Junji Shirakawa

Person

Katsuta, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Sheet conveyor and image forming apparatus incorporating the sheet...
- Patent number 9,348,284
- Issue date May 24, 2016
- Ricoh Company, Ltd.
- Takeshi Watanabe
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet aligning device and image forming apparatus including the same
- Patent number 9,193,550
- Issue date Nov 24, 2015
- Ricoh Company, Ltd.
- Takayuki Muneyasu
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet aligning device and image forming apparatus including the same
- Patent number 8,985,578
- Issue date Mar 24, 2015
- Ricoh Company, Ltd.
- Takayuki Muneyasu
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Belt device and image forming apparatus
- Patent number 8,577,261
- Issue date Nov 5, 2013
- Ricoh Company, Limited
- Makoto Nakura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Pressing mechanism, transfer device, and image forming apparatus
- Patent number 8,515,310
- Issue date Aug 20, 2013
- Ricoh Company, Limited
- Makoto Nakura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,498,566
- Issue date Jul 30, 2013
- Ricoh Company, Limited
- Yutaka Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,451,466
- Issue date May 28, 2013
- Ricoh Company, Ltd.
- Yutaka Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Sheet aligning device and image forming apparatus including the same
- Patent number 8,419,013
- Issue date Apr 16, 2013
- Ricoh Company, Ltd.
- Takayuki Muneyasu
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Image forming apparatus
- Patent number 8,417,176
- Issue date Apr 9, 2013
- Ricoh Company, Ltd.
- Yutaka Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus which continues to convey a sheet if the sh...
- Patent number 8,355,642
- Issue date Jan 15, 2013
- Ricoh Company, Ltd.
- Yutaka Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Sheet conveyance unit and image forming apparatus including same
- Patent number 8,317,192
- Issue date Nov 27, 2012
- Ricoh Company, Ltd.
- Yuji Karikusa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Belt device and image forming apparatus having a belt correcting un...
- Patent number 8,238,793
- Issue date Aug 7, 2012
- Ricoh Company, Limited
- Makoto Nakura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Conveying device and image forming apparatus
- Patent number 8,213,851
- Issue date Jul 3, 2012
- Ricoh Company, Limited
- Yutaka Shoji
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Image forming apparatus having a transport status detection unit
- Patent number 8,160,462
- Issue date Apr 17, 2012
- Ricoh Company, Ltd.
- Yutaka Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Sheet decurling device and image forming apparatus
- Patent number 8,113,514
- Issue date Feb 14, 2012
- Ricoh Company, Limited
- Yasuyuki Sekino
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Pressure-applying device, transfer device, and image forming apparatus
- Patent number 8,095,056
- Issue date Jan 10, 2012
- Ricoh Company, Ltd.
- Susumu Mikajiri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Conveying device and image forming apparatus
- Patent number 8,025,288
- Issue date Sep 27, 2011
- Ricoh Company, Ltd.
- Yutaka Shoji
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Contacting and separating mechanism and image forming apparatus
- Patent number 8,014,701
- Issue date Sep 6, 2011
- Ricoh Company, Ltd.
- Makoto Nakura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming system having enhanced functionality
- Patent number 7,931,263
- Issue date Apr 26, 2011
- Ricoh Company, Ltd.
- Hiroshi Takahagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a control device which is rotatably...
- Patent number 7,822,359
- Issue date Oct 26, 2010
- Ricoh Company, Ltd.
- Koji Kawahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Sheet conveying device and image forming apparatus
- Patent number 7,722,039
- Issue date May 25, 2010
- Ricoh Company, Limited
- Yutaka Shoji
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Image forming apparatus
- Patent number 7,010,242
- Issue date Mar 7, 2006
- Ricoh Printing Systems, Inc.
- Takashi Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic apparatus having a paper holding member
- Patent number 6,640,078
- Issue date Oct 28, 2003
- Hitachi Koki Co., Ltd.
- Kenji Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Sheet accommodating device
- Patent number 6,254,086
- Issue date Jul 3, 2001
- Hitachi Koki Co., Ltd.
- Kazuo Sunou
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Photosensitive drum for printer
- Patent number D438892
- Issue date Mar 13, 2001
- Hitachi Koki Co., Ltd.
- Yuichiro Suzuki
- D18 - Printing and office machinery
Information Patent Grant
Image forming apparatus
- Patent number 6,137,968
- Issue date Oct 24, 2000
- Hitachi Koki Company Limited
- Kazuo Sunou
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Printer for a computer
- Patent number D413140
- Issue date Aug 24, 1999
- Hitachi Koki Co., Ltd.
- Hideki Ishida
- D18 - Printing and office machinery
Information Patent Grant
Image recording apparatus, and sheet conveying method thereof
- Patent number 5,937,261
- Issue date Aug 10, 1999
- Hitachi Koki Co., Ltd.
- Junji Shirakawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Xerographic printing machine with an improved transfer unit
- Patent number 5,182,605
- Issue date Jan 26, 1993
- Hitachi Koki Co. Ltd.
- Masato Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Transfer unit for xerographic printing machine with constant ventil...
- Patent number 5,179,412
- Issue date Jan 12, 1993
- Hitachi Koki Co., Ltd.
- Masato Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
SHEET CONVEYOR AND IMAGE FORMING APPARATUS INCORPORATING THE SHEET...
- Publication number 20150220030
- Publication date Aug 6, 2015
- Takeshi WATANABE
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
SHEET ALIGNING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME
- Publication number 20150151939
- Publication date Jun 4, 2015
- RICOH COMPANY, LTD.
- Takayuki MUNEYASU
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20130294804
- Publication date Nov 7, 2013
- Yutaka Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SHEET ALIGNING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME
- Publication number 20130187331
- Publication date Jul 25, 2013
- Takayuki Muneyasu
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
BELT DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20120257915
- Publication date Oct 11, 2012
- Makoto NAKURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Sheet conveyance unit and image forming apparatus including same
- Publication number 20110316226
- Publication date Dec 29, 2011
- RICOH COMPANY, LTD.
- Yuji Karikusa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20090310983
- Publication date Dec 17, 2009
- Yutaka SHOJI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PRESSING MECHANISM, TRANSFER DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20090245864
- Publication date Oct 1, 2009
- Makoto NAKURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
BELT DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20090180805
- Publication date Jul 16, 2009
- Makoto NAKURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CONTACTING AND SEPARATING MECHANISM AND IMAGE FORMING APPARATUS
- Publication number 20090162114
- Publication date Jun 25, 2009
- Makoto NAKURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20090073514
- Publication date Mar 19, 2009
- Yutaka Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PRESSURE-APPLYING DEVICE, TRANSFER DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20090067892
- Publication date Mar 12, 2009
- Susumu Mikajiri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20090060608
- Publication date Mar 5, 2009
- Ricoh Company, Limited
- Yutaka Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20090052965
- Publication date Feb 26, 2009
- Ricoh Company Limited
- Yutaka Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20090041485
- Publication date Feb 12, 2009
- Yutaka Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Sheet decurling device and image forming apparatus
- Publication number 20080315496
- Publication date Dec 25, 2008
- Ricoh Company, Limited
- Yasuyuki Sekino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Sheet conveying device and image forming apparatus
- Publication number 20080296828
- Publication date Dec 4, 2008
- Ricoh Company, Limited
- Yutaka Shoji
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Sheet aligning device and image forming apparatus using the same
- Publication number 20080251998
- Publication date Oct 16, 2008
- Takayuki Muneyasu
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Conveying device and image forming apparatus
- Publication number 20080240821
- Publication date Oct 2, 2008
- Ricoh Company, Limited
- Yutaka Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20080232866
- Publication date Sep 25, 2008
- Ricoh Company, Limited
- Yutaka Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Conveying device and image forming apparatus
- Publication number 20080232879
- Publication date Sep 25, 2008
- Ricoh Company, Limited
- Yutaka Shoji
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Sheet aligning device and image forming apparatus including the same
- Publication number 20080054553
- Publication date Mar 6, 2008
- Takayuki Muneyasu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20080056761
- Publication date Mar 6, 2008
- Koji KAWAHARA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming system having enhanced functionality
- Publication number 20070296135
- Publication date Dec 27, 2007
- Hiroshi Takahagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20040028436
- Publication date Feb 12, 2004
- HITACHI PRINTING SOLUTIONS, LTD.
- Takashi Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrophotographic apparatus
- Publication number 20010010769
- Publication date Aug 2, 2001
- Kenji Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Junji Shirakawa

Person

Patents Grantslast 30 patents

Sheet conveyor and image forming apparatus incorporating the sheet...

Sheet aligning device and image forming apparatus including the same

Sheet aligning device and image forming apparatus including the same

Belt device and image forming apparatus

Pressing mechanism, transfer device, and image forming apparatus

Image forming apparatus

Image forming apparatus

Sheet aligning device and image forming apparatus including the same

Image forming apparatus

Image forming apparatus which continues to convey a sheet if the sh...

Sheet conveyance unit and image forming apparatus including same

Belt device and image forming apparatus having a belt correcting un...

Conveying device and image forming apparatus

Image forming apparatus having a transport status detection unit

Sheet decurling device and image forming apparatus

Pressure-applying device, transfer device, and image forming apparatus

Conveying device and image forming apparatus

Contacting and separating mechanism and image forming apparatus

Image forming system having enhanced functionality

Image forming apparatus having a control device which is rotatably...

Sheet conveying device and image forming apparatus

Image forming apparatus

Electrophotographic apparatus having a paper holding member

Sheet accommodating device

Photosensitive drum for printer

Image forming apparatus

Printer for a computer

Image recording apparatus, and sheet conveying method thereof

Xerographic printing machine with an improved transfer unit

Transfer unit for xerographic printing machine with constant ventil...

Patents Applicationslast 30 patents

SHEET CONVEYOR AND IMAGE FORMING APPARATUS INCORPORATING THE SHEET...

SHEET ALIGNING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME

IMAGE FORMING APPARATUS

SHEET ALIGNING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME

BELT DEVICE AND IMAGE FORMING APPARATUS

Sheet conveyance unit and image forming apparatus including same

IMAGE FORMING APPARATUS

PRESSING MECHANISM, TRANSFER DEVICE, AND IMAGE FORMING APPARATUS

BELT DEVICE AND IMAGE FORMING APPARATUS

CONTACTING AND SEPARATING MECHANISM AND IMAGE FORMING APPARATUS

Image forming apparatus

PRESSURE-APPLYING DEVICE, TRANSFER DEVICE, AND IMAGE FORMING APPARATUS

Image forming apparatus

Image forming apparatus

Image forming apparatus

Sheet decurling device and image forming apparatus

Sheet conveying device and image forming apparatus

Sheet aligning device and image forming apparatus using the same

Conveying device and image forming apparatus

Image forming apparatus

Conveying device and image forming apparatus

Sheet aligning device and image forming apparatus including the same

IMAGE FORMING APPARATUS

Image forming system having enhanced functionality

Image forming apparatus

Electrophotographic apparatus