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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Belt device and image forming apparatus incorporating same having a...
Patent number
8,948,647
Issue date
Feb 3, 2015
Ricoh Company, Ltd.
Kenji Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Belt device and image forming apparatus incorporating same having a...
Patent number
8,731,431
Issue date
May 20, 2014
Ricoh Company, Ltd.
Kenji Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device and image forming apparatus including same
Patent number
8,600,256
Issue date
Dec 3, 2013
Ricoh Company, Ltd.
Yuu Sakakibara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device and image forming apparatus
Patent number
8,548,350
Issue date
Oct 1, 2013
Ricoh Company, Limited
Yoshiki Hozumi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning apparatus and image forming apparatus
Patent number
8,437,657
Issue date
May 7, 2013
Ricoh Company, Limited
Hisashi Kikuchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device and image forming apparatus
Patent number
8,433,213
Issue date
Apr 30, 2013
Ricoh Company, Limited
Yoshiki Hozumi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning unit for an electrophotographic image forming apparatus ha...
Patent number
8,326,174
Issue date
Dec 4, 2012
Ricoh Company, Limited
Osamu Naruse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device, image forming apparatus including the device, and...
Patent number
8,280,295
Issue date
Oct 2, 2012
Ricoh Company, Limited
Osamu Naruse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device and image forming apparatus
Patent number
8,190,077
Issue date
May 29, 2012
Ricoh Company, Ltd.
Osamu Naruse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device, image forming apparatus, and process cartridge
Patent number
8,041,281
Issue date
Oct 18, 2011
Ricoh Company Limited
Naomi Sugimoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device, process cartridge, and image forming apparatus
Patent number
8,027,628
Issue date
Sep 27, 2011
Ricoh Company, Ltd.
Kazuhiko Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Polarity controlling device, and cleaner and image forming apparatu...
Patent number
8,019,268
Issue date
Sep 13, 2011
Ricoh Company Limited
Hiroki Nakamatsu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning unit, process cartridge, and image forming apparatus using...
Patent number
7,929,897
Issue date
Apr 19, 2011
Ricoh Company, Ltd.
Naomi Sugimoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device, image forming apparatus, and process cartridge
Patent number
7,903,995
Issue date
Mar 8, 2011
Ricoh Company, Ltd.
Hiroki Nakamatsu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning unit, image carrier unit including same, and image forming...
Patent number
7,817,954
Issue date
Oct 19, 2010
Ricoh Company Limited
Hidetoshi Yano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device, process cartridge and image forming apparatus
Patent number
7,809,321
Issue date
Oct 5, 2010
Ricoh Company, Ltd.
Hidetoshi Yano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus with obtuse-edge cleaning blade
Patent number
7,620,357
Issue date
Nov 17, 2009
Ricoh Company, Ltd.
Masahiko Shakuto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device, and process unit and image forming apparatus inclu...
Patent number
7,610,008
Issue date
Oct 27, 2009
Ricoh Company Limited
Kazuhiko Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning unit, process cartridge, and image-forming apparatus
Patent number
7,415,236
Issue date
Aug 19, 2008
Ricoh Company, Ltd.
Tohru Nakano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device, process cartridge, and image forming apparatus tha...
Patent number
7,415,238
Issue date
Aug 19, 2008
Ricoh Company, Ltd.
Kazuhiko Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaner, and process cartridge and image forming apparatus using th...
Patent number
7,369,807
Issue date
May 6, 2008
Ricoh Company, Limited
Osamu Naruse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning blade for image formation apparatus
Patent number
7,184,699
Issue date
Feb 27, 2007
Ricoh Company, Ltd.
Osamu Naruse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device and method, image forming apparatus, and process ca...
Patent number
7,123,872
Issue date
Oct 17, 2006
Ricoh Company, Ltd.
Masahiko Shakuto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning apparatus, image forming apparatus, and process cartridge
Patent number
7,062,212
Issue date
Jun 13, 2006
Ricoh Company, Ltd.
Osamu Naruse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device and image forming apparatus using the cleaning device
Patent number
6,987,944
Issue date
Jan 17, 2006
Ricoh Company, Ltd.
Masahiko Shakuto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device and image forming apparatus using the same
Patent number
6,799,012
Issue date
Sep 28, 2004
Ricoh Company, Ltd.
Masahiko Shakuto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
BELT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME HAVING A...
Publication number
20140147181
Publication date
May 29, 2014
Kenji SUGIURA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
Publication number
20120008973
Publication date
Jan 12, 2012
Yuu SAKAKIBARA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING DEVICE AND IMAGE FORMING APPARATUS
Publication number
20110229187
Publication date
Sep 22, 2011
Yoshiki Hozumi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING DEVICE AND IMAGE FORMING APPARATUS
Publication number
20110229234
Publication date
Sep 22, 2011
Yoshiki Hozumi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING APPARATUS AND IMAGE FORMING APPARATUS
Publication number
20110158677
Publication date
Jun 30, 2011
Hisashi KIKUCHI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
BELT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
Publication number
20110103822
Publication date
May 5, 2011
Kenji SUGIURA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaning device and image forming apparatus incorporating same
Publication number
20110085834
Publication date
Apr 14, 2011
Osamu Naruse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaning unit, process cartridge, and electrophotographic image for...
Publication number
20100239302
Publication date
Sep 23, 2010
Ricoh Company, Ltd.
Osamu Naruse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
POLARITY CONTROLLING DEVICE, AND CLEANER AND IMAGE FORMING APPARATU...
Publication number
20100034549
Publication date
Feb 11, 2010
Hiroki Nakamatsu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING DEVICE AND IMAGE FORMING APPARATUS
Publication number
20100008706
Publication date
Jan 14, 2010
Kenji Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
Publication number
20100003052
Publication date
Jan 7, 2010
Hiroki Nakamatsu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING DEVICE AND IMAGE FORMING APPARATUS
Publication number
20090311004
Publication date
Dec 17, 2009
Osamu Naruse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING UNIT, IMAGE CARRIER UNIT INCLUDING SAME, AND IMAGE FORMING...
Publication number
20090092428
Publication date
Apr 9, 2009
Hidetoshi YANO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING DEVICE, IMAGE CARRIER UNIT, AND IMAGE FORMING APPARATUS
Publication number
20090035038
Publication date
Feb 5, 2009
Naomi Sugimoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING DEVICE, IMAGE FORMING APPARATUS INCLUDING THE DEVICE, AND...
Publication number
20080310897
Publication date
Dec 18, 2008
Osamu Naruse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
Publication number
20080286020
Publication date
Nov 20, 2008
Kazuhiko Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
Publication number
20080253815
Publication date
Oct 16, 2008
Hidetoshi YANO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING UNIT, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS USING...
Publication number
20080193179
Publication date
Aug 14, 2008
Naomi SUGIMOTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
Publication number
20080193178
Publication date
Aug 14, 2008
Naomi Sugimoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS, PROCESS UNIT, AND CLEANING DEVICE
Publication number
20070212139
Publication date
Sep 13, 2007
Kenji Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20070003337
Publication date
Jan 4, 2007
Masahiko Shakuto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaning device, and process unit and image forming apparatus inclu...
Publication number
20060285898
Publication date
Dec 21, 2006
Kazuhiko Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaning device, process cartridge, and image forming apparatus
Publication number
20060099016
Publication date
May 11, 2006
Kazuhiko Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaner, and process cartridge and image forming apparatus using th...
Publication number
20050254868
Publication date
Nov 17, 2005
Osamu Naruse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaning device for image formation apparatus
Publication number
20050100375
Publication date
May 12, 2005
Osamu Naruse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaning device, process cartridge, and image forming apparatus
Publication number
20050058474
Publication date
Mar 17, 2005
Kazuhiko Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaning apparatus, image forming apparatus, and process cartridge
Publication number
20040265024
Publication date
Dec 30, 2004
Osamu Naruse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaning unit, process cartridge, and image-forming apparatus
Publication number
20040197122
Publication date
Oct 7, 2004
Tohru Nakano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaning device and method, image forming apparatus, and process ca...
Publication number
20040105710
Publication date
Jun 3, 2004
Masahiko Shakuto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaning device and image forming apparatus using the cleaning device
Publication number
20030039494
Publication date
Feb 27, 2003
Masahiko Shakuto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY