Inventor · disambiguated record
Masahide Yamashita
Also filed as: YAMASHITA MASAHIDE
70 granted patents·9 pending applications·1,463 citations·filing 1981–2018
99Inventor score
Top patents by PatentIndex Score
79 records- 0199US6363229B1Full-color toner image fixing method and apparatusRICOH KK·Filed 2000·Granted Mar 26, 2002·174 cites·18 claims
- 0298US6653037B2Toner for developing latent electrostatic images, and image forming method and deviceRICOH KK·Filed 2001·Granted Nov 25, 2003·91 cites·39 claims
- 0398US6403275B1Electrophotographic toner, and image forming method and apparatus using the tonerRICOH KK·Filed 2000·Granted Jun 11, 2002·130 cites·19 claims
- 0496US7315711B2Image forming apparatus, process cartridge and cleaningless systemRICOH KK·Filed 2005·Granted Jan 1, 2008·25 cites·53 claims
- 0596US6716561B2Toner for developing electrostatic latent image and image forming method using sameRICOH KK·Filed 2001·Granted Apr 6, 2004·75 cites·14 claims
- 0696US6566026B2Toner for developing electrostatic latent image, toner container containing the toner, and image forming method and apparatus using the tonerRICOH KK·Filed 2001·Granted May 20, 2003·75 cites·26 claims
- 0795US8081916B2Protective agent for image bearing member, protective layer setting unit, and process cartridgeTANAKA SHINYA·Filed 2009·Granted Dec 20, 2011·12 cites·22 claims
- 0895US7653339B2Protective agent, image forming apparatus, and process cartridgeRICOH KK·Filed 2007·Granted Jan 26, 2010·18 cites·18 claims
- 0995US7252919B2Carrier and developer for latent electrostatic image development, container housing developer, image forming process, image forming apparatus, and process cartridgeRICOH KK·Filed 2006·Granted Aug 7, 2007·16 cites·37 claims
- 1095US6303257B1Electrophotographic toner and image forming method using the tonerRICOH KK·Filed 2000·Granted Oct 16, 2001·66 cites·8 claims
- 1194US6852459B2Color toner, method for manufacturing the toner, and image forming apparatus and method using the tonerRICOH KK·Filed 2002·Granted Feb 8, 2005·53 cites·15 claims
- 1294US6221549B1Toner for developing latent electrostatic images, binder resin for use in the toner, and image formation method using the tonerRICOH KK·Filed 1999·Granted Apr 24, 2001·64 cites·16 claims
- 1392US8064782B2Management device of an image forming apparatusNAKAZATO YASUSHI·Filed 2008·Granted Nov 22, 2011·13 cites·14 claims
- 1492US7941087B2Image-bearing member protecting agent, protective layer forming device, image forming method, image forming apparatus and process cartridgeRICOH CO LTD·Filed 2009·Granted May 10, 2011·12 cites·17 claims
- 1592US7218879B2Image forming apparatus controlling polarity of residual toner and process cartridge for use in the sameRICOH KK·Filed 2004·Granted May 15, 2007·39 cites·14 claims
- 1692US6790575B2Two-component developer, image forming apparatus, and image forming methodRICOH KK·Filed 2002·Granted Sep 14, 2004·43 cites·20 claims
- 1792US6743558B2Carrier for electrophotographic developerRICOH KK·Filed 2002·Granted Jun 1, 2004·41 cites·22 claims
- 1891US7970334B2Image-carrier protecting agent, protecting-layer forming device, image forming method, image forming apparatus, and process cartridgeRICOH CO LTD·Filed 2007·Granted Jun 28, 2011·12 cites·17 claims
- 1991US7962054B2Image forming apparatus having a function of predicting device deterioration based on a plurality of types of operation control informationRICOH CO LTD·Filed 2007·Granted Jun 14, 2011·11 cites·12 claims
- 2091US7734242B2Protective layer setting unit, process cartridge, and image forming apparatus using sameRICOH KK·Filed 2008·Granted Jun 8, 2010·13 cites·19 claims
- 2191US5761594AImage forming apparatusRICOH KK·Filed 1995·Granted Jun 2, 1998·57 cites·14 claims
- 2289US5873018AImage forming apparatus having an intermediate transfer unit with a surface having reduced coefficient of frictionRICOH KK·Filed 1997·Granted Feb 16, 1999·46 cites·20 claims
- 2388US8150278B2Image forming apparatus including a sound sensor to determine cleaning failureSATOH OSAMU·Filed 2009·Granted Apr 3, 2012·11 cites·15 claims
- 2487US8080096B2Protecting agent for image bearing member and production method therefor, protection layer forming apparatus, image forming method, image forming apparatus, and process cartridgeYAMASHITA MASAHIDE·Filed 2007·Granted Dec 20, 2011·9 cites·10 claims
- 2587US7991342B2Protective material and image forming apparatus using the protective materialRICOH CO LTD·Filed 2009·Granted Aug 2, 2011·8 cites·20 claims
- 2687US7049037B2Color toner, method for manufacturing the toner, and image forming apparatus and method using the tonerRICOH KK·Filed 2004·Granted May 23, 2006·25 cites·9 claims
- 2786US7344812B2Developer for developing electrostatic latent image and image forming apparatusRICOH KK·Filed 2003·Granted Mar 18, 2008·26 cites·8 claims
- 2885US7826787B2Protective-agent applying device, process cartridge, and image forming apparatusRICOH KK·Filed 2008·Granted Nov 2, 2010·8 cites·9 claims
- 2985US7272347B2Carrier, developer including the carrier, and image forming apparatus using the developerRICOH KK·Filed 2006·Granted Sep 18, 2007·7 cites·7 claims
- 3083US8190037B2Fault prediction method, fault prediction system, and image forming apparatusNAKAZATO YASUSHI·Filed 2009·Granted May 29, 2012·7 cites·8 claims
- 3182US8472818B2Image carrier deterioration degree evaluating device, image carrier failure predicting device, and image forming apparatusYAMANE JUN·Filed 2011·Granted Jun 25, 2013·3 cites·7 claims
- 3282US8081917B2Image-bearing member protecting agent, protective layer forming device, process cartridge and image forming apparatusNAKAI HIROSHI·Filed 2009·Granted Dec 20, 2011·6 cites·7 claims
- 3382US7986910B2Lubricant coater, image bearing unit, and image forming apparatusRICOH CO LTD·Filed 2008·Granted Jul 26, 2011·6 cites·6 claims
- 3482US5882832AOne component developer developing method and dry toner thereforRICOH KK·Filed 1997·Granted Mar 16, 1999·38 cites·18 claims
- 3581US8358941B2Management device of an image forming apparatusRICOH CO LTD·Filed 2011·Granted Jan 22, 2013·2 cites·14 claims
- 3680US8285188B2Protective agent for image bearing member, protective layer setting unit, and process cartridgeTANAKA SHINYA·Filed 2011·Granted Oct 9, 2012·1 cites·15 claims
- 3780US7144669B2Carrier and developer for latent electrostatic image development, container housing developer, image forming process, image forming apparatus, and process cartridgeRICOH KK·Filed 2004·Granted Dec 5, 2006·15 cites·13 claims
- 3880US5655199AIntermediate transfer type image forming apparatus and an intermediate transfer medium thereforRICOH KK·Filed 1996·Granted Aug 5, 1997·30 cites·8 claims
- 3979US8339637B2Management apparatus, management system, operation status determination method, and image forming apparatusNAKAZATO YASUSHI·Filed 2008·Granted Dec 25, 2012·10 cites·20 claims
- 4077US8294918B2Apparatus and method for generating a simulated image including an identified image abnormalitySATOH OSAMU·Filed 2007·Granted Oct 23, 2012·9 cites·17 claims
- 4175US8180271B2Protective layer setting unit, process cartridge, and image forming apparatus, and method of evaluating protective layer setting unitHATAKEYAMA KUMIKO·Filed 2008·Granted May 15, 2012·5 cites·7 claims
- 4275US8175849B2Predictive failure reporting system, predictive failure reporting method, and method for maintaining image forming apparatusYAMASHITA MASAHIDE·Filed 2009·Granted May 8, 2012·4 cites·14 claims
- 4374US10599064B2Powder-amount detection device and image forming apparatus incorporating sameYAMASHITA MASAHIDE·Filed 2018·Granted Mar 24, 2020·1 cites·20 claims
- 4474US5774775AElectrophotograhic image forming method using an intermediate image transfer elementRICOH KK·Filed 1996·Granted Jun 30, 1998·23 cites·13 claims
- 4573US8531696B2Management apparatus, management system, and management methodSAWADA MASAICHI·Filed 2011·Granted Sep 10, 2013·2 cites·9 claims
- 4673US7738829B2Process cartridge including photoconductor pre-coated with protective agent and image forming apparatus using sameRICOH KK·Filed 2008·Granted Jun 15, 2010·4 cites·18 claims
- 4773US7172846B2Carrier, developer, image forming apparatus and process cartridgeRICOH KK·Filed 2004·Granted Feb 6, 2007·11 cites·24 claims
- 4873US7122286B2Toner for development of electrostatic latent images, method of forming images, image formation apparatus, toner container containing the toner therein, and image formation apparatus equipped with the toner containerRICOH KK·Filed 2001·Granted Oct 17, 2006·13 cites·4 claims
- 4972US8107872B2Image forming apparatus and process cartridgeOZAKI NAOYUKI·Filed 2009·Granted Jan 31, 2012·4 cites·6 claims
- 5071US8208835B2Protective layer forming device, image forming apparatus, and process cartridgeKABATA TOSHIYUKI·Filed 2009·Granted Jun 26, 2012·3 cites·8 claims
Showing the top 50 of 79 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →