Inventor
YOKOYAMA KATSUNORI
JP38 patents
⚠️ This page may combine multiple inventors who share the name “YOKOYAMA KATSUNORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
29 patentsUS6029032AFeb 22, 2000
Process cartridge and electrophotographic image forming apparatus
CANON KK169 citations99
US6006058ADec 21, 1999
Process cartridge and electrophotographic image forming apparatus having an improved driving system
CANON KK154 citations99
US6330409B1Dec 11, 2001
Process cartridge and electrophotographic image forming apparatus
CANON KK107 citations98
US6246849B1Jun 12, 2001
Bearing, process cartridge and electrophotographic image forming apparatus
CANON KK119 citations98
US6169866B1Jan 2, 2001
Process cartridge and electrophotographic image forming apparatus
CANON KK120 citations98
US6097908AAug 1, 2000
Electrical connector, process cartridge and electrophotographic image forming apparatus
CANON KK120 citations98
US6016413AJan 18, 2000
Assembling method of process cartridge, assembling method and process cartridge
CANON KK114 citations98
US5966568AOct 12, 1999
Process cartridge, assembling method of process cartridge, assembling method of toner container and electrophotographic image forming apparatus
CANON KK115 citations98
US5937239AAug 10, 1999
Process cartridge and electrophotographic image forming apparatus
CANON KK137 citations98
US5937242AAug 10, 1999
Process cartridge and electrophotographic image forming apparatus
CANON KK90 citations98
US6118960ASep 12, 2000
End cover, process cartridge and assembling method for process cartridge
CANON KK84 citations96
US6101354AAug 8, 2000
Electrophotographic image forming apparatus to which a process cartridge is detachably mountable and such a process cartridge whose developing member is supported at a position which deviates from a developing position
CANON KK86 citations96
US6236821B1May 22, 2001
Process cartridge having a coupling pin and a coupling pin comprising first, second, and third shaft portion
CANON KK37 citations93
US6144398ANov 7, 2000
Process cartridge and electrophotographic image forming apparatus
CANON KK48 citations93
US6064841AMay 16, 2000
Power supply for a charging apparatus having a contact charger for charging an object to be charged
CANON KK26 citations93
US6044237AMar 28, 2000
Developing apparatus
CANON KK23 citations93
US7440724B2Oct 21, 2008
Cleaning member, cleaning unit, process cartridge, and electrophotographic image-forming apparatus
CANON KK11 citations84
US5768669AJun 16, 1998
Developing device having magnet roll fixed by welding and method of assembling the same
CANON KK12 citations74
US5765286AJun 16, 1998
Reconditioning method for developing roller
CANON KK15 citations74
US7463854B2Dec 9, 2008
Developing apparatus, processing cartridge, and image forming apparatus
CANON KK7 citations73
US7528859B2May 5, 2009
Electrophotographic image forming apparatus
CANON KK3 citations63
US7366451B2Apr 29, 2008
Developer conveyance screw
CANON KK2 citations63
US8019258B2Sep 13, 2011
Developing apparatus
CANON KK1 citations51
US7840168B2Nov 23, 2010
Developing apparatus
CANON KK1 citations51
US9915913B2Mar 13, 2018
Cover for image forming apparatus
CANON KK1 citations50
US10054181B2Aug 21, 2018
Damping component and damping structure
CANON KK0 citations49
US7929009B2Apr 19, 2011
Electrophotographic photosensitive drum, electrophotographic image forming apparatus, and method of manufacturing electrophotographic photosensitive drum
CANON KK0 citations42
US9958026B2May 1, 2018
Damping structure
CANON KK0 citations39
US9863496B2Jan 9, 2018
Damping component and structure including the same
CANON KK0 citations39
TOKYO SHIBAURA ELECTRIC CO
4 patentsUS4510412AApr 9, 1985
Piezoelectric displacing device
TOKYO SHIBAURA ELECTRIC CO21 citations82
US4554586ANov 19, 1985
Solid state image sensing device
TOKYO SHIBAURA ELECTRIC CO15 citations73
US4449919AMay 22, 1984
Gas combustion apparatus capable of detecting environmental oxygen deficiency
TOKYO SHIBAURA ELECTRIC CO16 citations73
US4321155AMar 23, 1982
Piezoelectric oxide material
TOKYO SHIBAURA ELECTRIC CO7 citations71