Inventor
NAGAI KIYOFUMI
JP82 patents
⚠️ This page may combine multiple inventors who share the name “NAGAI KIYOFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
38 patentsUS5431720AJul 11, 1995
Aqueous ink composition and ink-jet printing method using the same
RICOH KK220 citations99
US6695443B2Feb 24, 2004
Ink for ink jet recording, ink set for ink jet recording, method for ink jet recording, ink cartridge for ink jet recording, ink jet recording apparatus and recorded article
RICOH KK76 citations98
US6231652B1May 15, 2001
Aqueous ink compositions and ink-jet printing method using the same
RICOH KK89 citations97
US5993524ANov 30, 1999
Image recording method, image recording apparatus and image recording acceleration liquid
RICOH KK107 citations97
US5972082AOct 26, 1999
Aqueous ink composition and ink-jet printing method using the same
RICOH KK93 citations97
US5882390AMar 16, 1999
Recording ink composition and recording method using the same
RICOH KK108 citations97
US5879439AMar 9, 1999
Recording ink composition and recording method using the same
RICOH KK122 citations97
US6786588B2Sep 7, 2004
Pretreatment liquid for recording material and image recording method using the pretreatment liquid
RICOH KK58 citations96
US6613136B1Sep 2, 2003
Recording ink composition and ink-jet printing method using the same
RICOH KK72 citations96
US6261349B1Jul 17, 2001
Image recording method image recording apparatus and image recording acceleration liquid
RICOH KK64 citations96
US6120589ASep 19, 2000
Set of color ink compositions for ink-jet printing and method of forming color images using the color ink set
RICOH KK74 citations96
US5810915ASep 22, 1998
Aqueous ink composition and image formation method using the same
RICOH KK71 citations96
US5622550AApr 22, 1997
Yellow ink composition for ink-jet printing and image recording method using the same
RICOH KK83 citations96
US5514208AMay 7, 1996
Aqueous ink and method for recording image with the aqueous ink
RICOH KK76 citations96
US5462592AOct 31, 1995
Aqueous ink composition
RICOH KK59 citations96
US4793860ADec 27, 1988
Aqueous ink composition
RICOH KK59 citations96
US4711668ADec 8, 1987
Aqueous ink composition
RICOH KK93 citations96
US4647310AMar 3, 1987
Aqueous ink composition for ink jet-recording
RICOH KK86 citations96
US7699457B2Apr 20, 2010
Recording ink, ink cartridge, ink record, inkjet recording apparatus, and inkjet recording method
RICOH KK28 citations93
US7370952B2May 13, 2008
Ink, and, inkjet recording process, ink cartridge, recording unit, and inkjet recording apparatus using the ink
RICOH KK37 citations93
US7278726B2Oct 9, 2007
Ink jet recording ink set
RICOH KK31 citations93
US6637875B2Oct 28, 2003
Aqueous recording liquid, recording method and apparatus using same
RICOH KK25 citations93
US5736286AApr 7, 1998
Method for recycling image-deposited recording material and liquid composition for use with the recycling method
RICOH KK49 citations93
US7810919B2Oct 12, 2010
Recording ink, ink cartridge, ink record, inkjet recording apparatus, and inkjet recording method
RICOH KK34 citations92
US7682011B2Mar 23, 2010
Recording ink, ink cartridge, ink record, inkjet recording apparatus and inkjet recording process
RICOH KK28 citations92
US7284851B2Oct 23, 2007
Inkjet recording ink, recording process and recording apparatus
RICOH KK39 citations92
US7094813B2Aug 22, 2006
Ink-jet recording ink, ink-jet recording ink set, ink cartridge, ink-jet printer, and ink-jet printing method
RICOH KK35 citations92
US7033013B2Apr 25, 2006
Pretreatment liquid for recording material and image recording method using the pretreatment liquid
RICOH KK36 citations92
US6918662B2Jul 19, 2005
Ink composition and inkjet recording method and apparatus using the ink composition
RICOH KK26 citations92
US6899751B2May 31, 2005
Ink for ink jet recording, ink jet recording method, ink cartridge and ink jet recording apparatus
RICOH KK23 citations92
US6730155B2May 4, 2004
Aqueous ink composition
RICOH KK38 citations92
US6730149B2May 4, 2004
Ink composition and inkjet recording method and apparatus using the ink composition
RICOH KK39 citations92
US6688737B2Feb 10, 2004
Recording liquid, inkjet recording method and recording equipment using the same
RICOH KK29 citations92
US5400065AMar 21, 1995
Method and apparatus for forming image on a member with image forming liquid by selective application of heat and/or pressure
RICOH KK27 citations92
US5175568ADec 29, 1992
Process and apparatus for forming image on novel recording medium
RICOH KK36 citations92
US5769957AJun 23, 1998
Regenerating method and apparatus of image holding supporting member
RICOH KK32 citations91
US7812068B2Oct 12, 2010
Recording ink, inkjet recording method and inkjet recording apparatus using the same
RICOH KK17 citations84
US7374608B2May 20, 2008
Ink for ink jet recording, ink jet recording method, ink cartridge and ink jet recording apparatus
RICOH KK9 citations84
GOTO HIROSHI
6 patentsUS8242201B2Aug 14, 2012
Pigment dispersion, recording ink, ink cartridge, ink-jet recording method and ink-jet recording apparatus
GOTO HIROSHI47 citations98
US9085706B2Jul 21, 2015
Inkjet ink, ink cartridge, inkjet recording method, inkjet recording device, and inkjet recorded matter
GOTO HIROSHI7 citations84
US9062217B2Jun 23, 2015
Liquid composition, recording method, and recorded matter
GOTO HIROSHI11 citations84
US9028600B2May 12, 2015
Inkjet ink, inkjet recording method, and inkjet recording device
GOTO HIROSHI10 citations84
US8857962B2Oct 14, 2014
Image forming method and image formed record
GOTO HIROSHI17 citations84
US8109622B2Feb 7, 2012
Recording ink, ink cartridge, inkjet recording method, and inkjet recording apparatus
GOTO HIROSHI17 citations84
RICOH CO LTD
4 patentsUS8044114B2Oct 25, 2011
Ink for recording, and ink cartridge, ink recorded matter, inkjet recording apparatus and inkjet recording method using the same
RICOH CO LTD21 citations92
US7892340B2Feb 22, 2011
Ink-jet recording ink, ink-jet recording ink set, ink-jet recording ink media set, ink cartridge, ink-jet recording method and ink-jet recording apparatus
RICOH CO LTD29 citations92
US8029122B2Oct 4, 2011
Recording ink, inkjet recording method and inkjet recording apparatus
RICOH CO LTD18 citations84
US7950793B2May 31, 2011
Recording ink, ink cartridge, ink record, inkjet recording apparatus and inkjet recording process
RICOH CO LTD16 citations84
NAGASHIMA HIDEFUMI
1 patentMOROHOSHI NAOYA
1 patentShowing the top 50 of 82 patents by PatentIndex Score.