Inventor
YOSHIZAWA RYUICHI
JP25 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIZAWA RYUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
19 patentsUS6754454B1Jun 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
US6381419B1Apr 30, 2002
Image forming apparatus with developer density and developer remaining amount detection features
CANON KK25 citations92
US6301452B1Oct 9, 2001
Image forming apparatus
CANON KK51 citations92
US6044234AMar 28, 2000
Image processing apparatus and method for controlling a detection timing of a density sensor
CANON KK26 citations92
US7916318B2Mar 29, 2011
Image forming system and image forming method
CANON KK9 citations84
US7110684B2Sep 19, 2006
Cartridge for replenishing developer including a memory device and a control system featuring the cartridge
CANON KK14 citations84
US7190916B2Mar 13, 2007
Image forming apparatus
CANON KK8 citations73
US5809365ASep 15, 1998
Image forming apparatus using intermediate transfer member
CANON KK15 citations73
US10254699B2Apr 9, 2019
Image forming apparatus to correct timing of image formation
CANON KK2 citations72
US6718144B2Apr 6, 2004
Image forming apparatus and process unit mountable to image forming apparatus
CANON KK2 citations63
US8000616B2Aug 16, 2011
Image forming apparatus
CANON KK2 citations62
US7802791B2Sep 28, 2010
Image forming system and control method therefor, and control unit for image forming apparatus
CANON KK2 citations62
US7729005B2Jun 1, 2010
Image forming apparatus and its control method
CANON KK5 citations62
US7551306B2Jun 23, 2009
Image forming apparatus and method for controlling the image forming apparatus
CANON KK2 citations62
US7251424B2Jul 31, 2007
Method and apparatus for timing image formation in an image-forming apparatus
CANON KK2 citations62
US9291976B2Mar 22, 2016
Image forming apparatus having a conveying path, option apparatus and image forming system
CANON KK2 citations55
US7398030B2Jul 8, 2008
Image forming apparatus and output control method of the same
CANON KK0 citations52
US7146118B2Dec 5, 2006
Image forming apparatus and method
CANON KK0 citations52
YOSHIZAWA RYUICHI
4 patentsUS8060003B2Nov 15, 2011
Image forming apparatus wherein a setting unit sets an interval of image formation according to a size of a recording medium
YOSHIZAWA RYUICHI21 citations91
US8577277B2Nov 5, 2013
Image forming apparatus
YOSHIZAWA RYUICHI12 citations82
US8687988B2Apr 1, 2014
Image forming apparatus for retrying feed of transfer material
YOSHIZAWA RYUICHI0 citations51
US8544844B2Oct 1, 2013
Image forming system and control method therefor, and control unit for image forming apparatus
YOSHIZAWA RYUICHI0 citations51