Masayuki OHSAWA

Person

Atsugishi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnet roller, developer bearer, development device, process cartri...
- Patent number 8,958,729
- Issue date Feb 17, 2015
- Ricoh Company, Ltd.
- Takashi Innami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
Develop roller, develop unit, process cartridge, and image forming...
- Patent number 8,731,444
- Issue date May 20, 2014
- Ricoh Company, Ltd.
- Masayuki Ohsawa
- 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
Magnet roller, developer holder element, develop unit, process cart...
- Patent number 8,600,271
- Issue date Dec 3, 2013
- Ricoh Company, Ltd.
- Takashi Innami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development roller, development device, process cartridge and image...
- Patent number 8,565,652
- Issue date Oct 22, 2013
- Ricoh Company, Ltd.
- Takumi Terasaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic particle carrying device, and developing unit, process car...
- Patent number 8,535,116
- Issue date Sep 17, 2013
- Ricoh Company, Ltd.
- Hiroya Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic roller and manufacturing method thereof, developer carrier...
- Patent number 8,500,615
- Issue date Aug 6, 2013
- Ricoh Company, Ltd.
- Tsuyoshi Imamura
- 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
Development roller, development device, process cartridge and image...
- Patent number 8,135,316
- Issue date Mar 13, 2012
- Ricoh Company, Ltd.
- Toshio Kojima
- 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
Magnet roller and method for the same, magnetic particle-support me...
- Patent number 8,023,867
- Issue date Sep 20, 2011
- Ricoh Company, Ltd.
- Yoshiyuki Takano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic field generating member and manufacturing method thereof,...
- Patent number 7,917,067
- Issue date Mar 29, 2011
- Ricoh Company, Ltd.
- Yoshiyuki Takano
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Developer carrier, development device, process cartridge, and image...
- Patent number 7,907,876
- Issue date Mar 15, 2011
- Ricoh Company, Ltd.
- Masayuki Ohsawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic particle carrying device, and developing unit, process car...
- Patent number 7,899,374
- Issue date Mar 1, 2011
- Ricoh Company, Ltd.
- Hiroya Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of manufacturing a hollow body used in an image forming appa...
- Patent number 7,891,094
- Issue date Feb 22, 2011
- Ricoh Company, Ltd.
- Tsuyoshi Imamura
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Magnetic roller, developer carrier, developing device, process cart...
- Patent number 7,890,030
- Issue date Feb 15, 2011
- Ricoh Company, Ltd.
- Takashi Innami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer holding member, development device, process cartridge, im...
- Patent number 7,664,441
- Issue date Feb 16, 2010
- Ricoh Company, Ltd.
- Tsuyoshi Imamura
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Developing device, process cartridge and image forming apparatus
- Patent number 7,565,098
- Issue date Jul 21, 2009
- Ricoh Company, Ltd.
- Masayuki Ohsawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
MAGNET ROLLER, DEVELOPER BEARER, DEVELOPMENT DEVICE, PROCESS CARTRI...
- Publication number 20130236216
- Publication date Sep 12, 2013
- Takashi Innami
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
DEVELOPMENT ROLLER, DEVELOPMENT DEVICE, PROCESS CARTRIDGE AND IMAGE...
- Publication number 20120294655
- Publication date Nov 22, 2012
- RICOH COMPANY, LTD.
- Takumi TERASAKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
DEVELOP ROLLER, DEVELOP UNIT, PROCESS CARTRIDGE, AND IMAGE FORMING...
- Publication number 20110274471
- Publication date Nov 10, 2011
- RICOH COMPANY, LTD.
- Masayuki OHSAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
MAGNET ROLLER, DEVELOPER HOLDER ELEMENT, DEVELOP UNIT, PROCESS CART...
- Publication number 20110262190
- Publication date Oct 27, 2011
- RICOH COMPANY, LTD.
- Takashi INNAMI
- 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
MAGNETIC PARTICLE CARRYING DEVICE, AND DEVELOPING UNIT, PROCESS CAR...
- Publication number 20110130074
- Publication date Jun 2, 2011
- Hiroya ABE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT ROLLER, DEVELOPMENT DEVICE, PROCESSING CARTRIDGE AND IM...
- Publication number 20100158578
- Publication date Jun 24, 2010
- RICOH COMPANY, LTD.
- Toshio Kojima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
METHOD OF MANUFACTURING A HOLLOW BODY USED IN AN IMAGE FORMING APPA...
- Publication number 20100077588
- Publication date Apr 1, 2010
- Tsuyoshi Imamura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER CARRIER, DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE...
- Publication number 20100067959
- Publication date Mar 18, 2010
- Masayuki Ohsawa
- 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
MAGNETIC ROLLER, DEVELOPER CARRIER, DEVELOPING DEVICE, PROCESS CART...
- Publication number 20090232563
- Publication date Sep 17, 2009
- Takashi Innami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
MAGNETIC FIELD GENERATING MEMBER AND MANUFACTURING METHOD THEREOF,...
- Publication number 20090175666
- Publication date Jul 9, 2009
- Yoshiyuki TAKANO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOP UNIT, PROCESS CARTRIDGE, AND IMAGE FORMATION APPARATUS
- Publication number 20090154961
- Publication date Jun 18, 2009
- Noriyuki KAMIYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Magnetic roller and manufacturing method thereof, developer carrier...
- Publication number 20080298849
- Publication date Dec 4, 2008
- Tsuyoshi Imamura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
MAGNET ROLLER, DEVELOPING AGENT CARRIER, DEVELOPING UNIT, PROCESS C...
- Publication number 20080232865
- Publication date Sep 25, 2008
- Mieko TERASHIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMATION APPARATUS
- Publication number 20080226355
- Publication date Sep 18, 2008
- Kyohta KOETSUKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
MAGNET ROLLER AND METHOD FOR THE SAME, MAGNETIC PARTICLE-SUPPORT ME...
- Publication number 20080213007
- Publication date Sep 4, 2008
- Yoshiyuki TAKANO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
MAGNETIC PARTICLE CARRYING DEVICE, AND DEVELOPING UNIT, PROCESS CAR...
- Publication number 20080170891
- Publication date Jul 17, 2008
- Hiroya ABE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER HOLDING MEMBER, DEVELOPMENT DEVICE, PROCESS CARTRIDGE, IM...
- Publication number 20080008503
- Publication date Jan 10, 2008
- Tsuyoshi Imamura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20070189810
- Publication date Aug 16, 2007
- Masayuki OHSAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20070127952
- Publication date Jun 7, 2007
- Mieko Terashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Masayuki OHSAWA

Person

Patents Grantslast 30 patents

Magnet roller, developer bearer, development device, process cartri...

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

Develop roller, develop unit, process cartridge, and image forming...

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

Magnet roller, developer holder element, develop unit, process cart...

Development roller, development device, process cartridge and image...

Magnetic particle carrying device, and developing unit, process car...

Magnetic roller and manufacturing method thereof, developer carrier...

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

Development roller, development device, process cartridge and image...

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

Magnet roller and method for the same, magnetic particle-support me...

Magnetic field generating member and manufacturing method thereof,...

Developer carrier, development device, process cartridge, and image...

Magnetic particle carrying device, and developing unit, process car...

Method of manufacturing a hollow body used in an image forming appa...

Magnetic roller, developer carrier, developing device, process cart...

Developer holding member, development device, process cartridge, im...

Developing device, process cartridge and image forming apparatus

Patents Applicationslast 30 patents

MAGNET ROLLER, DEVELOPER BEARER, DEVELOPMENT DEVICE, PROCESS CARTRI...

DEVELOPMENT ROLLER, DEVELOPMENT DEVICE, PROCESS CARTRIDGE AND IMAGE...

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

DEVELOP ROLLER, DEVELOP UNIT, PROCESS CARTRIDGE, AND IMAGE FORMING...

MAGNET ROLLER, DEVELOPER HOLDER ELEMENT, DEVELOP UNIT, PROCESS CART...

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

MAGNETIC PARTICLE CARRYING DEVICE, AND DEVELOPING UNIT, PROCESS CAR...

DEVELOPMENT ROLLER, DEVELOPMENT DEVICE, PROCESSING CARTRIDGE AND IM...

METHOD OF MANUFACTURING A HOLLOW BODY USED IN AN IMAGE FORMING APPA...

DEVELOPER CARRIER, DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE...

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

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

MAGNETIC ROLLER, DEVELOPER CARRIER, DEVELOPING DEVICE, PROCESS CART...

MAGNETIC FIELD GENERATING MEMBER AND MANUFACTURING METHOD THEREOF,...

DEVELOP UNIT, PROCESS CARTRIDGE, AND IMAGE FORMATION APPARATUS

Magnetic roller and manufacturing method thereof, developer carrier...

MAGNET ROLLER, DEVELOPING AGENT CARRIER, DEVELOPING UNIT, PROCESS C...

DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMATION APPARATUS

MAGNET ROLLER AND METHOD FOR THE SAME, MAGNETIC PARTICLE-SUPPORT ME...

MAGNETIC PARTICLE CARRYING DEVICE, AND DEVELOPING UNIT, PROCESS CAR...

DEVELOPER HOLDING MEMBER, DEVELOPMENT DEVICE, PROCESS CARTRIDGE, IM...

DEVELOPING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

DEVELOPMENT DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS