Inventor
SAKAIZAWA KATSUHIRO
JP41 patents
⚠️ This page may combine multiple inventors who share the name “SAKAIZAWA KATSUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
40 patentsUS5570451AOct 29, 1996
Image forming apparatus including plural image forming means and plural recording medium transport passages
CANON KK59 citations96
US6915094B2Jul 5, 2005
Composition for accessing a memory in image formation apparatus and method for accessing a memory in image formation apparatus
CANON KK19 citations92
US6751423B2Jun 15, 2004
Developing apparatus and image forming apparatus
CANON KK26 citations92
US6345166B1Feb 5, 2002
Developer scraping member and developing apparatus
CANON KK23 citations92
US6229980B1May 8, 2001
Developing apparatus featuring first and second developer chambers and guide member for directing stripped-off developer
CANON KK36 citations92
US5970279AOct 19, 1999
Image forming apparatus
CANON KK34 citations92
US5809379ASep 15, 1998
Electrophotography having photosensitive member with charge blocking overlayer
CANON KK32 citations92
US5729785AMar 17, 1998
Image forming apparatus with ink jet and electrophotographic image forming means
CANON KK42 citations92
US5570166AOct 29, 1996
Developing apparatus that applies voltage to developer layer thickness regulating member
CANON KK46 citations92
US5561500AOct 1, 1996
Image forming apparatus with plural types of image forming devices
CANON KK45 citations92
US5534982AJul 9, 1996
Developing apparatus
CANON KK23 citations92
US5519472AMay 21, 1996
Developing apparatus using elastic blade
CANON KK46 citations92
US5311268AMay 10, 1994
Fixing device using fuzzy inference
CANON KK20 citations92
US6714754B2Mar 30, 2004
Developing roller for electrophotography, developing apparatus, apparatus unit and image forming apparatus
CANON KK20 citations91
US6438331B2Aug 20, 2002
Image forming apparatus with cleaning sequence of contact charging members
CANON KK23 citations91
US5734390AMar 31, 1998
Image forming apparatus
CANON KK36 citations91
US6647229B2Nov 11, 2003
Image forming apparatus with flexible charging member for use with spherical toner
CANON KK16 citations84
US6560426B2May 6, 2003
Image forming apparatus
CANON KK18 citations84
US6397032B1May 28, 2002
Image forming apparatus including a developer bearing member having multiple layers
CANON KK17 citations83
US7068956B2Jun 27, 2006
Image forming apparatus and control method for the image forming apparatus
CANON KK9 citations74
US7020419B2Mar 28, 2006
Image formation apparatus, and control method for image formation apparatus
CANON KK7 citations74
US6954595B2Oct 11, 2005
Image forming apparatus featuring a developer carrying member with a controlled operation time and related control method
CANON KK9 citations74
US6611669B2Aug 26, 2003
Image forming apparatus with superposed direct current and alternating current charging voltage
CANON KK10 citations74
US6564027B2May 13, 2003
Image forming apparatus
CANON KK10 citations74
US6376087B1Apr 23, 2002
Developing agent carrier, developing unit, and image forming apparatus
CANON KK13 citations74
US6185387B1Feb 6, 2001
Image forming apparatus
CANON KK14 citations74
US5436709AJul 25, 1995
Fixing device which controls an energizing condition of a heater after fixing operation
CANON KK15 citations74
US6484007B1Nov 19, 2002
Image forming apparatus featuring a conductive developing roller including a mandrel, an elastic layer, an intermediate layer, and a charge-providing layer formed thereon
CANON KK13 citations72
US6389253B1May 14, 2002
Image forming apparatus featuring a regulating member for regulating a number of layers of a developer carried by a developer carrying member
CANON KK10 citations72
US6603935B2Aug 5, 2003
Image forming apparatus featuring application of superimposed DC and AC voltages and DC voltage
CANON KK3 citations63
US7773923B2Aug 10, 2010
Developing apparatus and image forming apparatus
CANON KK4 citations62
US7734205B2Jun 8, 2010
Image forming apparatus
CANON KK3 citations62
US7668490B2Feb 23, 2010
Developing apparatus having developer supplying member in spaced apart relationship with developer carrying member
CANON KK2 citations62
US5587773ADec 24, 1996
Electrophotographic apparatus for performing image exposure and development simultaneously
CANON KK2 citations61
US8019260B2Sep 13, 2011
Image forming apparatus
CANON KK1 citations52
US7962076B2Jun 14, 2011
Image forming apparatus
CANON KK1 citations52
US8489011B2Jul 16, 2013
Image forming apparatus and image forming system
CANON KK0 citations51
US8019258B2Sep 13, 2011
Developing apparatus
CANON KK1 citations51
US7890032B2Feb 15, 2011
Developing apparatus having a scraping member
CANON KK0 citations51
US7840168B2Nov 23, 2010
Developing apparatus
CANON KK1 citations51