Inventor
TSUJI MASARU
JP35 patents
⚠️ This page may combine multiple inventors who share the name “TSUJI MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
32 patentsUS5680651AOct 21, 1997
Duplex printing apparatus
SHARP KK41 citations93
US6219498B1Apr 17, 2001
Image forming apparatus having improved image transfer characteristics
SHARP KK21 citations92
US6209864B1Apr 3, 2001
Sheet post-processing apparatus
SHARP KK43 citations92
US5528351AJun 18, 1996
Toner image fixing device with flat paper-guiding member
SHARP KK37 citations92
US5499089AMar 12, 1996
Toner image fixing device with deformable cylinder
SHARP KK34 citations92
US5177539AJan 5, 1993
Developing device
SHARP KK44 citations92
US4925062AMay 15, 1990
Paper feeder
SHARP KK43 citations92
US5347343ASep 13, 1994
Photosensitive drum cartridge and an image forming apparatus using the same
SHARP KK26 citations91
US5367366ANov 22, 1994
Corona charger for image forming apparatus providing uniform surface charge of a recording medium
SHARP KK29 citations90
US8870179B2Oct 28, 2014
Paper feed device and image forming apparatus provided with the same
SHARP KK8 citations84
US7735402B2Jun 15, 2010
Punching apparatus
SHARP KK10 citations82
US5017962AMay 21, 1991
Image forming apparatus with process-cartridges
SHARP KK21 citations81
US4933724AJun 12, 1990
Fixing device for electrophotography
SHARP KK15 citations74
US4802439AFeb 7, 1989
Pressure applying mechanism for fixing rollers of a copying apparatus
SHARP KK15 citations74
US4618247AOct 21, 1986
Photoreceptor pre-initializing electrophotographic copying machine
SHARP KK12 citations74
US8714542B2May 6, 2014
Feeder and image forming apparatus provided with the feeder
SHARP KK4 citations73
US6044236AMar 28, 2000
Image forming apparatus having improved image transfer characteristics
SHARP KK11 citations73
US5790931AAug 4, 1998
Fixing device
SHARP KK7 citations72
US5436431AJul 25, 1995
Toner image fixing device having improved lamp heater
SHARP KK9 citations71
US8002273B2Aug 23, 2011
Paper discharge apparatus, post-processing apparatus, and image forming apparatus
SHARP KK2 citations63
US7548722B2Jun 16, 2009
Switchback transport mechanism and image forming apparatus provided therewith
SHARP KK2 citations63
US7106998B2Sep 12, 2006
Fixing apparatus with guiding member for guiding releaser
SHARP KK3 citations63
US4840300AJun 20, 1989
Paper conveying roller for image forming apparatus
SHARP KK3 citations63
US7677561B2Mar 16, 2010
Transport roller, transport mechanism, and image forming apparatus
SHARP KK6 citations62
US5412213AMay 2, 1995
Charger for performing a corona discharge
SHARP KK6 citations61
US8038146B2Oct 18, 2011
Post-processing device and image forming apparatus provided with the same
SHARP KK1 citations52
US7409183B2Aug 5, 2008
Releasing agent applying mechanism, fixing device, and printing apparatus
SHARP KK0 citations52
US4746957AMay 24, 1988
Variable magnification copy machine
SHARP KK1 citations52
US7618039B2Nov 17, 2009
Sheet detecting apparatus and image forming apparatus
SHARP KK1 citations51
USRE46846EMay 15, 2018
Image forming apparatus provided with post-processing device
SHARP KK0 citations42
US8366100B2Feb 5, 2013
Discharge tray apparatus
SHARP KK0 citations42
US9079734B2Jul 14, 2015
Paper feeding device and image forming device
SHARP KK0 citations41