Inventor · disambiguated record
Masato Yanagida
Also filed as: YANAGIDA MASATO
34 granted patents·3 pending applications·751 citations·filing 1989–2007
98Inventor score
Top patents by PatentIndex Score
37 records- 0197US7272354B2Cleaning unit and image forming apparatus having multiple cleaning bladesRICOH KK·Filed 2006·Granted Sep 18, 2007·27 cites·46 claims
- 0295US7266324B2Charging device, and process cartridge and image forming apparatus using the charging deviceRICOH KK·Filed 2006·Granted Sep 4, 2007·18 cites·15 claims
- 0393US7826786B2Image forming apparatus, lubricant applying device, transfer device, process cartridge, and tonerRICOH KK·Filed 2005·Granted Nov 2, 2010·17 cites·13 claims
- 0492US7542712B2Lubricant applicator, and image forming apparatus and process cartridge using the lubricant applicator, and method for assembling the process cartridgeRICOH KK·Filed 2006·Granted Jun 2, 2009·15 cites·4 claims
- 0592US7493075B2Cleaning device, process cartridge and image forming apparatusRICOH KK·Filed 2007·Granted Feb 17, 2009·13 cites·15 claims
- 0692US7218877B2Charging device, and process cartridge and image forming apparatus including the charging device using the sameRICOH KK·Filed 2006·Granted May 15, 2007·12 cites·16 claims
- 0791US7062194B2Charging device, and process cartridge and image forming apparatus including the charging deviceRICOH KK·Filed 2004·Granted Jun 13, 2006·31 cites·17 claims
- 0890US5970282AMethod of cleaning a surface in an image forming apparatus by feeding toner to the surfaceRICOH KK·Filed 1998·Granted Oct 19, 1999·44 cites·41 claims
- 0990US5881339AImage forming apparatus having a cleaning blade for removing deposited tonerRICOH KK·Filed 1997·Granted Mar 9, 1999·44 cites·46 claims
- 1090US4984024AImage transfer unit for image recording apparatusRICOH KK·Filed 1989·Granted Jan 8, 1991·39 cites·12 claims
- 1189US7149465B2Cleaning unit, process cartridge, image forming apparatus, and tonerRICOH KK·Filed 2004·Granted Dec 12, 2006·26 cites·22 claims
- 1289US7110696B2Cleaning unit, process cartridge, and image forming apparatusRICOH KK·Filed 2003·Granted Sep 19, 2006·27 cites·47 claims
- 1388US7139504B2Charging device, and process cartridge and image forming apparatus using the charging deviceRICOH KK·Filed 2004·Granted Nov 21, 2006·24 cites·15 claims
- 1487US7386257B2Imaging apparatus, and toner and process cartridge used in the imaging apparatusRICOH KK·Filed 2006·Granted Jun 10, 2008·7 cites·3 claims
- 1586US7228099B2Cleaning device for cleaning a surface of an image support bodyRICOH KK·Filed 2004·Granted Jun 5, 2007·21 cites·28 claims
- 1686US6539189B2Image bearing member rotation control device, and image forming apparatus and method using the image bearing member rotation control deviceRICOH KK·Filed 2001·Granted Mar 25, 2003·27 cites·70 claims
- 1785US7050741B2Imaging apparatus, and toner and process cartridge used in the imaging apparatusRICOH KK·Filed 2004·Granted May 23, 2006·20 cites·16 claims
- 1885US5396319ACleaning device for an image forming apparatusRICOH KK·Filed 1993·Granted Mar 7, 1995·32 cites·22 claims
- 1984US6665512B1Image forming apparatusRICOH KK·Filed 2000·Granted Dec 16, 2003·19 cites·5 claims
- 2079US6032006AImage forming apparatus having an improved cleaning mechanism and method thereofRICOH KK·Filed 1998·Granted Feb 29, 2000·28 cites·22 claims
- 2178US5597311ASystem for making examination papers and having an automatic marking functionRICOH KK·Filed 1994·Granted Jan 28, 1997·56 cites·10 claims
- 2276US7539451B2Image forming apparatus and tonerRICOH KK·Filed 2005·Granted May 26, 2009·5 cites·10 claims
- 2375US7295796B1Image forming apparatus having a temporary toner holding device and a toner collecting deviceRICOH KK·Filed 2003·Granted Nov 13, 2007·14 cites·37 claims
- 2475US5775918ASystem for making examination papers and having an automatic marking functionRICOH KK·Filed 1996·Granted Jul 7, 1998·65 cites·4 claims
- 2573US7085528B2Cleaning unit, process cartridge, and image forming apparatusRICOH KK·Filed 2003·Granted Aug 1, 2006·12 cites·34 claims
- 2672US7430377B2Image forming apparatus and process cartridge having a detachable unit body having a lubricant applying unit and image carrier mounted thereonRICOH KK·Filed 2004·Granted Sep 30, 2008·12 cites·26 claims
- 2770US7065316B2Cleaning unit, process cartridge, image forming apparatus, and tonerRICOH KK·Filed 2003·Granted Jun 20, 2006·10 cites·42 claims
- 2865US7130564B2Method and apparatus for image forming capable of removing residual toner without using a toner cleaning system, process cartridge for use in the apparatus and toner used for the image formingRICOH KK·Filed 2004·Granted Oct 31, 2006·8 cites·50 claims
- 2965US6023342AImage processing device which transfers scanned sheets to a printing regionRICOH KK·Filed 1997·Granted Feb 8, 2000·30 cites·18 claims
- 3064US5184184AImage forming apparatusRICOH KK·Filed 1992·Granted Feb 2, 1993·25 cites·20 claims
- 3157US5600428ASheet separator for an image forming apparatusRICOH KK·Filed 1994·Granted Feb 4, 1997·17 cites·1 claims
- 3250US6801737B2Image forming apparatus including an image carrier driving mechanismRICOH KK·Filed 2003·Granted Oct 5, 2004·4 cites·17 claims
- 3347US2005164108A1Lubricant for electrophotography, lubricant applying unit, process cartridge, and image forming apparatusFiled 2004·Application pending·0 cites
- 3444US2007036595A1Cleaning unit, process cartridge, image forming apparatus, and tonerAMEMIYA KEN·Filed 2006·Application pending·0 cites
- 3543US7400844B2Image forming apparatus and process cartridge with a cleaner for removing toner from an image bearing memberRICOH KK·Filed 2004·Granted Jul 15, 2008·2 cites·35 claims
- 3638US6947696B2Image forming apparatusRICOH KK·Filed 2003·Granted Sep 20, 2005·0 cites·3 claims
- 3737US2008013998A1Powder transport unit having enhanced transportability and operability, process cartridge and image forming apparatus using the sameKUMAGAI NAOHIRO·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →