Inventor
SERIZAWA YOJI
JP35 patents
⚠️ This page may combine multiple inventors who share the name “SERIZAWA YOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
34 patentsUS6021284AFeb 1, 2000
Image forming apparatus, apparatus for supplying image data to image forming apparatus, and method of interfacing two apparatuses
CANON KK52 citations96
US5051601ASep 24, 1991
Electronic apparatus with light communication
CANON KK53 citations96
US5321486AJun 14, 1994
Image forming apparatus with control based on detected and designated recording medium size
CANON KK64 citations95
US7031012B1Apr 18, 2006
Printing apparatus and its control method, and expendable attached to printing apparatus and having memory
CANON KK31 citations92
US6785478B2Aug 31, 2004
Image formation apparatus and method for controlling the feed of a recording sheet prior to a print command
CANON KK27 citations92
US6496660B2Dec 17, 2002
Image formation apparatus with printer engine control which judges whether recording sheets can be fed
CANON KK26 citations92
US6311024B1Oct 30, 2001
System for detecting the status of an image forming apparatus
CANON KK36 citations92
US6266151B1Jul 24, 2001
Image forming apparatus for image formation on sheet
CANON KK28 citations92
US6130999AOct 10, 2000
Image forming apparatus, apparatus for supplying image data to image forming apparatus, and method of interfacing two apparatuses
CANON KK30 citations92
US5883659AMar 16, 1999
Apparatus using a rotating polygon to form an image, the apparatus determining the polygon rotates stably at a predetermined rotation number
CANON KK25 citations92
US5646717AJul 8, 1997
Image forming apparatus having charging member
CANON KK38 citations92
US5373518ADec 13, 1994
Image forming apparatus and constant current circuit switching device for use therewith
CANON KK29 citations92
US5258779ANov 2, 1993
Image forming apparatus with means for controlling feeding of recording medium
CANON KK32 citations92
US5610646AMar 11, 1997
Image forming apparatus having improved resolution switching capabilities
CANON KK16 citations82
US5412480AMay 2, 1995
Image forming apparatus with fixer temperature control
CANON KK15 citations82
US6816282B2Nov 9, 2004
Image forming apparatus for image formation on sheet
CANON KK8 citations74
US6631248B2Oct 7, 2003
Image forming apparatus with restorable non-volatile memory
CANON KK11 citations74
US5694158ADec 2, 1997
Image forming apparatus with image carrier and sheet feed drive control
CANON KK12 citations74
US5550573AAug 27, 1996
Image forming apparatus using a photosensitive drum and having light quantity adjustment
CANON KK14 citations74
US5512929AApr 30, 1996
Image forming apparatus with fixer temperature control
CANON KK6 citations74
US5504588AApr 2, 1996
Image forming apparatus with optical reflective density of image adjusted according to image resolution discriminated from signal other than image signal
CANON KK10 citations74
US5408304AApr 18, 1995
Image forming apparatus having a pre-paper-feed function
CANON KK10 citations74
US5325376AJun 28, 1994
Communication system for detecting a communication error in information transmitted between a plurality of units and a main control unit
CANON KK9 citations74
US5262801ANov 16, 1993
Image recording apparatus
CANON KK11 citations74
US5517284AMay 14, 1996
Fixing device
CANON KK14 citations73
US5475414ADec 12, 1995
Image forming apparatus having plural printing resolutions
CANON KK10 citations73
US5274402ADec 28, 1993
Image forming apparatus with fixer temperature control
CANON KK9 citations73
US5850245ADec 15, 1998
Page printer
CANON KK16 citations71
US6634817B2Oct 21, 2003
Image forming apparatus
CANON KK6 citations63
US6363227B1Mar 26, 2002
Image forming apparatus and control method for image forming apparatus which detects a status change with respect to an abnormality in the apparatus
CANON KK4 citations63
US5513012AApr 30, 1996
Image forming apparatus having density correction for image formation
CANON KK2 citations63
US6970659B2Nov 29, 2005
Image forming apparatus equipped with detachable process cartridge and control method therefor
CANON KK1 citations52
US7133624B2Nov 7, 2006
Image forming apparatus and program update method in the apparatus
CANON KK0 citations42
US6819907B2Nov 16, 2004
Image forming apparatus and image forming method
CANON KK0 citations42