Inventor · disambiguated record
Motokazu Yasui
Also filed as: YASUI MOTOKAZU
38 granted patents·1 pending application·1,655 citations·filing 1993–2008
98Inventor score
Top patents by PatentIndex Score
39 records- 0198US7022944B2Image forming apparatus preventing excessive increase in temperature of fixing deviceRICOH KK·Filed 2004·Granted Apr 4, 2006·90 cites·18 claims
- 0298US6628916B2Fixing device preventing rubbing of toner imageRICOH KK·Filed 2001·Granted Sep 30, 2003·107 cites·28 claims
- 0397US7693439B2Fixing device, and method and device for heating control used in the sameRICOH KK·Filed 2007·Granted Apr 6, 2010·29 cites·20 claims
- 0497US6898407B2Desktop color image forming apparatus and method of making the sameRICOH KK·Filed 2003·Granted May 24, 2005·61 cites·56 claims
- 0597US6892044B2Liquid application apparatus and image formation apparatusRICOH KK·Filed 2002·Granted May 10, 2005·84 cites·8 claims
- 0697US6881927B2Image forming apparatus preventing excessive increase in temperature of fixing deviceRICOH KK·Filed 2002·Granted Apr 19, 2005·85 cites·27 claims
- 0797US6785505B2Fixing device preventing rubbing of toner imageRICOH KK·Filed 2003·Granted Aug 31, 2004·83 cites·8 claims
- 0897US6778790B2Fixing device capable of preventing excessive increase in temperatureRICOH KK·Filed 2002·Granted Aug 17, 2004·89 cites·26 claims
- 0997US6263185B1Image forming apparatus with a scanner inputRICOH KK·Filed 1999·Granted Jul 17, 2001·72 cites·15 claims
- 1097US5400123AImage forming apparatus capable of erasing an image recorded in a sheetRICOH KK·Filed 1993·Granted Mar 21, 1995·102 cites·29 claims
- 1196US7734208B2Image fixing apparatus and image forming apparatus capable of effectively controlling an image fixing temperatureRICOH KK·Filed 2006·Granted Jun 8, 2010·28 cites·15 claims
- 1296US6778804B2Fixing device and image forming apparatus including the sameRICOH KK·Filed 2003·Granted Aug 17, 2004·71 cites·8 claims
- 1396US6636709B2Fixing device having temperature detecting member and image forming apparatus using said fixing deviceRICOH KK·Filed 2001·Granted Oct 21, 2003·108 cites·36 claims
- 1496US5839032AImage forming apparatus having selectably controlled sheet discharge pathsRICOH KK·Filed 1997·Granted Nov 17, 1998·128 cites·23 claims
- 1595US7263309B2Desktop color image forming apparatus and method of making the sameRICOH KK·Filed 2005·Granted Aug 28, 2007·15 cites·26 claims
- 1695US6807386B2Fixing device and image forming apparatusRICOH KK·Filed 2003·Granted Oct 19, 2004·63 cites·31 claims
- 1795US6134418AImage forming apparatus having a casing mounted to the apparatus at an upper portion of a stacking deviceRICOH KK·Filed 1999·Granted Oct 17, 2000·55 cites·20 claims
- 1895US6112047AImage forming apparatus having a substantially vertical sheet transport path and a relaying mechanism that cooperate to transfer a sheet to a sheet discharge sectionRICOH KK·Filed 1997·Granted Aug 29, 2000·55 cites·29 claims
- 1995US5481350AHeat roller fixing device divided into first and second frames and with positioning members of the first frameRICOH KK·Filed 1994·Granted Jan 2, 1996·49 cites·3 claims
- 2094US6567643B2Apparatuses for color image formation, tandem color image formation and image formationRICOH KK·Filed 2001·Granted May 20, 2003·38 cites·7 claims
- 2193US7333749B2Desktop color image forming apparatus and method of making the sameRICOH KK·Filed 2007·Granted Feb 19, 2008·10 cites·32 claims
- 2290US6719469B2Ink jet recording apparatus capable of performing a duplex print operationRICOH KK·Filed 2002·Granted Apr 13, 2004·33 cites·19 claims
- 2390US5729798AHeat roller fixing device having positioning membersRICOH KK·Filed 1997·Granted Mar 17, 1998·45 cites·13 claims
- 2488US6973283B2Color image forming apparatus, and toner replenishing apparatusRICOH KK·Filed 2001·Granted Dec 6, 2005·20 cites·21 claims
- 2585US7427727B2Fixing apparatus and an image formation apparatusRICOH KK·Filed 2006·Granted Sep 23, 2008·10 cites·9 claims
- 2679US6801749B2Apparatuses for color image formation, tandem color image formation and image formationRICOH KK·Filed 2003·Granted Oct 5, 2004·12 cites·20 claims
- 2778US7406283B2Desktop color image forming apparatus and method of making the sameRICOH KK·Filed 2007·Granted Jul 29, 2008·3 cites·9 claims
- 2877US7606521B2Desktop color image forming apparatus and method of making the sameRICOH KK·Filed 2008·Granted Oct 20, 2009·3 cites·19 claims
- 2976US6416176B1Ink-jet printing system having an improved sheet transport mechanismRICOH KK·Filed 1999·Granted Jul 9, 2002·33 cites·9 claims
- 3075US5745247AImage forming apparatus having a controlled fixing unitRICOH KK·Filed 1995·Granted Apr 28, 1998·49 cites·7 claims
- 3172US7436417B2Color image forming apparatus, and toner replenishing apparatusRICOH KK·Filed 2006·Granted Oct 14, 2008·2 cites·21 claims
- 3269US7712989B2Ink jet recording apparatus capable of performing a duplex print operationRICOH KK·Filed 2005·Granted May 11, 2010·2 cites·12 claims
- 3369US7212764B2Color image forming apparatus, and toner replenishing apparatusRICOH KK·Filed 2004·Granted May 1, 2007·7 cites·40 claims
- 3461US6785504B2Apparatuses for color image formation, tandem color image formation and image formationRICOH KK·Filed 2003·Granted Aug 31, 2004·5 cites·5 claims
- 3558US7344326B2Ink jet recording apparatus capable of performing a duplex print operationRICOH KK·Filed 2004·Granted Mar 18, 2008·5 cites·14 claims
- 3657US6766137B2Apparatuses for color image formation, tandem color image formation and image formationRICOH KK·Filed 2003·Granted Jul 20, 2004·4 cites·6 claims
- 3753US2008292347A1Fixing apparatus and an image formation apparatusKOIDE HIROSHI·Filed 2008·Application pending·0 cites
- 3852US7894744B2Color image forming apparatus, and toner replenishing apparatusRICOH CO LTD·Filed 2008·Granted Feb 22, 2011·0 cites·9 claims
- 3950US7457561B2Color image forming apparatus, and toner replenishing apparatusRICOH KK·Filed 2007·Granted Nov 25, 2008·0 cites·27 claims
Join the waitlist — get patent alerts
Get an alert when Motokazu Yasui files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →