Yasuhisa Ehara

Person

Kanagawa-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Printed matter delivery system, image forming apparatus, and printe...
- Patent number 9,772,809
- Issue date Sep 26, 2017
- Ricoh Company, Ltd.
- Kazunori Bannai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Driving device and image forming apparatus including the driving de...
- Patent number 9,121,477
- Issue date Sep 1, 2015
- Ricoh Company, Ltd.
- Yasuhiro Maehata
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Sheet conveyance device and image forming apparatus including same
- Patent number 8,948,679
- Issue date Feb 3, 2015
- Ricoh Company, Ltd.
- Hiroaki Murakami
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Image forming apparatus
- Patent number 8,447,212
- Issue date May 21, 2013
- Ricoh Company, Ltd.
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming device
- Patent number 8,346,111
- Issue date Jan 1, 2013
- Ricoh Company, Ltd.
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,340,552
- Issue date Dec 25, 2012
- Ricoh Company, Limited
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image forming method of effectively det...
- Patent number 8,331,822
- Issue date Dec 11, 2012
- Ricoh Co., Ltd.
- Kazuhiko Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,295,736
- Issue date Oct 23, 2012
- Ricoh Company, Limited
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Multicolor imaging system
- Patent number 8,254,813
- Issue date Aug 28, 2012
- Ricoh Company, Ltd.
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image forming method
- Patent number 8,095,028
- Issue date Jan 10, 2012
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Drive transmission device, and image forming apparatus and process...
- Patent number 8,064,801
- Issue date Nov 22, 2011
- Ricoh Company, Ltd.
- Keisuke Sugiyama
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Image forming system and method of detecting color misregistration
- Patent number 8,010,026
- Issue date Aug 30, 2011
- Ricoh Company Limited
- Kazuhiko Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,010,019
- Issue date Aug 30, 2011
- Ricoh Company Limited
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having enhanced controlling method for redu...
- Patent number 7,991,326
- Issue date Aug 2, 2011
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image forming method of effectively det...
- Patent number 7,937,007
- Issue date May 3, 2011
- Ricoh Co., Ltd.
- Kazuhiko Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with color shift correction suppressing per...
- Patent number 7,885,587
- Issue date Feb 8, 2011
- Ricoh Company, Ltd.
- Hiromichi Matsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Imaging apparatus adjusting a rotational stop phase based on a calc...
- Patent number 7,778,575
- Issue date Aug 17, 2010
- Ricoh Company, Ltd.
- Yuji Matsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color drift error correcting method and image forming apparatus
- Patent number 7,729,024
- Issue date Jun 1, 2010
- Ricoh Company, Ltd.
- Kazuhiko Kobayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image forming apparatus with fluctuation-pattern detection and fine...
- Patent number 7,697,867
- Issue date Apr 13, 2010
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image forming apparatus capable of effectively forming a quality co...
- Patent number 7,693,468
- Issue date Apr 6, 2010
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having enhanced controlling method for redu...
- Patent number 7,653,332
- Issue date Jan 26, 2010
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method, apparatus, and program for image forming capable of effecti...
- Patent number 7,630,657
- Issue date Dec 8, 2009
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming method and apparatus capable of effectively performin...
- Patent number 7,606,505
- Issue date Oct 20, 2009
- Ricoh Company, Ltd.
- Hideo Kikuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 7,603,061
- Issue date Oct 13, 2009
- Ricoh Company Limited
- Joh Ebara
- 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
Color printing apparatus capable of color registration difference c...
- Patent number 7,532,842
- Issue date May 12, 2009
- Ricoh Company, Ltd.
- Seiichi Handa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Printer engine and color image forming device using this printer en...
- Patent number 7,373,097
- Issue date May 13, 2008
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, process cartridge and image forming apparatus
- Patent number 7,366,431
- Issue date Apr 29, 2008
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Transmission for image formation apparatus, method of manufacturing...
- Patent number 7,162,185
- Issue date Jan 9, 2007
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and method for preventing local damage of g...
- Patent number 7,013,102
- Issue date Mar 14, 2006
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
PRINTED MATTER DELIVERY SYSTEM, IMAGE FORMING APPARATUS, AND PRINTE...
- Publication number 20160274840
- Publication date Sep 22, 2016
- RICOH COMPANY, LTD.
- Kazunori BANNAI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DRIVING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE DRIVING DE...
- Publication number 20140073476
- Publication date Mar 13, 2014
- RICOH COMPANY, LTD.
- Yasuhiro MAEHATA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD OF EFFECTIVELY DET...
- Publication number 20110150531
- Publication date Jun 23, 2011
- Kazuhiko Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming device
- Publication number 20110058827
- Publication date Mar 10, 2011
- RICOH COMPANY, LTD.
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Sheet conveyance device and image forming apparatus including same
- Publication number 20110058870
- Publication date Mar 10, 2011
- Ricoh Company, Ltd.
- Hiroaki Murakami
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Image forming apparatus
- Publication number 20110044724
- Publication date Feb 24, 2011
- RICOH COMPANY, LTD.
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Multicolor imaging system
- Publication number 20100303504
- Publication date Dec 2, 2010
- Ricoh Company, Ltd.
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20100239318
- Publication date Sep 23, 2010
- Ricoh Company, Ltd.
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20100226676
- Publication date Sep 9, 2010
- Ricoh Company, Limited
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20100183322
- Publication date Jul 22, 2010
- Ricoh Company, Limited
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus and image forming method
- Publication number 20090317109
- Publication date Dec 24, 2009
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20090238588
- Publication date Sep 24, 2009
- Ricoh Company, Ltd.
- Hiromichi Matsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Drive transmission device, and image forming apparatus and process...
- Publication number 20090074506
- Publication date Mar 19, 2009
- Ricoh Company, Ltd.
- Keisuke Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING SYSTEM AND METHOD OF DETECTING COLOR MISREGISTRATION
- Publication number 20080240754
- Publication date Oct 2, 2008
- Kazuhiko Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20080213000
- Publication date Sep 4, 2008
- Noriaki FUNAMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20080166153
- Publication date Jul 10, 2008
- Yasuhisa Ehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Image forming apparatus
- Publication number 20080131168
- Publication date Jun 5, 2008
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
METHOD, APPARATUS, AND PROGRAM FOR IMAGE FORMING CAPABLE OF EFFECTI...
- Publication number 20070274746
- Publication date Nov 29, 2007
- YASUHISA EHARA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus having enhanced controlling method for redu...
- Publication number 20070258729
- Publication date Nov 8, 2007
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus capable of effectively forming a quality co...
- Publication number 20070253736
- Publication date Nov 1, 2007
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGING APPARATUS
- Publication number 20070217830
- Publication date Sep 20, 2007
- Yuji Matsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20070212109
- Publication date Sep 13, 2007
- Joh Ebara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD OF EFFECTIVELY DET...
- Publication number 20070196132
- Publication date Aug 23, 2007
- Kazuhiko Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
Image forming apparatus having enhanced controlling method for redu...
- Publication number 20070140736
- Publication date Jun 21, 2007
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS USING THE SAME
- Publication number 20070122172
- Publication date May 31, 2007
- Joh Ebara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COLOR PRINTING APPARATUS CAPABLE OF COLOR REGISTRATION DIFFERENCE C...
- Publication number 20070110477
- Publication date May 17, 2007
- Seiichi Handa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Color drift error correcting method and image forming apparatus
- Publication number 20070097465
- Publication date May 3, 2007
- Kazuhiko Kobayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Image forming method and apparatus capable of effectively performin...
- Publication number 20060165422
- Publication date Jul 27, 2006
- Hideo Kikuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing device, process cartridge and image forming apparatus
- Publication number 20060056865
- Publication date Mar 16, 2006
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Yasuhisa Ehara

Person

Patents Grantslast 30 patents

Printed matter delivery system, image forming apparatus, and printe...

Driving device and image forming apparatus including the driving de...

Sheet conveyance device and image forming apparatus including same

Image forming apparatus

Image forming device

Image forming apparatus

Image forming apparatus and image forming method of effectively det...

Image forming apparatus

Multicolor imaging system

Image forming apparatus and image forming method

Drive transmission device, and image forming apparatus and process...

Image forming system and method of detecting color misregistration

Image forming apparatus

Image forming apparatus having enhanced controlling method for redu...

Image forming apparatus and image forming method of effectively det...

Image forming apparatus with color shift correction suppressing per...

Imaging apparatus adjusting a rotational stop phase based on a calc...

Color drift error correcting method and image forming apparatus

Image forming apparatus with fluctuation-pattern detection and fine...

Image forming apparatus capable of effectively forming a quality co...

Image forming apparatus having enhanced controlling method for redu...

Method, apparatus, and program for image forming capable of effecti...

Image forming method and apparatus capable of effectively performin...

Image forming apparatus

Image forming apparatus capable of correcting a rotation speed of a...

Color printing apparatus capable of color registration difference c...

Printer engine and color image forming device using this printer en...

Developing device, process cartridge and image forming apparatus

Transmission for image formation apparatus, method of manufacturing...

Image forming apparatus and method for preventing local damage of g...

Patents Applicationslast 30 patents

PRINTED MATTER DELIVERY SYSTEM, IMAGE FORMING APPARATUS, AND PRINTE...

DRIVING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE DRIVING DE...

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD OF EFFECTIVELY DET...

Image forming device

Sheet conveyance device and image forming apparatus including same

Image forming apparatus

Multicolor imaging system

Image forming apparatus

Image forming apparatus

Image forming apparatus

Image forming apparatus and image forming method

Image forming apparatus

Drive transmission device, and image forming apparatus and process...

IMAGE FORMING SYSTEM AND METHOD OF DETECTING COLOR MISREGISTRATION

IMAGE FORMING APPARATUS

Image forming apparatus

Image forming apparatus

METHOD, APPARATUS, AND PROGRAM FOR IMAGE FORMING CAPABLE OF EFFECTI...

Image forming apparatus having enhanced controlling method for redu...

Image forming apparatus capable of effectively forming a quality co...

IMAGING APPARATUS

Image forming apparatus

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD OF EFFECTIVELY DET...

IMAGE FORMING APPARATUS CAPABLE OF EFFECTIVELY FORMING A QUALITY CO...

Image forming apparatus having enhanced controlling method for redu...

IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS USING THE SAME

COLOR PRINTING APPARATUS CAPABLE OF COLOR REGISTRATION DIFFERENCE C...

Color drift error correcting method and image forming apparatus

Image forming method and apparatus capable of effectively performin...

Developing device, process cartridge and image forming apparatus