Hiroyuki Mabuchi

Person

Hitachinaka-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Developing device, and process cartridge and image forming apparatu...
- Patent number 9,658,576
- Issue date May 23, 2017
- Ricoh Company, Ltd.
- Hideki Kimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, process cartridge, and image forming apparatus i...
- Patent number 9,529,297
- Issue date Dec 27, 2016
- Ricoh Company, Ltd.
- Hiroaki Okamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with removable unit and a connectable devic...
- Patent number 9,507,313
- Issue date Nov 29, 2016
- Ricoh Company, Ltd.
- Junichi Terai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing unit, process cartridge, and image forming apparatus
- Patent number 9,395,652
- Issue date Jul 19, 2016
- Ricoh Company, Ltd.
- Hiroshi Kikuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner bottle driving device control method and image forming apparatus
- Patent number 9,360,816
- Issue date Jun 7, 2016
- Ricoh Company, Ltd.
- Hiroyuki Mabuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder supply device and image forming apparatus incorporating same
- Patent number 9,323,176
- Issue date Apr 26, 2016
- Ricoh Company, Ltd.
- Junichi Terai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder feeding device having negative pressure generation control a...
- Patent number 9,031,474
- Issue date May 12, 2015
- Ricoh Company, Ltd.
- Yukio Otome
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder feeding device having negative pressure generation control a...
- Patent number 8,837,992
- Issue date Sep 16, 2014
- Ricoh Company, Ltd.
- Yukio Otome
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Methods and apparatus for transferring a toner image via electropho...
- Patent number 7,970,307
- Issue date Jun 28, 2011
- Ricoh Company, Ltd.
- Hiroyuki Mabuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and tandem image forming apparatus
- Patent number 7,953,335
- Issue date May 31, 2011
- Ricoh Company, Ltd.
- Akitomo Kuwabara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Transfer apparatus, method of manufacturing the transfer apparatus...
- Patent number 7,873,312
- Issue date Jan 18, 2011
- Ricoh Company, Ltd.
- Takao Umeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer transporting amount controlling member, developing appara...
- Patent number 7,643,779
- Issue date Jan 5, 2010
- Ricoh Company, Ltd.
- Hiroyuki Mabuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and electrophotographic apparatus using the same
- Patent number 7,574,164
- Issue date Aug 11, 2009
- Ricoh Company Ltd.
- Hisao Okada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device using developer of particular properties suitable...
- Patent number 7,502,579
- Issue date Mar 10, 2009
- Ricoh Company, Ltd.
- Hiroyuki Mabuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus and electrostatic recording apparatus using th...
- Patent number 7,167,667
- Issue date Jan 23, 2007
- Ricoh Printing Systems, Ltd.
- Hiroyuki Mabuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image position detecting method
- Patent number 6,993,275
- Issue date Jan 31, 2006
- Ricoh Printing Systems, Ltd.
- Teruaki Mitsuya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus and electrostatic record apparatus
- Patent number 6,879,800
- Issue date Apr 12, 2005
- Ricoh Printing Systems, Ltd.
- Hiroyuki Mabuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Belt driving apparatus and image forming apparatus using the same
- Patent number 6,871,036
- Issue date Mar 22, 2005
- Hitachi, Ltd.
- Kenji Asuwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Multi-color printer and method therefor
- Patent number 6,853,829
- Issue date Feb 8, 2005
- Hitachi Printing Solutions, Ltd.
- Nobuyoshi Hoshi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Print control method of electrophotograph and image formation appar...
- Patent number 6,738,586
- Issue date May 18, 2004
- Hitachi Printing Solutions, Ltd.
- Keisuke Kubota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Perfecting press apparatus
- Patent number 6,694,119
- Issue date Feb 17, 2004
- Hitachi Printing Solutions, Ltd.
- Takashi Rokutanda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 6,684,036
- Issue date Jan 27, 2004
- Hitachi Koki Co., Ltd.
- Keisuke Kubota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming electrophotography apparatus and magnetic developing...
- Patent number 6,487,384
- Issue date Nov 26, 2002
- Hitachi Koki Co., Ltd.
- Hisao Okada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 6,330,405
- Issue date Dec 11, 2001
- Hitachi Koki Company Limited
- Masayoshi Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic printer having an image memory, a horizontal sc...
- Patent number 6,271,874
- Issue date Aug 7, 2001
- Hitachi Koki Co., Ltd.
- Seiji Maruo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color image forming method and device using potential division deve...
- Patent number 6,240,270
- Issue date May 29, 2001
- Hitachi Koki Co., Ltd.
- Teruaki Mitsuya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic printing apparatus using electric potential div...
- Patent number 6,131,000
- Issue date Oct 10, 2000
- Hitachi, Ltd.
- Shinichi Akatsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light exposure controlling method of electrophotographic apparatus...
- Patent number 5,884,119
- Issue date Mar 16, 1999
- Hitachi, Ltd.
- Seiji Maruo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic recording apparatus and electrostatic recording method
- Patent number 5,832,333
- Issue date Nov 3, 1998
- Hitachi Koki Co., Ltd.
- Takao Umeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic recording control method and electrostatic recording...
- Patent number 5,659,841
- Issue date Aug 19, 1997
- Hitachi Koki Co., Ltd.
- Takao Umeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS I...
- Publication number 20160202630
- Publication date Jul 14, 2016
- Hiroaki OKAMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160202660
- Publication date Jul 14, 2016
- Junichi TERAI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, AND PROCESS CARTRIDGE AND IMAGE FORMING APPARATU...
- Publication number 20160170329
- Publication date Jun 16, 2016
- Hideki KIMURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER BOTTLE DRIVING DEVICE CONTROL METHOD AND IMAGE FORMING APPARATUS
- Publication number 20160170356
- Publication date Jun 16, 2016
- Hiroyuki MABUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING UNIT, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20160070208
- Publication date Mar 10, 2016
- RICOH COMPANY, LTD.
- Hiroshi KIKUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER SUPPLY DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20160041498
- Publication date Feb 11, 2016
- Junichi TERAI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER FEEDING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20140341618
- Publication date Nov 20, 2014
- RICOH COMPANY, LTD.
- Yukio Otome
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Powder feeding device and image forming apparatus
- Publication number 20120063814
- Publication date Mar 15, 2012
- RICOH COMPANY, LTD.
- Yukio Otome
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TRANSFER APPARATUS, TRANSFER METHOD, AND IMAGE FORMING APPARATUS
- Publication number 20090010667
- Publication date Jan 8, 2009
- Hiroyuki MABUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND TANDEM IMAGE FORMING APPARATUS
- Publication number 20080226321
- Publication date Sep 18, 2008
- Akitomo Kuwabara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TRANSFER APPARATUS, METHOD OF MANUFACTURING THE TRANSFER APPARATUS...
- Publication number 20080152399
- Publication date Jun 26, 2008
- Takao Umeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developer transporting amount controlling member, developing appara...
- Publication number 20070196138
- Publication date Aug 23, 2007
- Hiroyuki Mabuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing device and electrophotographic apparatus using the same
- Publication number 20070172262
- Publication date Jul 26, 2007
- Ricoh Printing Systems, Ltd.
- Hisao Okada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing device and electrostatic recording device
- Publication number 20060045575
- Publication date Mar 2, 2006
- Hiroyuki Mabuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing apparatus and electrostatic recording apparatus using th...
- Publication number 20050123312
- Publication date Jun 9, 2005
- Ricoh Printing Systems, Ltd.
- Hiroyuki Mabuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus and charging device
- Publication number 20050053396
- Publication date Mar 10, 2005
- Hitachi Printing Solutions, Ltd.
- Tatsuya Kubo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image position detecting method
- Publication number 20040179870
- Publication date Sep 16, 2004
- Teruaki Mitsuya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Belt driving apparatus and image forming apparatus using the same
- Publication number 20040126151
- Publication date Jul 1, 2004
- Kenji Asuwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing apparatus and electrostatic record apparatus
- Publication number 20030185600
- Publication date Oct 2, 2003
- HITACHI PRINTING SOLUTIONS, LTD.
- Hiroyuki Mabuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Perfecting press apparatus
- Publication number 20030170052
- Publication date Sep 11, 2003
- HITACHI PRINTING SOLUTIONS, LTD.
- Takashi Rokutanda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Multi-color printer and method therefor
- Publication number 20030129006
- Publication date Jul 10, 2003
- HITACHI PRINTING SOLUTIONS, LTD.
- Nobuyoshi Hoshi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20020127027
- Publication date Sep 12, 2002
- Keisuke Kubota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Print control method of electrophotograph and image formation appar...
- Publication number 20020127026
- Publication date Sep 12, 2002
- Keisuke Kubota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus and developing unit used therein
- Publication number 20020057930
- Publication date May 16, 2002
- Hisao Okada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Hiroyuki Mabuchi

Person

Patents Grantslast 30 patents

Developing device, and process cartridge and image forming apparatu...

Developing device, process cartridge, and image forming apparatus i...

Image forming apparatus with removable unit and a connectable devic...

Developing unit, process cartridge, and image forming apparatus

Toner bottle driving device control method and image forming apparatus

Powder supply device and image forming apparatus incorporating same

Powder feeding device having negative pressure generation control a...

Powder feeding device having negative pressure generation control a...

Methods and apparatus for transferring a toner image via electropho...

Image forming apparatus and tandem image forming apparatus

Transfer apparatus, method of manufacturing the transfer apparatus...

Developer transporting amount controlling member, developing appara...

Developing device and electrophotographic apparatus using the same

Developing device using developer of particular properties suitable...

Developing apparatus and electrostatic recording apparatus using th...

Image position detecting method

Developing apparatus and electrostatic record apparatus

Belt driving apparatus and image forming apparatus using the same

Multi-color printer and method therefor

Print control method of electrophotograph and image formation appar...

Perfecting press apparatus

Image forming apparatus

Image forming electrophotography apparatus and magnetic developing...

Image forming apparatus

Electrophotographic printer having an image memory, a horizontal sc...

Color image forming method and device using potential division deve...

Electrophotographic printing apparatus using electric potential div...

Light exposure controlling method of electrophotographic apparatus...

Electrostatic recording apparatus and electrostatic recording method

Electrostatic recording control method and electrostatic recording...

Patents Applicationslast 30 patents

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS I...

IMAGE FORMING APPARATUS

DEVELOPING DEVICE, AND PROCESS CARTRIDGE AND IMAGE FORMING APPARATU...

TONER BOTTLE DRIVING DEVICE CONTROL METHOD AND IMAGE FORMING APPARATUS

DEVELOPING UNIT, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

POWDER SUPPLY DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

POWDER FEEDING DEVICE AND IMAGE FORMING APPARATUS

Powder feeding device and image forming apparatus

TRANSFER APPARATUS, TRANSFER METHOD, AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND TANDEM IMAGE FORMING APPARATUS

TRANSFER APPARATUS, METHOD OF MANUFACTURING THE TRANSFER APPARATUS...

Developer transporting amount controlling member, developing appara...

Developing device and electrophotographic apparatus using the same

Developing device and electrostatic recording device

Developing apparatus and electrostatic recording apparatus using th...

Image forming apparatus and charging device

Image position detecting method

Belt driving apparatus and image forming apparatus using the same

Developing apparatus and electrostatic record apparatus

Perfecting press apparatus

Multi-color printer and method therefor

Image forming apparatus

Print control method of electrophotograph and image formation appar...

Image forming apparatus and developing unit used therein