Inventor
FUJIKAWA HIROYUKI
JP67 patents
⚠️ This page may combine multiple inventors who share the name “FUJIKAWA HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
42 patentsUS9152088B1Oct 6, 2015
Developer replenishing cartridge and developer replenishing method
CANON KK57 citations98
US7396626B2Jul 8, 2008
Toner
CANON KK55 citations98
US7288348B2Oct 30, 2007
Color toner
CANON KK60 citations98
US7279262B2Oct 9, 2007
Magnetic carrier and two-component developer
CANON KK60 citations98
US7147980B2Dec 12, 2006
Toner and image forming apparatus
CANON KK69 citations98
US7939233B2May 10, 2011
Magnetic carrier and two-component developer
CANON KK58 citations97
US7927775B2Apr 19, 2011
Magnetic carrier and two component developer
CANON KK58 citations97
US7858283B2Dec 28, 2010
Magnetic carrier and two-component developer
CANON KK57 citations97
US6670087B2Dec 30, 2003
Toner, image-forming apparatus, process cartridge and image forming method
CANON KK59 citations96
US6235441B1May 22, 2001
Positively chargeable toner, image forming method and image forming apparatus
CANON KK67 citations96
US6203959B1Mar 20, 2001
Toner
CANON KK80 citations96
US5968701AOct 19, 1999
Toner and image forming method
CANON KK79 citations96
US10599060B2Mar 24, 2020
Toner
CANON KK21 citations94
US10564560B2Feb 18, 2020
Toner
CANON KK25 citations94
US10474049B2Nov 12, 2019
Toner
CANON KK32 citations94
US10451986B2Oct 22, 2019
Toner
CANON KK32 citations94
US10423086B2Sep 24, 2019
Toner
CANON KK22 citations94
US10401748B2Sep 3, 2019
Toner
CANON KK35 citations94
US10274851B2Apr 30, 2019
Toner
CANON KK27 citations94
US10197936B2Feb 5, 2019
Toner
CANON KK39 citations94
US10175595B2Jan 8, 2019
Toner
CANON KK41 citations94
US10146146B2Dec 4, 2018
Toner and method of producing toner
CANON KK38 citations94
US10088773B2Oct 2, 2018
Developer supply kit, developer supplying device and image forming apparatus
CANON KK27 citations94
US10082743B2Sep 25, 2018
Toner
CANON KK35 citations94
US10036970B2Jul 31, 2018
Magenta toner
CANON KK36 citations94
US9720349B2Aug 1, 2017
Developer supply kit, developer supplying device and image forming apparatus
CANON KK28 citations94
US9665026B2May 30, 2017
Toner and two-component developer
CANON KK39 citations94
US9651883B2May 16, 2017
Toner
CANON KK41 citations94
US9436112B2Sep 6, 2016
Toner and two-component developer
CANON KK36 citations94
US9417540B2Aug 16, 2016
Toner and two-component developer
CANON KK49 citations94
US9348253B2May 24, 2016
Image-forming method
CANON KK45 citations94
US7442478B2Oct 28, 2008
Toner and method for forming image
CANON KK34 citations93
US7396629B2Jul 8, 2008
Image forming method and image forming apparatus
CANON KK53 citations93
US7320850B2Jan 22, 2008
Magenta toner
CANON KK25 citations93
US7297455B2Nov 20, 2007
Toner, and image forming method
CANON KK40 citations93
US7147981B2Dec 12, 2006
Toner
CANON KK41 citations93
US6653036B1Nov 25, 2003
Magnetic toner and image forming method
CANON KK49 citations93
US6156471ADec 5, 2000
Toner and image forming method
CANON KK51 citations93
US6120961ASep 19, 2000
Toner for developing electrostatic images
CANON KK35 citations93
US6020102AFeb 1, 2000
Positive-chargeable toner, image forming method and apparatus unit
CANON KK34 citations93
US7452647B2Nov 18, 2008
Color toner
CANON KK28 citations92
US10955765B2Mar 23, 2021
Magnetic carrier and two-component developer
CANON KK10 citations86
FUJIKAWA HIROYUKI
4 patentsSHIOTARI YOSHIAKI
1 patentHOTTA YOJIRO
1 patentBABA YOSHINOBU
1 patentSUMITOMO ELECTRIC INDUSTRIES
1 patentShowing the top 50 of 67 patents by PatentIndex Score.