Inventor · disambiguated record
Itaru Matsuda
Also filed as: MATSUDA ITARU
20 granted patents·647 citations·filing 1986–2007
96Inventor score
Files withRICOH KK20
Top patents by PatentIndex Score
20 records- 0194US5812919AImage transferring device for an image forming apparatusRICOH KK·Filed 1996·Granted Sep 22, 1998·74 cites·30 claims
- 0294US5631725AImage transfer device for an image forming apparatusRICOH KK·Filed 1994·Granted May 20, 1997·57 cites·30 claims
- 0391US5461461AImage transferring device and medium separating device for an image forming apparatusRICOH KK·Filed 1993·Granted Oct 24, 1995·40 cites·32 claims
- 0491US4916547AColor image forming apparatusRICOH KK·Filed 1988·Granted Apr 10, 1990·90 cites·8 claims
- 0590US5659843AImage transferring device for image forming equipmentRICOH KK·Filed 1995·Granted Aug 19, 1997·61 cites·17 claims
- 0690US4984024AImage transfer unit for image recording apparatusRICOH KK·Filed 1989·Granted Jan 8, 1991·39 cites·12 claims
- 0786US6173148B1Image forming apparatus with a transfer member having an inherent volume resistance less than that of an inner layer of a transport support elementRICOH KK·Filed 1999·Granted Jan 9, 2001·44 cites·47 claims
- 0885US5666622AImage transferring device and medium separating device for an image forming apparatusRICOH KK·Filed 1995·Granted Sep 9, 1997·35 cites·35 claims
- 0983US5557384AImage transferring device for image forming equipmentRICOH KK·Filed 1994·Granted Sep 17, 1996·28 cites·7 claims
- 1082US5189479AImage transferring device for a color image recorderRICOH KK·Filed 1991·Granted Feb 23, 1993·30 cites·7 claims
- 1179US5640660AImage transferring device for image forming equipmentRICOH KK·Filed 1995·Granted Jun 17, 1997·23 cites·49 claims
- 1278US4745282AVentilated corona chargingRICOH KK·Filed 1986·Granted May 17, 1988·39 cites·18 claims
- 1374US5897241AImage transferring device for image forming equipmentRICOH KK·Filed 1996·Granted Apr 27, 1999·19 cites·3 claims
- 1473US5495317AImage transfer device for an image forming apparatusRICOH KK·Filed 1995·Granted Feb 27, 1996·23 cites·13 claims
- 1569US5978617AImage transferring device for image forming equipmentRICOH KK·Filed 1998·Granted Nov 2, 1999·15 cites·21 claims
- 1667US7184678B2Image forming apparatus with improved separatability of transfer materialRICOH KK·Filed 2004·Granted Feb 27, 2007·9 cites·28 claims
- 1764US6525753B2Image forming apparatus having developing device including developing rollers with differing flux density and optical writing device using xonality data of four levels or lessRICOH KK·Filed 2000·Granted Feb 25, 2003·9 cites·4 claims
- 1857US6859630B2Image transferring and recording medium conveying device and image forming apparatus including the sameRICOH KK·Filed 2002·Granted Feb 22, 2005·7 cites·18 claims
- 1956US7769310B2Image forming apparatus with improved separability of transfer materialRICOH KK·Filed 2007·Granted Aug 3, 2010·1 cites·15 claims
- 2037US6002905ABelt transfer device for an image forming apparatusRICOH KK·Filed 1998·Granted Dec 14, 1999·4 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →