Kiyotaka Sakai

Person

Kanagawa-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Developer bearing member, developing device, process cartridge and...
- Patent number 7,599,650
- Issue date Oct 6, 2009
- Ricoh Company Limited
- Shunji Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including a magnetic brush developing syste...
- Patent number 7,457,570
- Issue date Nov 25, 2008
- Ricoh Company, Ltd.
- Tadashi Kasai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a detachable cartridge including a p...
- Patent number 7,272,342
- Issue date Sep 18, 2007
- Ricoh Co., Ltd.
- Hiroyuki Nagashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for image forming capable of performing a stab...
- Patent number 7,228,093
- Issue date Jun 5, 2007
- Ricoh Company, Ltd.
- Kiyotaka Sakai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 7,212,773
- Issue date May 1, 2007
- Ricoh Company, Ltd.
- Kazuhisa Sudo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer regulating member, developing device, electrophotographic...
- Patent number 7,043,182
- Issue date May 9, 2006
- Ricoh Company, Ltd.
- Kiyotaka Sakai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
DEVELOPER BEARING MEMBER, DEVELOPING DEVICE, PROCESS CARTRIDGE AND...
- Publication number 20070104516
- Publication date May 10, 2007
- Shunji KATOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus having a detachable cartridge including a p...
- Publication number 20060275053
- Publication date Dec 7, 2006
- Hiroyuki Nagashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20060029435
- Publication date Feb 9, 2006
- Tadashi Kasai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Method and apparatus for image forming capable of performing a stab...
- Publication number 20050281589
- Publication date Dec 22, 2005
- Kiyotaka Sakai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20050111882
- Publication date May 26, 2005
- Kazuhisa Sudo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus having a detachable cartridge including a p...
- Publication number 20050031374
- Publication date Feb 10, 2005
- Hiroyuki Nagashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developer regulating member, developing device, electrophotographic...
- Publication number 20040114971
- Publication date Jun 17, 2004
- Kiyotaka Sakai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Kiyotaka Sakai

Person

Patents Grantslast 30 patents

Developer bearing member, developing device, process cartridge and...

Image forming apparatus including a magnetic brush developing syste...

Image forming apparatus having a detachable cartridge including a p...

Method and apparatus for image forming capable of performing a stab...

Image forming apparatus

Developer regulating member, developing device, electrophotographic...

Patents Applicationslast 30 patents

DEVELOPER BEARING MEMBER, DEVELOPING DEVICE, PROCESS CARTRIDGE AND...

Image forming apparatus having a detachable cartridge including a p...

Image forming apparatus

Method and apparatus for image forming capable of performing a stab...

Image forming apparatus

Image forming apparatus having a detachable cartridge including a p...

Developer regulating member, developing device, electrophotographic...