Inventor
KOYANAGI MASATO
JP16 patents
⚠️ This page may combine multiple inventors who share the name “KOYANAGI MASATO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
15 patentsUS7277659B2Oct 2, 2007
Image forming apparatus and seal retractor
CANON KK27 citations92
US6909869B2Jun 21, 2005
Developer regulating member and developing apparatus
CANON KK24 citations91
US7593670B2Sep 22, 2009
Charging device including a contact charging member with silica thereon, process cartridge including a contact charging member, and image forming apparatus including such charging member
CANON KK15 citations83
US7209690B2Apr 24, 2007
Developing apparatus
CANON KK13 citations83
US7457554B2Nov 25, 2008
Image forming apparatus wherein an image forming region and a non-image forming region are charged with different potentials
CANON KK8 citations73
US6952551B2Oct 4, 2005
Developer carrying member and developing apparatus
CANON KK9 citations73
US9256156B2Feb 9, 2016
Developing assembly, process cartridge, and image-forming apparatus
CANON KK3 citations72
US9213258B2Dec 15, 2015
Developing assembly, process cartridge, and image-forming apparatus
CANON KK4 citations72
US9098010B2Aug 4, 2015
Development device, process cartridge, and image forming apparatus
CANON KK2 citations62
US7711279B2May 4, 2010
Image forming apparatus with a predetermined potential difference between regions of an image bearing member
CANON KK4 citations62
US7239832B2Jul 3, 2007
Developer regulation member and developing apparatus
CANON KK4 citations62
US7123849B2Oct 17, 2006
Image forming apparatus, image forming apparatus control method, cartridge, and storage medium
CANON KK6 citations62
US6983120B2Jan 3, 2006
Cleaning blade, cleaning device, process cartridge, and image forming apparatus using them
CANON KK5 citations62
US9250564B2Feb 2, 2016
Developing device and image forming apparatus
CANON KK0 citations40
US9098014B2Aug 4, 2015
Developing device and image forming apparatus
CANON KK0 citations40