Inventor
HIROSHIMA KOICHI
JP32 patents
⚠️ This page may combine multiple inventors who share the name “HIROSHIMA KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
31 patentsUS5450180ASep 12, 1995
Image forming apparatus having constant current and voltage control in the charging and transfer regions
CANON KK68 citations96
US5179397AJan 12, 1993
Image forming apparatus with constant voltage and constant current control
CANON KK65 citations96
US5198863AMar 30, 1993
Image forming apparatus
CANON KK26 citations93
US5172173ADec 15, 1992
Image forming device and transfer belt having contact-type electricity feeding means
CANON KK54 citations93
US5043745AAug 27, 1991
Light intensity control apparatus
CANON KK41 citations93
US5010370AApr 23, 1991
Transfer apparatus and image bearing apparatus using same having transfer means for contacting a backside of a transfer material
CANON KK30 citations93
US6754454B1Jun 22, 2004
Image forming apparatus capable of discriminating a service life of detachably mounted process unit
CANON KK16 citations92
US6704521B2Mar 9, 2004
Image forming apparatus and image forming method
CANON KK28 citations92
US6633734B2Oct 14, 2003
Image forming apparatus having density detecting means
CANON KK45 citations92
US6381419B1Apr 30, 2002
Image forming apparatus with developer density and developer remaining amount detection features
CANON KK25 citations92
US5999763ADec 7, 1999
Simultaneous cleaning of residual toner and toner image formation
CANON KK20 citations92
US5974281AOct 26, 1999
Image forming apparatus using intermediate transfer member
CANON KK22 citations92
US5809373ASep 15, 1998
Image forming apparatus which back-transfers residual toner from an intermediate transfer member to a photosensitive drum
CANON KK30 citations92
US5732310AMar 24, 1998
Image forming apparatus having cleaning device for cleaning intermediate transfer member
CANON KK42 citations92
US5701568ADec 23, 1997
Image forming apparatus having dielectric constant relationship between image bearing member, intermediate transfer member and contact transfer device
CANON KK33 citations92
US5646717AJul 8, 1997
Image forming apparatus having charging member
CANON KK38 citations92
US5455603AOct 3, 1995
Image forming apparatus with feeder control based on pixel conversion status
CANON KK26 citations92
US5285245AFeb 8, 1994
Electrostatic transfer type image forming apparatus with recording material guide for changing direction of recording material separation from image transfer position
CANON KK29 citations92
US5264902ANov 23, 1993
Image forming device
CANON KK40 citations92
US5223900AJun 29, 1993
Transfer roller with a resistance determined in accordance with its peripheral speed
CANON KK30 citations92
US5159393AOct 27, 1992
Image forming apparatus having transfer device and image bearing member traveling at different speeds
CANON KK37 citations92
US5034777AJul 23, 1991
Transferring device having charging device with double oxide and voltage control
CANON KK40 citations92
US6131010AOct 10, 2000
Rotatable member having elastic layer and fixing apparatus having said rotatable member
CANON KK39 citations91
US7110684B2Sep 19, 2006
Cartridge for replenishing developer including a memory device and a control system featuring the cartridge
CANON KK14 citations84
US5412480AMay 2, 1995
Image forming apparatus with fixer temperature control
CANON KK15 citations82
US5694158ADec 2, 1997
Image forming apparatus with image carrier and sheet feed drive control
CANON KK12 citations74
US5572306ANov 5, 1996
Image forming apparatus capable of setting fixing temperature corresponding to temperature rising state of heating member
CANON KK13 citations74
US5512929AApr 30, 1996
Image forming apparatus with fixer temperature control
CANON KK6 citations74
US5274402ADec 28, 1993
Image forming apparatus with fixer temperature control
CANON KK9 citations73
US9563159B2Feb 7, 2017
Image heating apparatus and rotatable member for use with the image heating apparatus
CANON KK5 citations72
US6718144B2Apr 6, 2004
Image forming apparatus and process unit mountable to image forming apparatus
CANON KK2 citations63