Inventor
OKUBO NOBUYUKI
JP27 patents
⚠️ This page may combine multiple inventors who share the name “OKUBO NOBUYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
23 patentsUS5364720ANov 15, 1994
Magnetic developer for developing electrostatic images
CANON KK28 citations93
US7745089B2Jun 29, 2010
Process for producing toner, and toner
CANON KK18 citations92
US7351509B2Apr 1, 2008
Toner
CANON KK34 citations92
US7288354B2Oct 30, 2007
Toner
CANON KK42 citations92
US7273686B2Sep 25, 2007
Toner
CANON KK49 citations92
US6458499B1Oct 1, 2002
Toner having hydrocarbon wax with specific ester value and hydroxyl value
CANON KK23 citations92
US6007957ADec 28, 1999
Magnetic toner, image forming method and process cartridge
CANON KK27 citations92
US5942366AAug 24, 1999
Image forming method employing toner containing higher and lower molecular weight polymer components
CANON KK18 citations92
US5750302AMay 12, 1998
Magnetic toner for developing electrostatic image, image forming process, and process cartridge
CANON KK32 citations92
US5744276AApr 28, 1998
Toner for developing electrostatic image containing higher and lower molecular weight polymer components
CANON KK34 citations92
US5489498AFeb 6, 1996
Toner for developing electrostatic image and method of manufacturing resin composition
CANON KK36 citations92
US7306889B2Dec 11, 2007
Process for producing toner, and toner
CANON KK11 citations84
US6673506B2Jan 6, 2004
Toner production process
CANON KK17 citations84
US6589701B2Jul 8, 2003
Dry toner, image forming method and process cartridge
CANON KK20 citations84
US6426169B1Jul 30, 2002
Toner containing azo iron compound
CANON KK17 citations84
US5858593AJan 12, 1999
Magnetic toner, apparatus unit and image forming method
CANON KK19 citations84
US5962176AOct 5, 1999
Toner for developing electrostatic image, image forming method and process-cartridge
CANON KK18 citations83
US6365314B1Apr 2, 2002
Toner for developing electrostatic image, image forming method and process cartridge
CANON KK6 citations74
US6090515AJul 18, 2000
Toner for developing electrostatic image, image forming method and process cartridge
CANON KK11 citations74
US5854365ADec 29, 1998
Toner for developing electrostatic image and method of manufacturing resin composition
CANON KK9 citations74
US6630275B2Oct 7, 2003
Magnetic toner and process cartridge
CANON KK12 citations73
US5840459ANov 24, 1998
Toner for developing electrostatic images and process for production thereof
CANON KK12 citations73
US6810217B2Oct 26, 2004
Process cartridge
CANON KK6 citations62