Inventor
KAWAKAMI YOSHIHIRO
JP37 patents
⚠️ This page may combine multiple inventors who share the name “KAWAKAMI YOSHIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH CO LTD
8 patentsUS8019254B2Sep 13, 2011
Toner conveying device, process cartridge, and image forming apparatus
RICOH CO LTD32 citations93
US7979013B2Jul 12, 2011
Developing device of image forming apparatus
RICOH CO LTD13 citations84
US7965957B2Jun 21, 2011
Developing device and image forming apparatus that uses this developing device
RICOH CO LTD13 citations84
US7965958B2Jun 21, 2011
Developing device, process cartridge and image forming apparatus
RICOH CO LTD7 citations84
US7945203B2May 17, 2011
Waste-toner collecting device, process cartridge, and image forming apparatus
RICOH CO LTD13 citations84
US7917077B2Mar 29, 2011
Waste-toner housing device, and image forming apparatus
RICOH CO LTD7 citations84
US7890044B2Feb 15, 2011
Powder conveyance device, toner conveyance device, process cartridge and image forming apparatus
RICOH CO LTD13 citations84
US7873302B2Jan 18, 2011
Cleaning device and image forming apparatus
RICOH CO LTD7 citations84
RICOH KK
8 patentsUS7424263B2Sep 9, 2008
Toner recovery belt conveyor, process cartridge, and image forming apparatus using the same
RICOH KK23 citations93
USD597129SJul 28, 2009
Process cartridge for image forming apparatus
RICOH KK15 citations84
USD590012SApr 7, 2009
Process cartridge for image forming apparatus
RICOH KK10 citations84
USD580968SNov 18, 2008
Process cartridge for image forming apparatus
RICOH KK9 citations84
USD603450SNov 3, 2009
Process cartridge for image forming apparatus
RICOH KK6 citations74
USD590011SApr 7, 2009
Process cartridge for image forming apparatus
RICOH KK7 citations74
US7706724B2Apr 27, 2010
Charging-roller bearing member, process cartridge, and image forming apparatus
RICOH KK6 citations63
US7623821B2Nov 24, 2009
Conveyor device, process cartridge, image forming apparatus, and method of forming image
RICOH KK5 citations63
KAWAKAMI YOSHIHIRO
4 patentsUS8275285B2Sep 25, 2012
Process cartridge and image forming apparatus
KAWAKAMI YOSHIHIRO15 citations83
US8320792B2Nov 27, 2012
Cleaning device, process cartridge, and image forming apparatus
KAWAKAMI YOSHIHIRO6 citations72
US8948639B2Feb 3, 2015
Fixing device with mechanism capable of detecting pressure exerted between opposed components and image forming apparatus incorporating same
KAWAKAMI YOSHIHIRO2 citations62
US8591860B2Nov 26, 2013
Method for manufacturing a lithium complex metal oxide
KAWAKAMI YOSHIHIRO2 citations58
KUBOTA TOMOHIRO
3 patentsUS8260186B2Sep 4, 2012
Toner cartridge with refillable fresh and residual toner chambers, process cartridge, and method of making toner cartridge reusable
KUBOTA TOMOHIRO6 citations73
US8442414B2May 14, 2013
Seal member, developing device, process cartridge, and image forming apparatus
KUBOTA TOMOHIRO3 citations63
US8081897B2Dec 20, 2011
Seal member, developing device, process cartridge, and image forming apparatus
KUBOTA TOMOHIRO2 citations63
YOSHIDA TOMOFUMI
3 patentsUS8208832B2Jun 26, 2012
Toner-collecting device and image forming apparatus
YOSHIDA TOMOFUMI4 citations62
US8135313B2Mar 13, 2012
Powder transport screw, and development device, process unit and image-forming apparatus comprising this powder transport screw
YOSHIDA TOMOFUMI4 citations62
US8103195B2Jan 24, 2012
Toner agitating unit, toner hopper, process cartridge, and image forming apparatus
YOSHIDA TOMOFUMI1 citations52