Inventor
OBA KATSUHIKO
JP25 patents
⚠️ This page may combine multiple inventors who share the name “OBA KATSUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
17 patentsUS7756441B2Jul 13, 2010
Process cartridge and electrophotographic image forming apparatus
CANON KK38 citations96
US9310762B2Apr 12, 2016
Process cartridge and electrophotographic image forming apparatus
CANON KK11 citations92
US8805237B2Aug 12, 2014
Process cartridge and electrophotographic image forming apparatus
CANON KK21 citations92
US8385775B2Feb 26, 2013
Process cartridge and electrophotographic image forming apparatus
CANON KK23 citations92
US7107000B2Sep 12, 2006
Image heating apparatus having flexible sleeve
CANON KK16 citations84
US7010256B2Mar 7, 2006
Image heating apparatus having recording medium conveying nip nonuniform in pressure distribution
CANON KK15 citations83
US7283776B2Oct 16, 2007
Image forming apparatus
CANON KK9 citations74
US9575437B2Feb 21, 2017
Image forming apparatus having widthwise adjustment of endless belt
CANON KK3 citations73
US6543758B2Apr 8, 2003
Image forming apparatus
CANON KK11 citations69
US12271136B2Apr 8, 2025
Image forming apparatus including a display unit for displaying information about a procedure for replenishing developer
CANON KK1 citations64
US11796947B2Oct 24, 2023
Image forming apparatus including a display unit for displaying information about a procedure for replenishing developer
CANON KK1 citations62
US11754946B2Sep 12, 2023
Image forming apparatus
CANON KK0 citations62
US11474452B2Oct 18, 2022
Image forming apparatus including an attachment portion to which to attach a supply container for supplying a developer
CANON KK0 citations62
US11454912B2Sep 27, 2022
Image forming apparatus including a display unit for displaying information about a procedure for replenishing developer
CANON KK1 citations62
US12147190B2Nov 19, 2024
Image forming apparatus
CANON KK0 citations61
US11586143B2Feb 21, 2023
Image forming apparatus
CANON KK0 citations61
US9310758B2Apr 12, 2016
Image forming apparatus
CANON KK2 citations57
KANNO KAZUHIKO
7 patentsUS8059988B2Nov 15, 2011
Process cartridge and electrophotographic image forming apparatus
KANNO KAZUHIKO43 citations94
US8494410B2Jul 23, 2013
Process cartridge and electrophotographic image forming apparatus
KANNO KAZUHIKO21 citations92
US8437661B2May 7, 2013
Process cartridge and electrophotographic image forming apparatus
KANNO KAZUHIKO21 citations92
US8170445B2May 1, 2012
Process cartridge and electrophotographic image forming apparatus
KANNO KAZUHIKO23 citations92
US8170444B2May 1, 2012
Process cartridge and electrophotographic image forming apparatus
KANNO KAZUHIKO27 citations92
US8155557B2Apr 10, 2012
Process cartridge and electrophotographic image forming apparatus
KANNO KAZUHIKO27 citations92
US8090292B2Jan 3, 2012
Process cartridge and electrophotographic image forming apparatus
KANNO KAZUHIKO26 citations92