Inventor
OKAMURA DAIJI
JP45 patents
⚠️ This page may combine multiple inventors who share the name “OKAMURA DAIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
34 patentsUS7270701B2Sep 18, 2007
Ink jet ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
CANON KK64 citations97
US7160372B2Jan 9, 2007
Ink jet ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
CANON KK65 citations97
US7144452B2Dec 5, 2006
Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
CANON KK56 citations96
US8029612B2Oct 4, 2011
Ink jet ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
CANON KK22 citations92
US7699924B2Apr 20, 2010
Aqueous ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
CANON KK23 citations92
US7682433B2Mar 23, 2010
Ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
CANON KK28 citations92
US7618484B2Nov 17, 2009
Ink jet ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
CANON KK43 citations92
US7611571B2Nov 3, 2009
Ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
CANON KK38 citations92
US7553358B2Jun 30, 2009
Ink jet ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
CANON KK28 citations92
US7297197B2Nov 20, 2007
Ink jet ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
CANON KK44 citations92
US7247194B2Jul 24, 2007
Ink jet ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
CANON KK50 citations92
US7247196B2Jul 24, 2007
Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
CANON KK47 citations92
US7201791B2Apr 10, 2007
Ink jet light-color ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
CANON KK38 citations92
US7198664B2Apr 3, 2007
Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
CANON KK41 citations92
US7198665B2Apr 3, 2007
Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
CANON KK46 citations92
US7566362B2Jul 28, 2009
Ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
CANON KK47 citations91
US8016932B2Sep 13, 2011
Aqueous ink, ink set, image forming method and image forming apparatus
CANON KK15 citations84
US9452608B2Sep 27, 2016
Ink, ink cartridge and ink jet recording method
CANON KK13 citations83
US9387679B2Jul 12, 2016
Ink jet recording method and ink jet recording apparatus
CANON KK12 citations83
US9169413B2Oct 27, 2015
Ink, ink cartridge and ink jet recording method
CANON KK10 citations83
US10301495B2May 28, 2019
Ink jet recording method and ink jet recording apparatus
CANON KK2 citations73
US8757776B2Jun 24, 2014
Ink jet ink, ink set, ink jet recording method, ink cartridge, recording unit and ink jet recording appratus
CANON KK5 citations73
US10253197B2Apr 9, 2019
Aqueous ink, ink cartridge and ink jet recording method
CANON KK4 citations72
US9499704B2Nov 22, 2016
Ink, ink cartridge, and ink jet recording method
CANON KK4 citations72
US10125284B2Nov 13, 2018
Aqueous ink, ink cartridge, and ink jet recording method
CANON KK5 citations70
US11613129B2Mar 28, 2023
Aqueous ink, ink cartridge and ink jet recording method
CANON KK2 citations68
US7717991B2May 18, 2010
Inkjet ink, method for producing the same, ink cartridge, and inkjet recording method
CANON KK2 citations62
US9505941B2Nov 29, 2016
Ink, ink cartridge, and inkjet recording method
CANON KK2 citations61
US12590218B2Mar 31, 2026
Aqueous fluorescent ink, ink cartridge and ink jet recording method
CANON KK0 citations58
US12466969B2Nov 11, 2025
Aqueous ink, ink cartridge and ink jet recording method
CANON KK0 citations58
US11492483B2Nov 8, 2022
Aqueous ink, ink cartridge and ink jet recording method
CANON KK1 citations58
US7981206B2Jul 19, 2011
Inkjet ink, method for producing the same, ink cartridge, and inkjet recording method
CANON KK1 citations52
US8991993B2Mar 31, 2015
Ink, ink cartridge, and inkjet recording method
CANON KK1 citations51
US12209193B2Jan 28, 2025
Ink jet recording method and ink jet recording apparatus
CANON KK0 citations50
YAMAKAMI HIDEKI
2 patentsUS8500265B2Aug 6, 2013
Ink jet ink, ink set, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
YAMAKAMI HIDEKI6 citations82
US8123846B2Feb 28, 2012
Ink jet ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
YAMAKAMI HIDEKI12 citations82