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Kamaukura-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Image forming apparatus
Patent number
8,948,638
Issue date
Feb 3, 2015
Ricoh Company, Ltd.
Yuji Ishikura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic image forming method and apparatus with a cover...
Patent number
8,483,598
Issue date
Jul 9, 2013
Ricoh Company, Limited
Shigekazu Enoki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming device and image forming apparatus
Patent number
8,376,494
Issue date
Feb 19, 2013
Ricoh Company, Limited
Tetsuro Hirota
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus with developer passage amount control elect...
Patent number
8,259,142
Issue date
Sep 4, 2012
Ricoh Company, Limited
Tetsuro Hirota
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Transfer-fixing devices with heating and temperature equalizing cap...
Patent number
8,200,135
Issue date
Jun 12, 2012
Ricoh Company, Ltd.
Takashi Fujita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
8,167,410
Issue date
May 1, 2012
Ricoh Company, Ltd.
Masanori Horike
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Transfer fixing member, transfer fixing device and image forming ap...
Patent number
7,970,325
Issue date
Jun 28, 2011
Ricoh Company, Ltd.
Kazumi Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Transfer-fixing device, image forming apparatus including the trans...
Patent number
7,912,412
Issue date
Mar 22, 2011
Ricoh Company, Ltd.
Takashi Fujita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Transfer-fixing device, image forming apparatus, and transfer-fixin...
Patent number
7,907,881
Issue date
Mar 15, 2011
Ricoh Company Limited
Shin Kayahara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device, fixing device, and image forming apparatus
Patent number
7,869,752
Issue date
Jan 11, 2011
Ricoh Company Limited
Shin Kayahara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image transfer fixation apparatus and image formation apparatus
Patent number
7,856,201
Issue date
Dec 21, 2010
Ricoh Company, Ltd.
Hiromitsu Takagaki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
7,821,527
Issue date
Oct 26, 2010
Ricoh Company, Ltd.
Masanori Horike
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Direct image-recording device and image forming apparatus equipped...
Patent number
7,817,174
Issue date
Oct 19, 2010
Ricoh Company, Ltd.
Masanori Saitoh
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process, toner, process cartridge and apparatus for developing a to...
Patent number
7,790,343
Issue date
Sep 7, 2010
Ricoh Company, Ltd.
Kazumi Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
7,711,300
Issue date
May 4, 2010
Ricoh Company Ltd.
Atsushi Nakafuji
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image transfer device for image forming apparatus
Patent number
7,711,301
Issue date
May 4, 2010
Ricoh Company, Ltd.
Takeshi Takemoto
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
Transfer-fixing unit and image forming apparatus for enhanced image...
Patent number
7,643,767
Issue date
Jan 5, 2010
Ricoh Co., Ltd.
Takashi Seto
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
Apparatus for detecting amount of toner deposit and controlling den...
Patent number
7,610,004
Issue date
Oct 27, 2009
Ricoh Company, Ltd.
Shinji Kato
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
Image forming apparatus equipping improved transfer fixing apparatus
Patent number
7,551,882
Issue date
Jun 23, 2009
Ricoh Company, Ltd.
Takashi Seto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
7,286,785
Issue date
Oct 23, 2007
Ricoh Company, Ltd.
Shunichi Hashimoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method for evaluating changes in resistance of electric resistance...
Patent number
7,280,792
Issue date
Oct 9, 2007
Ricoh Company, Ltd.
Yuuji Sawai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Apparatus for detecting amount of toner deposit and controlling den...
Patent number
7,203,433
Issue date
Apr 10, 2007
Ricoh Company, Ltd.
Shinji Kato
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method and apparatus for image forming capable of effectively preve...
Patent number
7,162,170
Issue date
Jan 9, 2007
Ricoh Company, Ltd.
Shin Kayahara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Intermediate image transfer device for a color image forming apparatus
Patent number
7,003,238
Issue date
Feb 21, 2006
Ricoh Company, Ltd.
Ken Yoshida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method and apparatus for image forming performing improved cleaning...
Patent number
6,990,309
Issue date
Jan 24, 2006
Ricoh Company, Ltd.
Shin Kayahara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus including an intermediate image transfer be...
Patent number
6,901,234
Issue date
May 31, 2005
Ricoh Company, Ltd.
Hiromi Ogiyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20120057891
Publication date
Mar 8, 2012
Yuji ISHIKURA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
LUBRICANT APPLYING DEVICE, IMAGE FORMING APPARATUS, PROCESS UNIT, A...
Publication number
20110229232
Publication date
Sep 22, 2011
Takeshi Kojima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING DEVICE AND IMAGE FORMING APPARATUS
Publication number
20110043589
Publication date
Feb 24, 2011
Tetsuro HIROTA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC IMAGE FORMING METHOD AND APPARATUS
Publication number
20100278558
Publication date
Nov 4, 2010
Shigekazu ENOKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS WITH DEVELOPER PASSAGE AMOUNT CONTROL ELECT...
Publication number
20100214364
Publication date
Aug 26, 2010
Tetsuro HIROTA
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
DIRECT IMAGE-RECORDING DEVICE AND IMAGE FORMING APPARATUS EQUIPPED...
Publication number
20100104319
Publication date
Apr 29, 2010
Masanori SAITOH
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20100061751
Publication date
Mar 11, 2010
Masanori HORIKE
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image transfer fixation apparatus and image formation apparatus
Publication number
20090116880
Publication date
May 7, 2009
Ricoh Company Ltd.
Hiromitsu Takagaki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20090041492
Publication date
Feb 12, 2009
Masanori Horike
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TRANSFER FIXING MEMBER, TRANSFER FIXING DEVICE AND IMAGE FORMING AP...
Publication number
20090016786
Publication date
Jan 15, 2009
Kazumi Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
Publication number
20090003898
Publication date
Jan 1, 2009
Shin Kayahara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Transfer-fixing device, image forming apparatus including the trans...
Publication number
20080219718
Publication date
Sep 11, 2008
Ricoh Company, Ltd.
Takashi Fujita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TRANSFER-FIXING DEVICE, IMAGE FORMING APPARATUS, AND TRANSFER-FIXIN...
Publication number
20080219717
Publication date
Sep 11, 2008
Shin KAYAHARA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Transfer-fixing device, image forming apparatus, and transfer-fixin...
Publication number
20080199229
Publication date
Aug 21, 2008
Ricoh Company, Ltd.
Takashi Fujita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20080069610
Publication date
Mar 20, 2008
Atsushi NAKAFUJI
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
IMAGE FORMING APPARATUS EQUIPPING IMPROVED TRANSFER FIXING APPARATUS
Publication number
20080008505
Publication date
Jan 10, 2008
Takashi SETO
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
PROCESS, TONER, PROCESS CARTRIDGE AND APPARATUS FOR DEVELOPING A TO...
Publication number
20070218386
Publication date
Sep 20, 2007
Kazumi Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TRANSFER-FIXING UNIT AND IMAGE FORMING APPARATUS FOR ENHANCED IMAGE...
Publication number
20070212126
Publication date
Sep 13, 2007
Takashi Seto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE TRANSFER DEVICE FOR IMAGE FORMING APPARATUS
Publication number
20070212129
Publication date
Sep 13, 2007
Takeshi TAKEMOTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
APPARATUS FOR DETECTING AMOUNT OF TONER DEPOSIT AND CONTROLLING DEN...
Publication number
20070134014
Publication date
Jun 14, 2007
Shinji Kato
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
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
Publication number
20060140665
Publication date
Jun 29, 2006
Shunichi Hashimoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Apparatus for detecting amount of toner deposit and controlling den...
Publication number
20050147424
Publication date
Jul 7, 2005
Shinji Kato
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Method and apparatus for image forming capable of effectively preve...
Publication number
20050105927
Publication date
May 19, 2005
Shin Kayahara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Method for evaluating changes in resistance of electric resistance...
Publication number
20050013636
Publication date
Jan 20, 2005
Yuuji Sawai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Intermediate image transfer type of color image forming apparatus
Publication number
20040136760
Publication date
Jul 15, 2004
Ken Yoshida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus including an intermediate image transfer belt
Publication number
20030219287
Publication date
Nov 27, 2003
Hiromi Ogiyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY