method for replenishing a developing device with tone...
- Patent number 7,218,880
- Issue date May 15, 2007
- Ricoh Company, Ltd.
- Takaaki Yanagisawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Apparatus and method for replenishing a developing device with tone...
- Patent number 6,748,190
- Issue date Jun 8, 2004
- Ricoh Company, Ltd.
- Takaaki Yanagisawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Apparatus and method for replenishing a developing device with tone...
- Patent number 6,567,637
- Issue date May 20, 2003
- Ricoh Company, Ltd.
- Takaaki Yanagisawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and method for replenishing a developing device with tone...
- Publication number 20060099006
- Publication date May 11, 2006
- Takaaki Yanagisawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Apparatus and method for replenishing a developing device with tone...
- Publication number 20040197120
- Publication date Oct 7, 2004
- Takaaki Yanagisawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Apparatus and method for replenishing a developing device with tone...
- Publication number 20030198487
- Publication date Oct 23, 2003
- Takaaki Yanagisawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Apparatus and method for replenishing a developing device
- Publication number 20010021326
- Publication date Sep 13, 2001
- RICOH COMPANY, LTD.
- Takaaki Yanagisawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC