Yoshikuni Ishikawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Sheet feeder and image forming apparatus incorporating same
- Patent number 10,124,970
- Issue date Nov 13, 2018
- Ricoh Company, Ltd.
- Yoshikuni Ishikawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet feeder and image forming apparatus incorporating same
- Patent number 9,302,868
- Issue date Apr 5, 2016
- Ricoh Company, Ltd.
- Yoshikuni Ishikawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet conveyor and image forming apparatus incorporating same
- Patent number 9,290,341
- Issue date Mar 22, 2016
- Ricoh Company, Ltd.
- Yoshikuni Ishikawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet conveyor and image forming apparatus incorporating same
- Patent number 9,004,482
- Issue date Apr 14, 2015
- Ricoh Company, Ltd.
- Yoshikuni Ishikawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet conveying device, and image forming apparatus including same
- Patent number 8,944,708
- Issue date Feb 3, 2015
- Ricoh Company, Ltd.
- Hiroyuki Watase
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet separation/conveyance device and image forming apparatus inco...
- Patent number 8,857,809
- Issue date Oct 14, 2014
- Ricoh Company, Ltd.
- Tsugunao Toyooka
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet feeder and image forming apparatus
- Patent number 8,774,699
- Issue date Jul 8, 2014
- Ricoh Company, Ltd.
- Shun Kobayashi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Inkjet printer
- Patent number 8,752,955
- Issue date Jun 17, 2014
- Ricoh Company, Ltd.
- Shun Kobayashi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Sheet feeder and image forming apparatus incorporating same
- Patent number 8,746,675
- Issue date Jun 10, 2014
- Ricoh Company, Ltd.
- Hajime Nishida
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet feeding device and image forming apparatus incorporating same
- Patent number 8,628,074
- Issue date Jan 14, 2014
- Ricoh Company, Ltd.
- Hideto Higaki
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet feeder and image forming apparatus using the same
- Patent number 8,585,040
- Issue date Nov 19, 2013
- Ricoh Company, Ltd.
- Aki Ikeda
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet feeder and image forming apparatus
- Patent number 8,573,586
- Issue date Nov 5, 2013
- Ricoh Company, Ltd.
- Shun Kobayashi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Attachment assist device and image forming apparatus including same
- Patent number 8,532,557
- Issue date Sep 10, 2013
- Ricoh Company, Ltd.
- Tadashi Kusumi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet feeder and image forming apparatus incorporating same
- Patent number 8,523,170
- Issue date Sep 3, 2013
- Ricoh Company, Ltd.
- Hajime Nishida
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet feeding device and image forming apparatus incorporating same
- Patent number 8,511,668
- Issue date Aug 20, 2013
- Ricoh Company, Ltd.
- Yoshikuni Ishikawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet feeder and image forming apparatus incorporating same
- Patent number 8,480,073
- Issue date Jul 9, 2013
- Ricoh Company, Ltd.
- Yoshikuni Ishikawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet feeding device and image forming apparatus incorporating same
- Patent number 8,474,811
- Issue date Jul 2, 2013
- Ricoh Company, Ltd.
- Toshiaki Takahashi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet conveying device and image forming apparatus
- Patent number 8,439,347
- Issue date May 14, 2013
- Ricoh Company, Ltd.
- Yoshikuni Ishikawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet feeding device and image forming apparatus incorporating same
- Patent number 8,424,865
- Issue date Apr 23, 2013
- Ricoh Company, Ltd.
- Yosuke Eguchi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet conveying device and image forming apparatus
- Patent number 8,342,507
- Issue date Jan 1, 2013
- Ricoh Company, Ltd.
- Toshiaki Takahashi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet feeding device and image forming apparatus incorporating same
- Patent number 8,267,394
- Issue date Sep 18, 2012
- Ricoh Company, Ltd.
- Hideto Higaki
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet feeding device and image forming apparatus incorporating same
- Patent number 8,177,217
- Issue date May 15, 2012
- Ricoh Company, Ltd.
- Toshiaki Takahashi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet conveying apparatus, image scanning apparatus, and image form...
- Patent number 7,992,858
- Issue date Aug 9, 2011
- Ricoh Company, Ltd.
- Yasuhiro Sagawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet conveying path switching device used in image forming apparat...
- Patent number 7,708,276
- Issue date May 4, 2010
- Ricoh Company, Ltd.
- Naoyuki Okamoto
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet conveying apparatus, image reading apparatus, and image formi...
- Patent number 7,621,519
- Issue date Nov 24, 2009
- Ricoh Company, Limited
- Yasuhiro Sagawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

Information Patent Application
SHEET FEEDER AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20160194166
- Publication date Jul 7, 2016
- RICOH COMPANY, LTD.
- Yoshikuni ISHIKAWA
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
SHEET CONVEYOR AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20150166276
- Publication date Jun 18, 2015
- RICOH COMPANY, LTD.
- Yoshikuni ISHIKAWA
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
SHEET FEEDER AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20140312557
- Publication date Oct 23, 2014
- RICOH COMPANY, LTD.
- Yoshikuni ISHIKAWA
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
SHEET SEPARATION/CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS INCO...
- Publication number 20140070479
- Publication date Mar 13, 2014
- RICOH COMPANY, LTD.
- Tsugunao TOYOOKA
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
SHEET CONVEYOR AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20140001699
- Publication date Jan 2, 2014
- RICOH COMPANY, LTD.
- Yoshikuni ISHIKAWA
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
SHEET FEEDER AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20130300052
- Publication date Nov 14, 2013
- RICOH COMPANY, LTD.
- Hajime Nishida
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
SHEET FEEDER AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20130161894
- Publication date Jun 27, 2013
- RICOH COMPANY, LTD.
- Yoshikuni Ishikawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
INKJET PRINTER
- Publication number 20130113869
- Publication date May 9, 2013
- RICOH COMPANY, LTD.
- Shun Kobayashi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Sheet Feeding Device and Image Forming Apparatus Incorporating Same
- Publication number 20120306146
- Publication date Dec 6, 2012
- Hideto Higaki
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
SHEET FEEDER AND IMAGE FORMING APPARATUS USING THE SAME
- Publication number 20120235346
- Publication date Sep 20, 2012
- RICOH COMPANY, LTD.
- Aki Ikeda
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
SHEET FEEDER AND IMAGE FORMING APPARATUS
- Publication number 20120230745
- Publication date Sep 13, 2012
- RICOH COMPANY, LTD.
- Shun Kobayashi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
SHEET FEEDER AND IMAGE FORMING APPARATUS
- Publication number 20120228817
- Publication date Sep 13, 2012
- RICOH COMPANY, LTD.
- Shun Kobayashi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Sheet Feeding Device and Image Forming Apparatus Incorporating Same
- Publication number 20120193861
- Publication date Aug 2, 2012
- Toshiaki Takahashi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Sheet Feeder And Image Forming Apparatus Incorporating Same
- Publication number 20120170960
- Publication date Jul 5, 2012
- RICOH COMPANY, LTD.
- Hajime Nishida
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Sheet feeding device and image forming apparatus incorporating same
- Publication number 20120061903
- Publication date Mar 15, 2012
- RICOH COMPANY, LTD.
- Yosuke Eguchi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Sheet feeding device and image forming apparatus incorporating same
- Publication number 20120061904
- Publication date Mar 15, 2012
- RICOH COMPANY, LTD.
- Hideto Higaki
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Sheet conveying device and image forming apparatus
- Publication number 20110204558
- Publication date Aug 25, 2011
- RICOH COMPANY, LTD.
- Toshiaki Takahashi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Sheet conveying device and image forming apparatus
- Publication number 20110204557
- Publication date Aug 25, 2011
- RICOH COMPANY, LTD.
- Yoshikuni Ishikawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Sheet feeding device and image forming apparatus incorporating same
- Publication number 20110127711
- Publication date Jun 2, 2011
- Ricoh Company, Ltd.
- Toshiaki Takahashi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Sheet feeding device and image forming apparatus incorporating same
- Publication number 20110121506
- Publication date May 26, 2011
- Ricoh Company Ltd.
- Yoshikuni ISHIKAWA
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Attachment assist device and image forming apparatus including same
- Publication number 20110013973
- Publication date Jan 20, 2011
- Ricoh Company, Ltd.
- Tadashi Kusumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Sheet conveying device, and image forming apparatus including same
- Publication number 20080038039
- Publication date Feb 14, 2008
- Ricoh Company, Ltd.
- Hiroyuki Watase
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Sheet conveying path switching device used in image forming apparat...
- Publication number 20080001350
- Publication date Jan 3, 2008
- Naoyuki Okamoto
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Sheet conveying apparatus, image scanning apparatus, and image form...
- Publication number 20070246879
- Publication date Oct 25, 2007
- Yasuhiro Sagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Sheet conveying apparatus, image reading apparatus, and image formi...
- Publication number 20070057444
- Publication date Mar 15, 2007
- Yasuhiro Sagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Yoshikuni Ishikawa

Person

Patents Grantslast 30 patents

Sheet feeder and image forming apparatus incorporating same

Sheet feeder and image forming apparatus incorporating same

Sheet conveyor and image forming apparatus incorporating same

Sheet conveyor and image forming apparatus incorporating same

Sheet conveying device, and image forming apparatus including same

Sheet separation/conveyance device and image forming apparatus inco...

Sheet feeder and image forming apparatus

Inkjet printer

Sheet feeder and image forming apparatus incorporating same

Sheet feeding device and image forming apparatus incorporating same

Sheet feeder and image forming apparatus using the same

Sheet feeder and image forming apparatus

Attachment assist device and image forming apparatus including same

Sheet feeder and image forming apparatus incorporating same

Sheet feeding device and image forming apparatus incorporating same

Sheet feeder and image forming apparatus incorporating same

Sheet feeding device and image forming apparatus incorporating same

Sheet conveying device and image forming apparatus

Sheet feeding device and image forming apparatus incorporating same

Sheet conveying device and image forming apparatus

Sheet feeding device and image forming apparatus incorporating same

Sheet feeding device and image forming apparatus incorporating same

Sheet conveying apparatus, image scanning apparatus, and image form...

Sheet conveying path switching device used in image forming apparat...

Sheet conveying apparatus, image reading apparatus, and image formi...

Patents Applicationslast 30 patents

SHEET FEEDER AND IMAGE FORMING APPARATUS INCORPORATING SAME

SHEET CONVEYOR AND IMAGE FORMING APPARATUS INCORPORATING SAME

SHEET FEEDER AND IMAGE FORMING APPARATUS INCORPORATING SAME

SHEET SEPARATION/CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS INCO...

SHEET CONVEYOR AND IMAGE FORMING APPARATUS INCORPORATING SAME

SHEET FEEDER AND IMAGE FORMING APPARATUS INCORPORATING SAME

SHEET FEEDER AND IMAGE FORMING APPARATUS INCORPORATING SAME

INKJET PRINTER

Sheet Feeding Device and Image Forming Apparatus Incorporating Same

SHEET FEEDER AND IMAGE FORMING APPARATUS USING THE SAME

SHEET FEEDER AND IMAGE FORMING APPARATUS

SHEET FEEDER AND IMAGE FORMING APPARATUS

Sheet Feeding Device and Image Forming Apparatus Incorporating Same

Sheet Feeder And Image Forming Apparatus Incorporating Same

Sheet feeding device and image forming apparatus incorporating same

Sheet feeding device and image forming apparatus incorporating same

Sheet conveying device and image forming apparatus

Sheet conveying device and image forming apparatus

Sheet feeding device and image forming apparatus incorporating same

Sheet feeding device and image forming apparatus incorporating same

Attachment assist device and image forming apparatus including same

Sheet conveying device, and image forming apparatus including same

Sheet conveying path switching device used in image forming apparat...

Sheet conveying apparatus, image scanning apparatus, and image form...

Sheet conveying apparatus, image reading apparatus, and image formi...