P

Inventor

WATANABE KAZUHITO

JP43 patents
⚠️ This page may combine multiple inventors who share the name “WATANABE KAZUHITO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RICOH KK

21 patents
US6660443B2Dec 9, 2003

Dry toner and image forming method using same

RICOH KK138 citations99
US6363229B1Mar 26, 2002

Full-color toner image fixing method and apparatus

RICOH KK174 citations99
US6756175B2Jun 29, 2004

Method for fixing toner

RICOH KK90 citations98
US6566026B2May 20, 2003

Toner for developing electrostatic latent image, toner container containing the toner, and image forming method and apparatus using the toner

RICOH KK75 citations98
US6403275B1Jun 11, 2002

Electrophotographic toner, and image forming method and apparatus using the toner

RICOH KK130 citations98
US7103301B2Sep 5, 2006

Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be charged

RICOH KK47 citations96
US7005223B2Feb 28, 2006

Toner composition and method for manufacturing the toner composition

RICOH KK45 citations96
US6835519B2Dec 28, 2004

Dry toner and image forming method using same

RICOH KK33 citations93
US5597673AJan 28, 1997

Toner for developing electrostatic latent image

RICOH KK23 citations93
US5314777AMay 24, 1994

Negatively chargeable toner for developing latent electrostatic images

RICOH KK25 citations93
US7493061B2Feb 17, 2009

Process cartridge including at least one replaceable member and image forming apparatus

RICOH KK22 citations92
US7383013B2Jun 3, 2008

Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be charged

RICOH KK18 citations92
US5747210AMay 5, 1998

Electrostatic image developing toner and method for producing the toner

RICOH KK57 citations92
US7419756B2Sep 2, 2008

Dry toner, method for manufacturing the same, image forming apparatus, and image forming method

RICOH KK13 citations84
US7122286B2Oct 17, 2006

Toner for development of electrostatic latent images, method of forming images, image formation apparatus, toner container containing the toner therein, and image formation apparatus equipped with the toner container

RICOH KK13 citations84
US7058335B2Jun 6, 2006

Process cartridge and image forming apparatus with toner fed cleaning mode

RICOH KK12 citations84
US7251438B2Jul 31, 2007

Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be charged

RICOH KK8 citations74
US7158730B2Jan 2, 2007

Image forming apparatus, process cartridge, developing unit, and image forming method

RICOH KK6 citations73
US7294443B2Nov 13, 2007

Toner composition and method for manufacturing the toner composition

RICOH KK4 citations63
US6740461B2May 25, 2004

Carrier and two-component developer for electrophotography

RICOH KK6 citations63
US7522850B2Apr 21, 2009

Image forming apparatus, process cartridge, developing unit, and image forming method

RICOH KK4 citations62

ANELVA CORP

6 patents

CANON KK

3 patents

FUJITSU LTD

2 patents

NOF CORP

2 patents

JAPAN DISPLAY INC

2 patents

CANON ANELVA CORPOREATION

1 patent

KURODA TOSHIYA

1 patent

CANON ANELVA CORP

1 patent

FUTABA DENSHI KOGYO KK

1 patent

TOYO KANETSU SOLUTIONS K K

1 patent

WATANABE KAZUHITO

1 patent

AOKI KAZUNARI

1 patent