P

Inventor

YANAGAWA NOBUYUKI

JP65 patents
⚠️ This page may combine multiple inventors who share the name “YANAGAWA NOBUYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RICOH KK

49 patents
US6402317B2Jun 11, 2002

Ink-jet recording of images with improved clarity of images

RICOH KK136 citations99
US6674982B2Jan 6, 2004

Image forming apparatus including components mounted and/or dismounted in selected order

RICOH KK81 citations98
US6439713B1Aug 27, 2002

Powder composition and process of forming liquid ink image using same

RICOH KK97 citations98
US6623816B1Sep 23, 2003

Recording method and apparatus with an intermediate transfer medium based on transfer-type recording mechanism

RICOH KK43 citations96
US6257716B1Jul 10, 2001

Ink-jet recording of images with improved clarity of images

RICOH KK79 citations96
US6215974B1Apr 10, 2001

Image forming apparatus with a toner mounter having a vibration apparatus

RICOH KK69 citations96
US6157797ADec 5, 2000

Image forming apparatus with integrated rotatable image carrier and writing device and method of assembling the same

RICOH KK54 citations96
US7082274B2Jul 25, 2006

Image forming apparatus with components removable in preselected direction and order

RICOH KK20 citations93
US6832061B2Dec 14, 2004

Image forming apparatus with selectively lockable intermediate members for supporting developing and forming devices of same

RICOH KK29 citations93
US6396528B1May 28, 2002

Image forming system, intermediate transfer medium and method with temporary attachment features

RICOH KK51 citations93
US6332066B1Dec 18, 2001

Multicolor image forming method and apparatus using an intermediate transfer belt and apparatus having plural developing units for the same

RICOH KK27 citations93
US4406535ASep 27, 1983

Development apparatus

RICOH KK40 citations93
US4403851ASep 13, 1983

Electrostatic copying machine comprising improved arrangement of operating units

RICOH KK35 citations93
US4364656ADec 21, 1982

Electrophotographic copying machine

RICOH KK34 citations93
US4204668AMay 27, 1980

Paper feeding apparatus

RICOH KK46 citations93
US7070269B2Jul 4, 2006

Recording method and apparatus with an intermediate transfer medium based on transfer-type recording mechanism

RICOH KK35 citations92
US6837578B2Jan 4, 2005

Recording method and apparatus with an intermediate transfer medium based on transfer-type recording mechanism

RICOH KK26 citations92
US6292641B1Sep 18, 2001

Image forming apparatus selectively operating one of a plurality of developing units and a method for controlling a switching operation for the developing units

RICOH KK46 citations92
US6222566B1Apr 24, 2001

Image formation apparatus and method thereof

RICOH KK38 citations92
US4615607AOct 7, 1986

Dual-color copier

RICOH KK27 citations92
US4359670ANov 16, 1982

Lamp intensity control apparatus comprising preset means

RICOH KK50 citations92
US4161644AJul 17, 1979

Electrophotographic apparatus comprising improved thermal fixing means

RICOH KK33 citations92
US6256461B1Jul 3, 2001

Image forming apparatus with an intermediate transfer body including reference markers for controlling the same

RICOH KK46 citations91
US4451139AMay 29, 1984

Cleaning apparatus for photoconductive element

RICOH KK37 citations91
US4402103ASep 6, 1983

Cleaning unit for copying machine

RICOH KK28 citations89
US6920291B2Jul 19, 2005

Belt apparatus used in image formation, and an image formation apparatus

RICOH KK12 citations84
US6842598B2Jan 11, 2005

Image forming apparatus having a plurality of developing means around an image carrier

RICOH KK12 citations84
US6263178B1Jul 17, 2001

Method of applying a bias voltage for image development and method of switching the bias voltage in an image forming apparatus

RICOH KK19 citations84
US4449810AMay 22, 1984

Electrophotographic copying machine with means for mixing and removing toner and an integral exposure plate

RICOH KK22 citations82
US4372547AFeb 8, 1983

Sheet feed apparatus

RICOH KK21 citations82
US4183652AJan 15, 1980

Photoconductor sheet clamp apparatus

RICOH KK21 citations82
US4155545AMay 22, 1979

Sheet feed apparatus for electrostatic copying machine or the like

RICOH KK21 citations82
US4074217AFeb 14, 1978

Cleaning unit for an optical system in a copying machine

RICOH KK24 citations82
US6919911B2Jul 19, 2005

Image forming apparatus

RICOH KK10 citations74
US6891554B2May 10, 2005

Method and device for writing control and image forming device

RICOH KK8 citations74
US6839531B2Jan 4, 2005

Belt apparatus used in image formation, and an image formation apparatus

RICOH KK10 citations74
US4487501ADec 11, 1984

Process of exposing photosensitive member

RICOH KK7 citations74
US4474453AOct 2, 1984

Electrostatic copying apparatus

RICOH KK18 citations74
US4365888ADec 28, 1982

Electrostatic copying apparatus

RICOH KK19 citations74
US4261560AApr 14, 1981

Sheet separation apparatus

RICOH KK10 citations74
US4180721ADec 25, 1979

Method of controlling fixing temperature of powder image in electrophotographic copying machine

RICOH KK16 citations74
US4178093ADec 11, 1979

Optomechanical scanning apparatus for copying machine

RICOH KK10 citations74
US4171899AOct 23, 1979

Transfer apparatus

RICOH KK15 citations74
US6718151B2Apr 6, 2004

Image formation apparatus and method of alternating developing units

RICOH KK8 citations73
US4348106ASep 7, 1982

Guide apparatus for movable contact glass in electrophotographic copying machines

RICOH KK9 citations73
US4190349AFeb 26, 1980

Slider reciprocating driving apparatus for use with electrophotographic copying machine

RICOH KK7 citations73
US4128334ADec 5, 1978

Anchorage for a moving body

RICOH KK10 citations73
US4378416AMar 29, 1983

Photosensitive member for use in electrophotographic copying process

RICOH KK7 citations71
US4921236AMay 1, 1990

Recycling automatic document feeder

RICOH KK20 citations70

YANAGAWA NOBUYUKI

1 patent

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