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Patents Grants
last 30 patents
Information
Patent Grant
Image forming apparatus including process cartridge and drive unit...
Patent number
8,725,034
Issue date
May 13, 2014
Ricoh Company, Ltd.
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
To-be-transferred object length measurement device and image formin...
Patent number
8,639,174
Issue date
Jan 28, 2014
Ricoh Company, Ltd.
Masahiro Ashikawa
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Belt driving device and image forming apparatus using the same
Patent number
8,406,665
Issue date
Mar 26, 2013
Ricoh Company, Limited
Yuichi Hirose
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Drive transmission mechanism and image forming apparatus including...
Patent number
8,385,777
Issue date
Feb 26, 2013
Ricoh Company, Ltd.
Junya Takigawa
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Belt conveying device and image forming apparatus
Patent number
8,351,830
Issue date
Jan 8, 2013
Ricoh Company, Limited
Koichi Kudo
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Constant velocity joint and image forming apparatus
Patent number
8,311,457
Issue date
Nov 13, 2012
Ricoh Company, Limited
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Coupling device, and image forming apparatus
Patent number
8,229,324
Issue date
Jul 24, 2012
Ricoh Company, Limited
Junya Takigawa
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Constant velocity joint and image forming apparatus
Patent number
8,103,192
Issue date
Jan 24, 2012
Ricoh Company, Ltd.
Junya Takigawa
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Image forming apparatus
Patent number
7,844,202
Issue date
Nov 30, 2010
Ricoh Company, Limited
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
7,822,364
Issue date
Oct 26, 2010
Ricoh Company, Limited
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cleaning device for cleaning a surface of an image forming apparatu...
Patent number
7,616,922
Issue date
Nov 10, 2009
Ricoh Company, Ltd.
Kaoru Yoshino
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method and apparatus for image forming capable of effectively suppo...
Patent number
7,561,826
Issue date
Jul 14, 2009
Ricoh Company, Limited
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Drive transmitting device, and image forming apparatus
Patent number
7,548,713
Issue date
Jun 16, 2009
Ricoh Company, Limited
Junya Takigawa
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Optical encoder, motor driver and image forming apparatus
Patent number
7,532,370
Issue date
May 12, 2009
Ricoh Company, Ltd.
Koichi Kudo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Heat exhaustion apparatus and image forming apparatus using same
Patent number
7,400,842
Issue date
Jul 15, 2008
Ricoh Company, Ltd.
Kenichi Takehara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Apparatus for cooling an electrophotographic image forming apparatus
Patent number
7,356,277
Issue date
Apr 8, 2008
Ricoh Company, Ltd.
Yasuaki Iijima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process cartridge and image forming apparatus for reducing the effe...
Patent number
7,340,198
Issue date
Mar 4, 2008
Ricoh Company, Ltd.
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus capable of effectively removing heated air...
Patent number
7,224,921
Issue date
May 29, 2007
Ricoh Company, Ltd.
Yasuaki Iijima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus including rotary member speed detection mec...
Patent number
6,947,693
Issue date
Sep 20, 2005
Ricoh Company, Ltd.
Takuroh Kamiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Belt apparatus and image forming apparatus
Patent number
6,898,386
Issue date
May 24, 2005
Ricoh Company, Ltd.
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Image Forming Apparatus Including Process Cartridge
Publication number
20120177398
Publication date
Jul 12, 2012
RICOH COMPANY, LTD.
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Belt driving device and image forming apparatus using the same
Publication number
20110110691
Publication date
May 12, 2011
Ricoh Company, Limited
Yuichi Hirose
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Drive transmission mechanism and image forming apparatus including...
Publication number
20110110688
Publication date
May 12, 2011
Ricoh Company, Ltd.
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Constant velocity joint and image forming apparatus
Publication number
20110091244
Publication date
Apr 21, 2011
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
To-be-transferred object length measurement device and image formin...
Publication number
20100239282
Publication date
Sep 23, 2010
Masahiro Ashikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Belt Conveying device and image forming apparatus
Publication number
20100232819
Publication date
Sep 16, 2010
Ricoh Company, Limited
Koichi Kudo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Coupling device, and image forming apparatus
Publication number
20090196655
Publication date
Aug 6, 2009
RICOH COMPANY, LIMITED & NTN CORPORATION
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Constant velocity joint and image forming apparatus
Publication number
20090054164
Publication date
Feb 26, 2009
Ricoh Company, Ltd.
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image Forming apparatus
Publication number
20090042656
Publication date
Feb 12, 2009
Ricoh Company, Limited
Junya Takigawa
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Image forming apparatus
Publication number
20090028597
Publication date
Jan 29, 2009
Ricoh Company, Limited
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DRIVE TRANSMITTING DEVICE, AND IMAGE FORMING APPARATUS
Publication number
20070201901
Publication date
Aug 30, 2007
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20070196129
Publication date
Aug 23, 2007
Ricoh Company, Limited
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Method and apparatus for image forming capable of effectively suppo...
Publication number
20070189805
Publication date
Aug 16, 2007
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CLEANING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
Publication number
20070071525
Publication date
Mar 29, 2007
Kaoru Yoshino
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20060120748
Publication date
Jun 8, 2006
Kenichi Takehara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20060110172
Publication date
May 25, 2006
Yasuaki Iijima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Process cartridge and image forming apparatus
Publication number
20060051131
Publication date
Mar 9, 2006
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus capable of effectively removing heated air...
Publication number
20050238380
Publication date
Oct 27, 2005
Yasuaki Iijima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus including rotary member speed detection mec...
Publication number
20040228663
Publication date
Nov 18, 2004
Takuroh Kamiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Optical encoder, motor driver and image forming apparatus
Publication number
20040160646
Publication date
Aug 19, 2004
Koichi Kudo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Belt apparatus and image forming apparatus
Publication number
20030223768
Publication date
Dec 4, 2003
Junya Takigawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY