Katsumi Masuda

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Development device, and process cartridge and image forming apparat...
- Patent number 8,824,932
- Issue date Sep 2, 2014
- Ricoh Company, Ltd.
- Katsumi Masuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device, process cartridge, and image forming apparatus...
- Patent number 8,682,230
- Issue date Mar 25, 2014
- Ricoh Company, Ltd.
- Nobuyuki Taguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing unit, image forming apparatus incorporating same, and pr...
- Patent number 8,331,834
- Issue date Dec 11, 2012
- Ricoh Company, Ltd.
- Kyohta Koetsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, process cartridge, and image forming apparatus
- Patent number 8,326,189
- Issue date Dec 4, 2012
- Ricoh Company, Limited
- Yoshiyuki Fukuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer regulating member in a developing unit, process cartridge...
- Patent number 8,135,315
- Issue date Mar 13, 2012
- Ricoh Company, Ltd.
- Takamasa Ozeki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, and image forming apparatus and process cartridg...
- Patent number 7,813,680
- Issue date Oct 12, 2010
- Ricoh Company, Ltd.
- Katsumi Masuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
Information Patent Grant
Image forming apparatus using a roller type charging system
- Patent number 5,946,529
- Issue date Aug 31, 1999
- Ricoh Company, Ltd.
- Masumi Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic method and apparatus including a toner recycle...
- Patent number 5,878,317
- Issue date Mar 2, 1999
- Ricoh Company, Ltd.
- Katsumi Masuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS...
- Publication number 20120057907
- Publication date Mar 8, 2012
- Nobuyuki Taguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, AND PROCESS CARTRIDGE AND IMAGE FORMING APPARAT...
- Publication number 20110194874
- Publication date Aug 11, 2011
- Katsumi Masuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20110058858
- Publication date Mar 10, 2011
- Yoshiyuki Fukuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING UNIT, IMAGE FORMING APPARATUS INCORPORATING SAME, AND PR...
- Publication number 20090245889
- Publication date Oct 1, 2009
- Kyohta Koetsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING UNIT, PROCESS CARTRIDGE INCLUDING SAME, AND IMAGE FORMIN...
- Publication number 20090245882
- Publication date Oct 1, 2009
- Takamasa OZEKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDG...
- Publication number 20090245887
- Publication date Oct 1, 2009
- Katsumi Masuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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

Katsumi Masuda

Person

Patents Grantslast 30 patents

Development device, and process cartridge and image forming apparat...

Development device, process cartridge, and image forming apparatus...

Developing unit, image forming apparatus incorporating same, and pr...

Developing device, process cartridge, and image forming apparatus

Developer regulating member in a developing unit, process cartridge...

Developing device, and image forming apparatus and process cartridg...

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...

Image forming apparatus using a roller type charging system

Electrophotographic method and apparatus including a toner recycle...

Patents Applicationslast 30 patents

DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS...

DEVELOPMENT DEVICE, AND PROCESS CARTRIDGE AND IMAGE FORMING APPARAT...

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

DEVELOPING UNIT, IMAGE FORMING APPARATUS INCORPORATING SAME, AND PR...

DEVELOPING UNIT, PROCESS CARTRIDGE INCLUDING SAME, AND IMAGE FORMIN...

DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDG...

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...