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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Image forming apparatus for fixing a not-yet-fixed image
Patent number
8,655,214
Issue date
Feb 18, 2014
Ricoh Company, Ltd.
Hiroyuki Sugiyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Charging device, process cartridge, image forming apparatus, and toner
Patent number
8,428,488
Issue date
Apr 23, 2013
Ricoh Company, Ltd.
Haruji Mizuishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Used toner collection device and image forming apparatus
Patent number
8,185,032
Issue date
May 22, 2012
Ricoh Company, Limited
Hiroshi Ono
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
8,180,246
Issue date
May 15, 2012
Ricoh Company, Ltd.
Shinichi Kawahara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Lubricant application apparatus, process cartridge, and image formi...
Patent number
8,103,207
Issue date
Jan 24, 2012
Ricoh Company, Ltd.
Shinya Karasawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Charging device, process cartridge, image forming apparatus, and toner
Patent number
8,000,627
Issue date
Aug 16, 2011
Ricoh Company, Ltd.
Haruji Mizuishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, lubricant applying device, transfer device...
Patent number
7,826,786
Issue date
Nov 2, 2010
Ricoh Company, Limited
Takeo Suda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Charging device including charging roller and cleaning roller
Patent number
7,680,429
Issue date
Mar 16, 2010
Ricoh Company, Ltd.
Muraishi Takaya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method and apparatus for image forming and effectively applying lub...
Patent number
7,672,635
Issue date
Mar 2, 2010
Ricoh Co., Ltd.
Yoshiki Hozumi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Lubricant applicator, and image forming apparatus and process cartr...
Patent number
7,542,712
Issue date
Jun 2, 2009
Ricoh Company Limited
Shuji Tanaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and toner
Patent number
7,539,451
Issue date
May 26, 2009
Ricoh Company Ltd.
Masanori Kawasumi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Charged device, cleaning device, process cartridge, toner, and imag...
Patent number
7,477,862
Issue date
Jan 13, 2009
Ricoh Company, Ltd.
Muraishi Takaya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method and apparatus for image forming and effectively applying lub...
Patent number
7,373,101
Issue date
May 13, 2008
Ricoh Co., Ltd.
Yoshiki Hozumi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus that charges a photosensitive member by sup...
Patent number
7,333,744
Issue date
Feb 19, 2008
Ricoh Company, Ltd.
Eiji Shimojo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device, process cartridge, image forming apparatus and toner
Patent number
7,313,347
Issue date
Dec 25, 2007
Ricoh Company Ltd.
Takeshi Shintani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method and apparatus for electrophotographic image forming capable...
Patent number
7,292,816
Issue date
Nov 6, 2007
Ricoh Co., Ltd.
Tokuya Ojimi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20120114358
Publication date
May 10, 2012
Hiroyuki SUGIYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CHARGING DEVICE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND TONER
Publication number
20110262179
Publication date
Oct 27, 2011
Haruji Mizuishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20100040393
Publication date
Feb 18, 2010
Shinichi Kawahara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
LUBRICANT APPLICATION APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMI...
Publication number
20090120356
Publication date
May 14, 2009
Shinya KARASAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CHARGING DEVICE INCLUDING CHARGING ROLLER AND CLEANING ROLLER
Publication number
20090087213
Publication date
Apr 2, 2009
Muraishi Takaya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
USED TONER COLLECTION DEVICE AND IMAGE FORMING APPARATUS
Publication number
20080226333
Publication date
Sep 18, 2008
Hiroshi ONO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
METHOD AND APPARATUS FOR IMAGE FORMING AND EFFECTIVELY APPLYING LUB...
Publication number
20080175635
Publication date
Jul 24, 2008
Yoshiki Hozumi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Powder transport unit having enhanced transportability and operabil...
Publication number
20080013998
Publication date
Jan 17, 2008
Naohiro Kumagai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Charging Device, Process Cartridge, Image Forming Apparatus, And Toner
Publication number
20070196123
Publication date
Aug 23, 2007
Haruji Mizuishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus, lubricant applying device, transfer device...
Publication number
20070183824
Publication date
Aug 9, 2007
Takeo Suda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Lubricant applicator, and image forming apparatus and process cartr...
Publication number
20070059067
Publication date
Mar 15, 2007
Shuji Tanaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Method and apparatus for image forming and effectively applying lub...
Publication number
20060194662
Publication date
Aug 31, 2006
Yoshiki Hozumi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20060133837
Publication date
Jun 22, 2006
Eiji Shimojo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Method and apparatus for image forming capable of effectively preve...
Publication number
20060133834
Publication date
Jun 22, 2006
Takuzi Yoneda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Electrophotographic image forming apparatus, and toner, process car...
Publication number
20060115286
Publication date
Jun 1, 2006
Takeshi Uchitani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus and toner
Publication number
20060062594
Publication date
Mar 23, 2006
Masanori Kawasumi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaning device, process cartridge, image forming apparatus and toner
Publication number
20060039726
Publication date
Feb 23, 2006
Takeshi Shintani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Charging apparatus, and image forming apparatus equipped with same
Publication number
20050271420
Publication date
Dec 8, 2005
Yuji Arai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus, process cartridge, lubrication method, and...
Publication number
20050232665
Publication date
Oct 20, 2005
Koike Toshio
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Method and apparatus for electrophotographic image forming capable...
Publication number
20050232666
Publication date
Oct 20, 2005
Tokuya Ojimi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Charged device, cleaning device, process cartridge, toner, and imag...
Publication number
20050191081
Publication date
Sep 1, 2005
Takaya Muraishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Method and apparatus for electrophotographic image forming capable...
Publication number
20050191574
Publication date
Sep 1, 2005
Toshio Koike
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY