Inventor
SHIRAI HIROYUKI
JP20 patents
⚠️ This page may combine multiple inventors who share the name “SHIRAI HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
16 patentsUS5470635ANov 28, 1995
Blade member having a flat-surface side and an angled-surface side
CANON KK126 citations99
US5294960AMar 15, 1994
Detachable two-frame process cartridge for an image forming apparatus
CANON KK144 citations99
US5828928AOct 27, 1998
Process cartridge mountable in an image forming system and a method for assembling a cleaning device
CANON KK114 citations98
US5623328AApr 22, 1997
Process cartridge and image forming system on which process cartridge is mountable
CANON KK146 citations98
US5608509AMar 4, 1997
Process cartridge with blade member having a flat-surface side and an angled-surface side
CANON KK109 citations98
US6118961ASep 12, 2000
Detachable two-frame process cartridge for an image forming apparatus
CANON KK46 citations96
US5987278ANov 16, 1999
Process cartridge and image forming apparatus usable therewith
CANON KK46 citations96
US5907749AMay 25, 1999
Process cartridge and image forming apparatus usable therewith
CANON KK65 citations96
US5682579AOct 28, 1997
Detachable two-frame process cartridge for an image forming apparatus
CANON KK42 citations96
US5208634AMay 4, 1993
Process cartridge detachably mountable to image forming apparatus featuring an injectable sealing member
CANON KK93 citations96
US5134960AAug 4, 1992
Toner seal for developing unit in process cartridge
CANON KK84 citations96
US6075956AJun 13, 2000
Process cartridge having shiftable cover and guide member for directing airflow
CANON KK41 citations95
US5878304AMar 2, 1999
Process cartridge having shiftable cover with inner protrusion
CANON KK63 citations95
US5383011AJan 17, 1995
Cleaning device, process cartridge incorporating the cleaning device, and image forming apparatus using the cleaning device
CANON KK33 citations92
US6097911AAug 1, 2000
Process cartridge having shiftable cover with specific spacing between cover and cartridge
CANON KK14 citations81
USD355208SFeb 7, 1995
Developing device for copying machine
CANON KK3 citations63