Assignee
YAMADA RYUJI
JP18 patents
Top patents by PatentIndex Score
US8432710B2Apr 30, 2013
Power conversion apparatus
YAMADA RYUJI6 citations73
US9432571B2Aug 30, 2016
Storage medium and control device
YAMADA RYUJI2 citations63
US9002104B2Apr 7, 2015
Image processing apparatus
YAMADA RYUJI2 citations63
US8994981B2Mar 31, 2015
Calibration system
YAMADA RYUJI2 citations63
US8780424B2Jul 15, 2014
Image processing device
YAMADA RYUJI3 citations63
US8902621B2Dec 2, 2014
Power supply device for use with selectable AC power supply voltage
YAMADA RYUJI3 citations62
US9071162B2Jun 30, 2015
AC-AC converter with reduced inductive loss and switching loss
YAMADA RYUJI1 citations52
US8855445B2Oct 7, 2014
Image processing apparatus
YAMADA RYUJI1 citations52
US8823983B2Sep 2, 2014
Terminal device used to transmit image data for rapid printing
YAMADA RYUJI1 citations52
US8749842B2Jun 10, 2014
Image processor
YAMADA RYUJI1 citations52
US8059312B2Nov 15, 2011
Calibration data creating device
YAMADA RYUJI1 citations52
US9071166B2Jun 30, 2015
Power converter with surge voltage suppression
YAMADA RYUJI1 citations51
US9118862B2Aug 25, 2015
Image processing device having improved quality of its printed images
YAMADA RYUJI0 citations42
US8860999B2Oct 14, 2014
Control device
YAMADA RYUJI0 citations42
US8817322B2Aug 26, 2014
Image processing apparatus for generating distortion free image data with screen angle using dither matrix
YAMADA RYUJI0 citations42
US8643895B2Feb 4, 2014
Image processing device capable of saving ink consumption
YAMADA RYUJI0 citations42
US8576441B2Nov 5, 2013
Profile correcting method
YAMADA RYUJI0 citations42
US8422101B2Apr 16, 2013
Color conversion device
YAMADA RYUJI0 citations42