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Patents Grants
last 30 patents
Information
Patent Grant
Permanent magnet motor, position estimating device, and motor drivi...
Patent number
10,135,374
Issue date
Nov 20, 2018
Ricoh Company, Ltd.
Fumihiro Shimizu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Collimator apparatus, radiation system, and method for controlling...
Patent number
10,026,516
Issue date
Jul 17, 2018
Accuthera Inc.
Eiki Yoshimizu
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information
Patent Grant
Belt driving device, driving device, method, image forming apparatus
Patent number
8,226,510
Issue date
Jul 24, 2012
Ricoh Company, Ltd.
Kamiya Takuroh
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Belt drive controller and image forming apparatus provided with same
Patent number
8,033,546
Issue date
Oct 11, 2011
Ricoh Company, Ltd.
Minoru Takahashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Rotor driving control device and image forming apparatus
Patent number
7,923,959
Issue date
Apr 12, 2011
Ricoh Company, Ltd.
Satoshi Imai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Imprinting apparatus and an image formation apparatus
Patent number
7,907,872
Issue date
Mar 15, 2011
Ricoh Company, Ltd.
Makoto Komatsu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Belt drive controlling device, belt device using the belt drive con...
Patent number
7,848,689
Issue date
Dec 7, 2010
Ricoh Company Limited
Hiromichi Matsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image fixing apparatus and image forming apparatus capable of effec...
Patent number
7,734,208
Issue date
Jun 8, 2010
Ricoh Company, Ltd.
Hiroshi Seo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Fixing device, and method and device for heating control used in th...
Patent number
7,693,439
Issue date
Apr 6, 2010
Ricoh Company, Ltd.
Hiroshi Seo
G05 - CONTROLLING REGULATING
Information
Patent Grant
Belt driving controller, belt rotating device, and image forming ap...
Patent number
7,684,740
Issue date
Mar 23, 2010
Ricoh Company, Ltd.
Hiromichi Matsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus capable of correcting a rotation speed of a...
Patent number
7,587,157
Issue date
Sep 8, 2009
Ricoh Co., Ltd.
Hiromichi Matsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Brushless-motor driving control device, image reading apparatus, an...
Patent number
7,579,795
Issue date
Aug 25, 2009
Ricoh Company Limited
Makoto Komatsu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Belt driving device, driving device, method, image forming apparatus
Patent number
7,491,142
Issue date
Feb 17, 2009
Ricoh Company, Ltd.
Kamiya Takuroh
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Fixing apparatus and an image formation apparatus
Patent number
7,427,727
Issue date
Sep 23, 2008
Ricoh Company, Ltd.
Hiroshi Koide
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Belt drive control method, belt-drive control device, and image for...
Patent number
7,343,119
Issue date
Mar 11, 2008
Ricoh Company, Ltd.
Hiromichi Matsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Belt driving control apparatus, belt apparatus and image forming ap...
Patent number
7,327,972
Issue date
Feb 5, 2008
Ricoh Company, Ltd.
Hiromichi Matsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Optical disk
Patent number
7,068,586
Issue date
Jun 27, 2006
Ricoh Company, Ltd.
Hiroshi Koide
G11 - INFORMATION STORAGE
Information
Patent Grant
Image-formation apparatus, controlling method thereof and image-for...
Patent number
7,016,635
Issue date
Mar 21, 2006
Ricoh Company, Ltd.
Hiroshi Koide
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Belt drive control device and image forming apparatus including the...
Patent number
6,996,357
Issue date
Feb 7, 2006
Ricoh Company, Ltd.
Hiromichi Matsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Belt drive control device and image forming apparatus including the...
Patent number
6,941,096
Issue date
Sep 6, 2005
Ricoh Company, Ltd.
Hiromichi Matsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image-formation apparatus, controlling method thereof and image-for...
Patent number
6,931,227
Issue date
Aug 16, 2005
Ricoh Company, Ltd.
Hiroshi Koide
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Device for driving an endless belt and image forming apparatus usin...
Patent number
6,914,619
Issue date
Jul 5, 2005
Ricoh Company, Ltd.
Hiroshi Koide
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Image forming apparatus with an intermediate image transfer body an...
Patent number
6,889,030
Issue date
May 3, 2005
Ricoh Company, Ltd.
Hiroshi Koide
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus with reduced variation of rotation speed of...
Patent number
6,868,244
Issue date
Mar 15, 2005
Ricoh Company, Ltd.
Hiroshi Koide
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus with reduced variation of rotation speed of...
Patent number
6,771,919
Issue date
Aug 3, 2004
Ricoh Company, Ltd.
Hiroshi Koide
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image-formation apparatus, controlling method thereof and image-for...
Patent number
6,760,559
Issue date
Jul 6, 2004
Ricoh Company, Ltd.
Hiroshi Koide
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical pickup method, optical pickup device, and optical informati...
Patent number
6,754,162
Issue date
Jun 22, 2004
Ricoh Company, Ltd.
Kazuhiro Fujita
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording/reproducing method and apparatus for optical stor...
Patent number
6,738,328
Issue date
May 18, 2004
Ricoh Company, Ltd.
Hiroshi Koide
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical-pickup device and tilt-detecting method thereof
Patent number
6,735,157
Issue date
May 11, 2004
Ricoh Company, Ltd.
Hideaki Hirai
G11 - INFORMATION STORAGE
Information
Patent Grant
Data-writable optical disk
Patent number
6,704,273
Issue date
Mar 9, 2004
Ricoh Company, Ltd.
Hiroshi Koide
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
PERMANENT MAGNET MOTOR, POSITION ESTIMATING DEVICE, AND MOTOR DRIVI...
Publication number
20170040918
Publication date
Feb 9, 2017
RICOH COMPANY, LTD.
Fumihiro SHIMIZU
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
COLLIMATOR APPARATUS, RADIATION SYSTEM, AND METHOD FOR CONTROLLING...
Publication number
20170032864
Publication date
Feb 2, 2017
RICOH COMPANY, LTD.
Eiki YOSHIMIZU
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information
Patent Application
IMPULSE RESPONSE MEASURING METHOD AND IMPULSE RESPONSE MEASURING DE...
Publication number
20120166123
Publication date
Jun 28, 2012
Shokichiro Hino
G01 - MEASURING TESTING
Information
Patent Application
BELT DRIVING DEVICE, DRIVING DEVICE, METHOD, IMAGE FORMING APPARATUS
Publication number
20090120763
Publication date
May 14, 2009
Kamiya TAKUROH
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
FIXING APPARATUS AND AN IMAGE FORMATION APPARATUS
Publication number
20080292347
Publication date
Nov 27, 2008
Hiroshi KOIDE
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
BELT DRIVE CONTROLLING DEVICE, BELT DEVICE USING THE BELT DRIVE CON...
Publication number
20080247781
Publication date
Oct 9, 2008
Hiromichi MATSUDA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Rotor Driving Control Device and Image Forming Apparatus
Publication number
20080231223
Publication date
Sep 25, 2008
RICOH COMPANY, LTD.
Satoshi Imai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Fixing device, and method and device for heating control used in th...
Publication number
20080044196
Publication date
Feb 21, 2008
Hiroshi Seo
G05 - CONTROLLING REGULATING
Information
Patent Application
Brushless-motor driving control device, image reading apparatus, an...
Publication number
20070247092
Publication date
Oct 25, 2007
Makoto Komatsu
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
IMAGE FORMING APPARATUS CAPABLE OF EFFECTIVELY FORMING A QUALITY CO...
Publication number
20070172257
Publication date
Jul 26, 2007
Hiromichi Matsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
BELT DRIVE CONTROLLER AND IMAGE FORMING APPARATUS PROVIDED WITH SAME
Publication number
20070126837
Publication date
Jun 7, 2007
Minoru Takahashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Image fixing apparatus and image forming apparatus capable of effec...
Publication number
20070059011
Publication date
Mar 15, 2007
Hiroshi Seo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Imprinting apparatus and an image formation apparatus
Publication number
20070025768
Publication date
Feb 1, 2007
Makoto Komatsu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
FIXING APPARATUS AND AN IMAGE FORMATION APPARATUS
Publication number
20070012676
Publication date
Jan 18, 2007
Hiroshi KOIDE
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Belt driving controller, belt rotating device, and image forming ap...
Publication number
20060275056
Publication date
Dec 7, 2006
Hiromichi Matsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Belt driving control apparatus, belt apparatus and image forming ap...
Publication number
20060184258
Publication date
Aug 17, 2006
Hiromichi Matsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Belt drive control method, belt-drive control device, and image for...
Publication number
20060088338
Publication date
Apr 27, 2006
Hiromichi Matsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Multifunction display device
Publication number
20060022910
Publication date
Feb 2, 2006
Takuro Sekiya
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Optical disc device
Publication number
20050270928
Publication date
Dec 8, 2005
Hiroki Sugahara
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
BELT DRIVE CONTROL DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE...
Publication number
20050249524
Publication date
Nov 10, 2005
Hiromichi Matsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Device for driving an endless belt and image forming apparatus usin...
Publication number
20050220491
Publication date
Oct 6, 2005
Hiroshi Koide
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical disk
Publication number
20040136283
Publication date
Jul 15, 2004
Hiroshi Koide
G11 - INFORMATION STORAGE
Information
Patent Application
Image forming apparatus with reduced variation of rotation speed of...
Publication number
20040131386
Publication date
Jul 8, 2004
Hiroshi Koide
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Belt driving device, driving device, method, image forming apparatus
Publication number
20040127317
Publication date
Jul 1, 2004
Kamiya Takuroh
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Belt drive control device and image forming apparatus including the...
Publication number
20040086299
Publication date
May 6, 2004
Hiromichi Matsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20030210932
Publication date
Nov 13, 2003
Hiroshi Koide
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Optical-pickup device and tilt-detecting method thereof
Publication number
20030151999
Publication date
Aug 14, 2003
Hideaki Hirai
G11 - INFORMATION STORAGE
Information
Patent Application
Image forming apparatus
Publication number
20030021613
Publication date
Jan 30, 2003
Hiroshi Koide
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Optical recording/reproducing method and apparatus for optical stor...
Publication number
20020181362
Publication date
Dec 5, 2002
Hiroshi Koide
G11 - INFORMATION STORAGE
Information
Patent Application
Device for driving an endless belt and image forming apparatus usin...
Publication number
20020085086
Publication date
Jul 4, 2002
Hiroshi Koide
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS