P

Inventor

IWATA NAOKI

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

RICOH KK

31 patents
US5424814AJun 13, 1995

Developing device with microfields formed on developer carrier

RICOH KK78 citations96
US5339141AAug 16, 1994

Developing device with a developer carrier capable of forming numerous microfields thereon

RICOH KK97 citations96
US5311263AMay 10, 1994

Developing apparatus for image forming equipment using developer carrier for forming microfields

RICOH KK56 citations96
US5245391ASep 14, 1993

Developing device having surface microfields for an image forming apparatus

RICOH KK64 citations96
US5502552AMar 26, 1996

Developing device for an image forming apparatus

RICOH KK74 citations95
US5812917ASep 22, 1998

Developing apparatus

RICOH KK49 citations93
US7352987B2Apr 1, 2008

Fixing device and image forming apparatus for holding a recording medium by electrostatic force

RICOH KK20 citations92
US5869213AFeb 9, 1999

Multicolor image forming method preventing contamination of toner on an image carrier with toner on a developing carrier

RICOH KK23 citations92
US5809386ASep 15, 1998

Developing device for an image forming apparatus

RICOH KK40 citations92
US5741616AApr 21, 1998

Method of developing latent electrostatic images and developer-bearing member

RICOH KK51 citations92
US5674408AOct 7, 1997

Developer carrier capable of forming microfields thereon and method of producing the same

RICOH KK22 citations92
US5541029AJul 30, 1996

Multicolor image forming method preventing mixing of colors

RICOH KK38 citations92
US5474869ADec 12, 1995

Toner and method of developing

RICOH KK43 citations92
US5451713ASep 19, 1995

Developing apparatus using a developer carrier capable of forming microfields

RICOH KK30 citations92
US5450172ASep 12, 1995

Nondestructive multicolor image forming apparatus

RICOH KK20 citations92
US5315061AMay 24, 1994

Developing apparatus using a developer carrier capable of forming microfields

RICOH KK25 citations92
US5286918AFeb 15, 1994

Developing apparatus using a developer carrier capable of forming microfields on the surface thereof

RICOH KK36 citations92
US5239344AAug 24, 1993

Developing roller having insulating and conductive areas

RICOH KK44 citations92
US5220383AJun 15, 1993

Developing device for an image forming apparatus having a large number of microfields formed on a developer carrier

RICOH KK50 citations92
US5172169ADec 15, 1992

Developer carrier of a developing device and a method of producing the same

RICOH KK37 citations92
US7590376B2Sep 15, 2009

Fixing method, a fixing apparatus, an image formation method, and an image formation apparatus

RICOH KK11 citations84
US7356298B2Apr 8, 2008

Image fixing apparatus using pulsating power for heating

RICOH KK9 citations84
US7046949B2May 16, 2006

Image fixing apparatus using pulsating power for heating

RICOH KK13 citations84
US7003251B2Feb 21, 2006

Image forming method having transfer temperature difference and apparatus for the same

RICOH KK12 citations84
US6983117B2Jan 3, 2006

Image forming apparatus configured for double sided printing

RICOH KK12 citations84
US5557392ASep 17, 1996

Multicolor image forming apparatus with pulse voltage and DC voltage applied to a developing unit

RICOH KK17 citations74
US5241357AAug 31, 1993

Color image forming equipment with two developers and a pulse bias

RICOH KK18 citations74
US7309553B2Dec 18, 2007

Oilless toner

RICOH KK3 citations63
US7295795B2Nov 13, 2007

Image forming apparatus and an impurity collecting device associated with registration rollers

RICOH KK4 citations63
US7197269B2Mar 27, 2007

Method, system and apparatus for transferring toner images to both sides of a recording medium

RICOH KK5 citations63
US6941099B2Sep 6, 2005

Developing device having plurality of biased magnetic sleeves

RICOH KK2 citations63

TOYOTA MOTOR CO LTD

4 patents

DENSO CORP

3 patents

SONY GROUP CORP

2 patents

HAMAMATSU PHOTONICS KK

2 patents

ADVICS CO LTD

1 patent