Inventor
TSUJI YASUYUKI
JP24 patents
⚠️ This page may combine multiple inventors who share the name “TSUJI YASUYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI KOKI KK
14 patentsUS5790168AAug 4, 1998
Printing apparatus with movable slitter for printed paper sheet
HITACHI KOKI KK38 citations90
US5572290ANov 5, 1996
Electrophotographic printing system including a plurality of electrophotographic printers having adjustable printing speeds
HITACHI KOKI KK23 citations90
US5179417AJan 12, 1993
Apparatus for printing on opposite surfaces of a strip of printing paper
HITACHI KOKI KK30 citations89
US5402409AMar 28, 1995
Optical recording apparatus and method for adding information in a sub-scanning direction and for deflecting a light beam to an optimum sub-scanning recording position
HITACHI KOKI KK15 citations73
US4774545ASep 27, 1988
Cut paper electrophotographic printers with continuous paper feed mechanisms
HITACHI KOKI KK15 citations73
US5818496AOct 6, 1998
Exposure device of electrophotographic apparatus with optical path position deciding device
HITACHI KOKI KK11 citations71
US5545840AAug 13, 1996
Developing device in electrophotographic apparatus including developing poll configuration while stably carries developer
HITACHI KOKI KK15 citations71
US5416571AMay 16, 1995
Developing device for electrophotograph-type printer
HITACHI KOKI KK11 citations71
USD305130SDec 19, 1989
Line printer for a computer
HITACHI KOKI KK6 citations69
US4926216AMay 15, 1990
Feeder of sheet-like photo-sensitive material
HITACHI KOKI KK2 citations62
US5516982AMay 14, 1996
Developing apparatus having developer regulating member
HITACHI KOKI KK5 citations60
US5453820ASep 26, 1995
Developing device having a developer mixing chamber for use in electrophotographic apparatus
HITACHI KOKI KK1 citations51
US5359396AOct 25, 1994
Toner density detection method for electrophotographic apparatus
HITACHI KOKI KK1 citations51
US5561514AOct 1, 1996
Image forming apparatus and sheet arranging method for the apparatus
HITACHI KOKI KK0 citations50
HITACHI LTD
6 patentsUS5006705AApr 9, 1991
Light beam scanning apparatus with controller for varying spacing between a plurality of scanning beams
HITACHI LTD57 citations96
US5774777AJun 30, 1998
Continuous recording medium friction-conveying mechanism in image forming apparatus
HITACHI LTD36 citations92
US5018718AMay 28, 1991
Sheet registration method and apparatus for calculation of delay time and sheet feed control thereby
HITACHI LTD29 citations92
US5039086AAug 13, 1991
Method and apparatus for adjusting posture of sheets
HITACHI LTD21 citations82
US4908634AMar 13, 1990
Laser power control for cut-paper printer
HITACHI LTD16 citations73
US5459562AOct 17, 1995
Recording apparatus for printing both faces of a recording medium using an electrophotographyprocess
HITACHI LTD16 citations72