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Ota-Ku, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Cleaning apparatus for removing toner adhered onto endless belt
Patent number
8,306,469
Issue date
Nov 6, 2012
Ricoh Company, Ltd.
Yoshiyuki Kimura
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
Transfer device and image forming apparatus
Patent number
7,672,605
Issue date
Mar 2, 2010
Ricoh Company, Limited
Shin Kayahara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method and apparatus for image forming capable of effectively perfo...
Patent number
7,630,659
Issue date
Dec 8, 2009
Ricoh Co., Ltd.
Takeshi Uchitani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Conductive member, and charging roller, process cartridge and image...
Patent number
7,603,062
Issue date
Oct 13, 2009
Ricoh Company, Ltd.
Eiji Shimojo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Charging member, process cartridge including the same, and image fo...
Patent number
7,555,243
Issue date
Jun 30, 2009
Ricoh Company, Ltd.
Masahiko Satoh
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
Process cartridge and image forming apparatus using the same
Patent number
7,483,648
Issue date
Jan 27, 2009
Ricoh Company, Ltd.
Hiroshi Hosokawa
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
Image forming apparatus having a cleaning roller for a charging rol...
Patent number
7,460,810
Issue date
Dec 2, 2008
Ricoh Co., Ltd.
Atsushi Sampe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method of and image forming apparatus for controlling a light expos...
Patent number
7,433,615
Issue date
Oct 7, 2008
Ricoh Company, Ltd.
Wakako Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing device, process cartridge, device unit, and image formin...
Patent number
7,428,393
Issue date
Sep 23, 2008
Ricoh Company, Ltd.
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning apparatus for removing toner adhered onto endless belt
Patent number
7,421,239
Issue date
Sep 2, 2008
Ricoh Company, Ltd.
Yoshiyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and process cartridge including sealable lu...
Patent number
7,343,132
Issue date
Mar 11, 2008
Ricoh Company, Ltd.
Yoshiyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus including a process cartridge formed with a...
Patent number
7,305,203
Issue date
Dec 4, 2007
Ricoh Company, Ltd.
Atsushi Sampe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and image transferring unit for use in the...
Patent number
7,298,991
Issue date
Nov 20, 2007
Ricoh Company, Ltd.
Yoshiyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus having a temporary toner holding device and...
Patent number
7,295,796
Issue date
Nov 13, 2007
Ricoh Company, Ltd.
Eisaku Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, process cartridge, and waste toner recover...
Patent number
7,292,817
Issue date
Nov 6, 2007
Ricoh Company, Limited
Eisaku Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus that recovers waste toner inside thereof
Patent number
7,221,887
Issue date
May 22, 2007
Ricoh Company, Ltd.
Yoshiyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
7,190,918
Issue date
Mar 13, 2007
Ricoh Company, Ltd.
Yoshiyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, process cartridge, and waste toner recover...
Patent number
7,184,684
Issue date
Feb 27, 2007
Ricoh Company, Limited
Eisaku Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus using installable process cartridge, method...
Patent number
7,136,610
Issue date
Nov 14, 2006
Ricoh Company, Ltd.
Yuji Arai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and image transferring unit for use in the...
Patent number
7,127,195
Issue date
Oct 24, 2006
Ricoh Company, Ltd.
Yoshiyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and process cartridge for use in the same
Patent number
7,110,699
Issue date
Sep 19, 2006
Ricoh Company, Ltd.
Hideo Yoshizawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process cartridge smoothly and stably attached to and detached from...
Patent number
7,106,991
Issue date
Sep 12, 2006
Ricoh Company, Ltd.
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus using a user installable process cartridge,...
Patent number
7,024,133
Issue date
Apr 4, 2006
Ricoh Co., Ltd.
Hiroyuki Nagashima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and image transferring unit for use in the...
Patent number
6,996,354
Issue date
Feb 7, 2006
Ricoh Company, Ltd.
Yoshiyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image carrier unit and image forming apparatus
Patent number
6,993,267
Issue date
Jan 31, 2006
Ricoh Company, Limited
Kimura Yoshiyuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and process cartridge including flexible me...
Patent number
6,993,281
Issue date
Jan 31, 2006
Ricoh Company, Ltd.
Hideo Yoshizawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, process cartridge, and waste toner recover...
Patent number
6,975,830
Issue date
Dec 13, 2005
Ricoh Company, Limited
Eisaku Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20100215397
Publication date
Aug 26, 2010
Atsushi Sampe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20100129113
Publication date
May 27, 2010
Atsushi Sampe
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
CLEANING APPARATUS FOR REMOVING TONER ADHERED ONTO ENDLESS BELT
Publication number
20080298833
Publication date
Dec 4, 2008
Yoshiyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CHARGING MEMBER, PROCESS CARTRIDGE INCLUDING THE SAME, AND IMAGE FO...
Publication number
20080008499
Publication date
Jan 10, 2008
Masahiko Satoh
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TRANSFER DEVICE AND IMAGE FORMING APPARATUS
Publication number
20070286628
Publication date
Dec 13, 2007
Shin KAYAHARA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS & ASSOCIATED METHOD OF APPLYING A LUBRICANT
Publication number
20070122217
Publication date
May 31, 2007
Hiroyuki Nagashima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND WASTE TONER RECOVER...
Publication number
20070092290
Publication date
Apr 26, 2007
Eisaka Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Conductive member, and charging roller, process cartridge and image...
Publication number
20070065178
Publication date
Mar 22, 2007
Eiji Shimojo
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
Image forming apparatus and image transferring unit for use in the...
Publication number
20070036584
Publication date
Feb 15, 2007
Yoshiyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Method and apparatus for image forming capable of effectively perfo...
Publication number
20060251438
Publication date
Nov 9, 2006
Takeshi Uchitani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus and process cartridge
Publication number
20060120741
Publication date
Jun 8, 2006
Wakako Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus and process cartridge capable of performing...
Publication number
20060115292
Publication date
Jun 1, 2006
Atsushi Sampe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus, process cartridge, and toner
Publication number
20060062612
Publication date
Mar 23, 2006
Yoshiyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus and process cartridge for use in the same
Publication number
20060029427
Publication date
Feb 9, 2006
Hideo Yoshizawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus, process cartridge, and waste toner recover...
Publication number
20060024103
Publication date
Feb 2, 2006
Eisaku Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Process cartridge and image forming apparatus using the same
Publication number
20060018680
Publication date
Jan 26, 2006
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20060008296
Publication date
Jan 12, 2006
Atsushi Sampe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus and image transferring unit for use in the...
Publication number
20050281584
Publication date
Dec 22, 2005
Yoshiyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20050244189
Publication date
Nov 3, 2005
Yoshiyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20050238384
Publication date
Oct 27, 2005
Atsushi Sampe
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
Developing device, process cartridge, device unit, and image formin...
Publication number
20050158071
Publication date
Jul 21, 2005
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20050129425
Publication date
Jun 16, 2005
Yoshiyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaning apparatus for removing toner adhered onto endless belt
Publication number
20050078991
Publication date
Apr 14, 2005
Yoshiyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus, process cartridge, and waste toner recover...
Publication number
20050036810
Publication date
Feb 17, 2005
Eisaku Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Process cartridge smoothly and stably attached to and detached from...
Publication number
20040223782
Publication date
Nov 11, 2004
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image carrier unit and image forming apparatus
Publication number
20040190936
Publication date
Sep 30, 2004
Kimura Yoshiyuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus using installable process cartridge, method...
Publication number
20040170447
Publication date
Sep 2, 2004
Yuji Arai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY