Inventor
MATSUGUMA MINORU
JP16 patents
⚠️ This page may combine multiple inventors who share the name “MATSUGUMA MINORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
13 patentsUS5682576AOct 28, 1997
Fixing device
CANON KK81 citations96
US6654568B2Nov 25, 2003
Image forming apparatus, image bearing member life detecting method, and process cartridge detachably attachable to image forming apparatus
CANON KK29 citations92
US6493534B2Dec 10, 2002
Sheet conveying apparatus and image forming apparatus
CANON KK28 citations92
US5521683AMay 28, 1996
Image forming apparatus using constant voltage or constant current AC signal applied to developer bearing member, and control function in accordance with detected voltage or current of developer bearing member
CANON KK33 citations92
US7120376B2Oct 10, 2006
Image forming apparatus featuring a four-step image bearing member controller
CANON KK17 citations83
US6771924B2Aug 3, 2004
Image forming apparatus having different modes for preventing defective cleaning
CANON KK18 citations83
US6549733B2Apr 15, 2003
Image forming apparatus, image bearing member life detecting method, and process cartridge detachably attachable to image forming apparatus
CANON KK13 citations83
US6961527B2Nov 1, 2005
Method of detecting life of image bearing member, image forming apparatus and cartridge
CANON KK5 citations74
US6704524B2Mar 9, 2004
Method of detecting life of image bearing member, image forming apparatus and cartridge
CANON KK9 citations74
US6577823B2Jun 10, 2003
Method of detecting life of image bearing member, image forming apparatus and cartridge
CANON KK9 citations74
US6427054B1Jul 30, 2002
Image forming apparatus indicating the residue of toner and the deficiency of toner
CANON KK11 citations74
US7627269B2Dec 1, 2009
Image forming apparatus with charging member cleaning capabilities
CANON KK2 citations63
US7254347B2Aug 7, 2007
Electrophotographic image forming apparatus and unit
CANON KK4 citations63