Inventor
OHTSU KAZUHIKO
JP37 patents
⚠️ This page may combine multiple inventors who share the name “OHTSU KAZUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA TEC KK
28 patentsUS7803851B2Sep 28, 2010
Inkjet ink
TOSHIBA TEC KK20 citations92
US7500745B2Mar 10, 2009
Liquid ink and recording apparatus
TOSHIBA TEC KK16 citations92
US9827778B2Nov 28, 2017
Ink circulation device and ink ejection device
TOSHIBA TEC KK9 citations84
US9694595B2Jul 4, 2017
Liquid circulation device, liquid discharge device and control method for the same
TOSHIBA TEC KK7 citations84
US7375145B2May 20, 2008
Inkjet ink
TOSHIBA TEC KK9 citations83
US7439281B2Oct 21, 2008
Pigment dispersion, precursor of ink for UV-curing type ink-jet recording, method of ink-jet recording, printed matter, and method of manufacturing pigment dispersion
TOSHIBA TEC KK6 citations74
US6312081B1Nov 6, 2001
Ink jet recording method
TOSHIBA TEC KK11 citations74
US10022978B2Jul 17, 2018
Ink circulation device and ink jet recording apparatus
TOSHIBA TEC KK4 citations73
US9987853B2Jun 5, 2018
Liquid circulation device, liquid discharge device and liquid discharge method
TOSHIBA TEC KK2 citations73
US9649849B2May 16, 2017
Ink circulation device and ink jet recording apparatus
TOSHIBA TEC KK4 citations73
US7473720B2Jan 6, 2009
Photosensitive inkjet ink
TOSHIBA TEC KK6 citations73
US7417074B2Aug 26, 2008
Ink for ink jet and ink jet recording apparatus
TOSHIBA TEC KK7 citations73
US7387380B2Jun 17, 2008
Liquid ink and recording apparatus
TOSHIBA TEC KK4 citations73
US9878535B2Jan 30, 2018
Ink circulation device and printer
TOSHIBA TEC KK2 citations72
US7754785B2Jul 13, 2010
Pigment dispersion, precursor of ink for UV-curing type ink-jet recording, method of ink-jet recording, printed matter, and method of manufacturing pigment dispersion
TOSHIBA TEC KK3 citations63
US7858670B2Dec 28, 2010
Photosensitive inkjet ink
TOSHIBA TEC KK6 citations62
US7404852B2Jul 29, 2008
Inkjet ink, inkjet recording method, method of evaluating inkjet ink, and method of manufacturing inkjet ink
TOSHIBA TEC KK4 citations62
US7579390B2Aug 25, 2009
Inkjet ink composition and printed matters created using inkjet ink composition
TOSHIBA TEC KK2 citations59
US12389177B2Aug 12, 2025
Information processing device and information processing program
TOSHIBA TEC KK0 citations52
US10611169B2Apr 7, 2020
Diaphragm pump, liquid circulation module and liquid discharge apparatus
TOSHIBA TEC KK0 citations52
US10343414B2Jul 9, 2019
Liquid circulation device, liquid discharge device and liquid discharge method
TOSHIBA TEC KK0 citations52
US10239325B2Mar 26, 2019
Liquid circulation device, liquid discharge device and liquid discharge method
TOSHIBA TEC KK0 citations52
US10160223B2Dec 25, 2018
Ink circulation device for ink jet head
TOSHIBA TEC KK1 citations52
US10065428B2Sep 4, 2018
Liquid circulation module and liquid ejection apparatus
TOSHIBA TEC KK1 citations52
US9033441B2May 19, 2015
Ink-jet printer and control method for ink-jet printer
TOSHIBA TEC KK0 citations52
US7425525B2Sep 16, 2008
Washing solution for inkjet printer head and washing method using the solution
TOSHIBA TEC KK1 citations52
US7285581B2Oct 23, 2007
Processed pigments, pigment-dispersed solution, ink for ink jet, manufacturing method of processed pigments and manufacturing method of pigment-dispersed solution
TOSHIBA TEC KK1 citations52
US10272692B2Apr 30, 2019
Liquid circulation device, liquid ejection apparatus, and liquid ejection method
TOSHIBA TEC KK0 citations42
TOSHIBA KK
7 patentsUS6959986B2Nov 1, 2005
Liquid ink and recording apparatus
TOSHIBA KK54 citations96
US7125112B2Oct 24, 2006
Liquid ink and recording apparatus
TOSHIBA KK12 citations92
US7108367B2Sep 19, 2006
Liquid ink and recording apparatus
TOSHIBA KK10 citations73
USRE46252EDec 27, 2016
Inkjet recording apparatus and recording method by the same
TOSHIBA KK1 citations63
US7896484B2Mar 1, 2011
Ink jet recording apparatus
TOSHIBA KK2 citations62
USRE46980EAug 7, 2018
Inkjet recording apparatus and recording method by the same usable with recycled paper
TOSHIBA KK0 citations52
US7926932B2Apr 19, 2011
Image forming apparatus and printing control method
TOSHIBA KK0 citations52