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Atsushi Sampe
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Yokohama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Imaging device and image forming apparatus
Patent number
8,428,479
Issue date
Apr 23, 2013
Ricoh Company, Limited
Akira Asaoka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process cartridge and image forming apparatus for effectively clean...
Patent number
7,949,281
Issue date
May 24, 2011
Ricoh Company Limited
Takaya Muraishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, image forming device charging device and l...
Patent number
7,894,758
Issue date
Feb 22, 2011
Ricoh Company, Ltd.
Takeshi Shintani
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 of image forming and process cartridge include...
Patent number
7,486,916
Issue date
Feb 3, 2009
Ricoh Company, Ltd.
Kiyonori Tsuda
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
Image forming apparatus and process cartridge with a cleaner for re...
Patent number
7,400,844
Issue date
Jul 15, 2008
Ricoh Company Limited
Eisaku Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Imaging apparatus, and toner and process cartridge used in the imag...
Patent number
7,386,257
Issue date
Jun 10, 2008
Ricoh Company, Ltd.
Toshio Koike
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
Cleaning unit and image forming apparatus having multiple cleaning...
Patent number
7,272,354
Issue date
Sep 18, 2007
Ricoh Company, Ltd.
Eisaku Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Charging device, and process cartridge and image forming apparatus...
Patent number
7,266,324
Issue date
Sep 4, 2007
Ricoh Company Limited
Masato Yanagida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Charging device, and process cartridge and image forming apparatus...
Patent number
7,218,877
Issue date
May 15, 2007
Ricoh Company Limited
Masato Yanagida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method and apparatus of image forming and process cartridge include...
Patent number
7,162,189
Issue date
Jan 9, 2007
Ricoh Company, Ltd.
Kiyonori Tsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and image forming unit
Patent number
7,146,122
Issue date
Dec 5, 2006
Ricoh Company Limited
Satoshi Hatori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Charging device, and process cartridge and image forming apparatus...
Patent number
7,139,504
Issue date
Nov 21, 2006
Ricoh Company Limited
Masato Yanagida
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
Method and apparatus for image forming capable of removing residual...
Patent number
7,130,564
Issue date
Oct 31, 2006
Ricoh Company, Ltd.
Eisaku Murakami
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
Cleaning unit, process cartridge, and image forming apparatus
Patent number
7,110,696
Issue date
Sep 19, 2006
Ricoh Company, Ltd.
Eisaku Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning unit, process cartridge, and image forming apparatus
Patent number
7,085,528
Issue date
Aug 1, 2006
Ricoh Company, Ltd.
Takeshi Shintani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and image forming unit
Patent number
7,072,602
Issue date
Jul 4, 2006
Ricoh Company Limited
Satoshi Hatori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning unit, process cartridge, image forming apparatus, and toner
Patent number
7,065,316
Issue date
Jun 20, 2006
Ricoh Company, Limited
Masato Yanagida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Powder transport apparatus and image forming apparatus that can sta...
Patent number
7,062,207
Issue date
Jun 13, 2006
Ricoh Company, Ltd.
Kiyonori Tsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Charging device, and process cartridge and image forming apparatus...
Patent number
7,062,194
Issue date
Jun 13, 2006
Ricoh Company Limited
Masato Yanagida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Imaging device and image forming apparatus
Publication number
20110064433
Publication date
Mar 17, 2011
Ricoh Company, Limited
Akira Asaoka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS FOR EFFECTIVELY CLEAN...
Publication number
20080124117
Publication date
May 29, 2008
Takaya MURAISHI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20080069615
Publication date
Mar 20, 2008
Takeshi SHINTANI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING DEVICE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS AND TONER
Publication number
20070154246
Publication date
Jul 5, 2007
Takeshi Shintani
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
METHOD AND APPARATUS OF IMAGE FORMING AND PROCESS CARTRIDGE INCLUDE...
Publication number
20070081835
Publication date
Apr 12, 2007
Kiyonori Tsuda
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
Charging device, and process cartridge and image forming apparatus...
Publication number
20070014588
Publication date
Jan 18, 2007
Masato Yanagida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaning unit, process cartridge, image forming apparatus, and toner
Publication number
20060216085
Publication date
Sep 28, 2006
Eisaku Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus and image forming unit
Publication number
20060193655
Publication date
Aug 31, 2006
Satoshi Hatori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Imaging apparatus, and toner and process cartridge used in the imag...
Publication number
20060177239
Publication date
Aug 10, 2006
Toshio Koike
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Charging device, and process cartridge and image forming apparatus...
Publication number
20060165431
Publication date
Jul 27, 2006
Masato Yanagida
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
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
Method and apparatus of image forming and process cartridge include...
Publication number
20050281590
Publication date
Dec 22, 2005
Kiyonori Tsuda
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
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
Method and apparatus for image forming capable of removing residual...
Publication number
20050036805
Publication date
Feb 17, 2005
Eisaku Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus and process cartridge
Publication number
20050025520
Publication date
Feb 3, 2005
Eisaku Murakami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Cleaning device, process cartridge, image forming apparatus and toner
Publication number
20050002705
Publication date
Jan 6, 2005
Takeshi Shintani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Powder transport apparatus and image forming apparatus that can sta...
Publication number
20040265011
Publication date
Dec 30, 2004
Kiyonori Tsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus and image forming unit
Publication number
20040258432
Publication date
Dec 23, 2004
Satoshi Hatori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY