Inventor
OBU MAKOTO
JP46 patents
⚠️ This page may combine multiple inventors who share the name “OBU MAKOTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
45 patentsUS6324374B1Nov 27, 2001
Belt device and unit device including belt device and image forming apparatus using the belt device and unit device
RICOH KK90 citations99
US6347212B1Feb 12, 2002
Image forming apparatus having improved image carrier cleaning
RICOH KK91 citations98
US6597884B2Jul 22, 2003
Image forming apparatus including electrostatic conveyance of charged toner
RICOH KK79 citations97
US6556802B2Apr 29, 2003
Belt device and unit device including belt device and image forming apparatus using the belt device and unit device
RICOH KK40 citations96
US6292305B1Sep 18, 2001
Virtual screen display device
RICOH KK77 citations96
US6108508AAug 22, 2000
Image forming apparatus using wet type developing device
RICOH KK60 citations96
US5953559ASep 14, 1999
Device and method for forming full-color images
RICOH KK59 citations96
US5923930AJul 13, 1999
Apparatus for controlling density of liquid developing solution and apparatus for forming images
RICOH KK84 citations96
US5493365AFeb 20, 1996
Operating section for an image forming apparatus
RICOH KK64 citations96
US5235384AAug 10, 1993
Image forming apparatus with replaceable process units
RICOH KK72 citations96
US5208612AMay 4, 1993
Image recording apparatus constituting of selectable units
RICOH KK95 citations96
US5848329ADec 8, 1998
Image forming apparatus having a mounting/dismounting mechanism
RICOH KK83 citations95
US4760422AJul 26, 1988
Developing device using single component toner
RICOH KK66 citations95
US6571071B2May 27, 2003
Consumption information management apparatus, image formation apparatus, and consumption information management system
RICOH KK62 citations94
US6308027B1Oct 23, 2001
Image forming apparatus having a common sheet processing station
RICOH KK75 citations94
US5754202AMay 19, 1998
Ink jet recording apparatus
RICOH KK77 citations94
US6545803B1Apr 8, 2003
Virtual screen display device
RICOH KK28 citations93
US6405008B1Jun 11, 2002
Image forming apparatus using a developing liquid, developing device therefor and program recording medium
RICOH KK28 citations93
US6072972AJun 6, 2000
Image forming apparatus having liquid developing device for forming compact developing layer
RICOH KK21 citations93
US5652080AJul 29, 1997
Methods and apparatus to duplicate images on various image carrying media using liquid carrier based developer
RICOH KK39 citations93
US4589730AMay 20, 1986
Light transmission control apparatus using air bubbles
RICOH KK29 citations93
US7343126B2Mar 11, 2008
Image forming apparatus including a transfer belt having image forming units disposed thereabout
RICOH KK15 citations92
US7203452B2Apr 10, 2007
Tandem image forming device having a side-by-side arrangement of image forming sections
RICOH KK28 citations92
US7054585B2May 30, 2006
Belt device and unit device including belt device and image forming apparatus using the belt device and unit device
RICOH KK25 citations92
US6941102B2Sep 6, 2005
Belt device and unit device including belt device and image forming apparatus using the belt device and unit device
RICOH KK19 citations92
US6768891B2Jul 27, 2004
Belt device and unit device including belt device and image forming apparatus using the belt device and unit device
RICOH KK20 citations92
US6757512B2Jun 29, 2004
Tandem image forming device, image forming apparatus and method for using the same
RICOH KK32 citations92
US5987281ANov 16, 1999
Image forming apparatus
RICOH KK48 citations92
US5987282ANov 16, 1999
Image forming apparatus with a developing device using a developing liquid
RICOH KK41 citations92
US5864737AJan 26, 1999
Image forming device which forms an electric field to discharge an object
RICOH KK33 citations92
US5666616ASep 9, 1997
Wet-type image forming apparatus for forming a condensed toner image
RICOH KK49 citations92
US5610725AMar 11, 1997
Communication system for managing data of resources of image forming unit
RICOH KK44 citations92
US5504590AApr 2, 1996
Communication system for managing data of resources of image forming unit
RICOH KK30 citations92
US5379058AJan 3, 1995
Recording apparatus using a thermosensitive recording medium
RICOH KK20 citations92
US5300952AApr 5, 1994
Thermal image forming equipment forms image directly on image carrier or paper sheet
RICOH KK23 citations92
US4696255ASep 29, 1987
Developing apparatus
RICOH KK47 citations92
US7693466B2Apr 6, 2010
Method for arranging image forming sections
RICOH KK11 citations84
US6501932B2Dec 31, 2002
Image forming apparatus using a developing liquid, developing device therefor and program recording medium
RICOH KK14 citations84
US5051760ASep 24, 1991
Direct image recording apparatus using toner
RICOH KK20 citations81
US6226468B1May 1, 2001
Image forming method and apparatus having a ratio of a thickness or a weight per unit area between liquid developer on a developing device and image carrier being smaller than about 0.71
RICOH KK9 citations74
US5619243AApr 8, 1997
Image recording and erasing method
RICOH KK13 citations74
US5612278AMar 18, 1997
Reversible image recording method using reversible thermosensitive recording material
RICOH KK7 citations74
US5517228AMay 14, 1996
Apparatus for displaying a recording medium sheet and printing an image thereon
RICOH KK9 citations74
US5371522ADec 6, 1994
Apparatus for erasing and recording data in a thermosensitive recording medium
RICOH KK18 citations74
US5845186ADec 1, 1998
Wet image forming apparatus including an intermediate transfer body having projections
RICOH KK5 citations63