Inventor · disambiguated record
Yohta Sakon
Also filed as: SAKON YOHTA
59 granted patents·7 pending applications·1,981 citations·filing 1990–2022
99Inventor score
Top patents by PatentIndex Score
66 records- 0198US6030733AElectrophotographic photoconductor with water vapor permeabilityRICOH KK·Filed 1999·Granted Feb 29, 2000·133 cites·2 claims
- 0297US6641964B2Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptorRICOH KK·Filed 2001·Granted Nov 4, 2003·80 cites·24 claims
- 0397US6562529B1Electrophotographic drum-shaped photoconductor and image forming method and apparatus using the sameRICOH KK·Filed 2000·Granted May 13, 2003·85 cites·12 claims
- 0497US6151468AElectrophotographic photoconductorRICOH KK·Filed 1999·Granted Nov 21, 2000·105 cites·2 claims
- 0597US6060205AImage forming apparatusRICOH KK·Filed 1999·Granted May 9, 2000·120 cites·61 claims
- 0697US5420288AElectroluminescent device comprising oxadiazole compounds luminescent material, oxadiazole compounds for the device, and method of producing oxadiazole compoundsRICOH KK·Filed 1993·Granted May 30, 1995·83 cites·41 claims
- 0797US5077142AElectroluminescent devicesRICOH KK·Filed 1990·Granted Dec 31, 1991·384 cites·5 claims
- 0896US6576388B2Multilayer electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge using the photoreceptorRICOH KK·Filed 2001·Granted Jun 10, 2003·68 cites·24 claims
- 0996US6558862B2Electrophotographic photoreceptor and image forming apparatus using the photoreceptorRICOH KK·Filed 2001·Granted May 6, 2003·70 cites·30 claims
- 1095US6363237B1Unit for imparting lubricity to electrophotographic photoconductor, electrophotographic image formation apparatus including the unit, and image formation method using the apparatusRICOH KK·Filed 1999·Granted Mar 26, 2002·81 cites·20 claims
- 1194US6521386B1Electrophotographic photoreceptor and electrophotographic image forming method and apparatus using the photoreceptorRICOH KK·Filed 2000·Granted Feb 18, 2003·60 cites·18 claims
- 1294US6160977AImage forming apparatus and device for applying a lubricant to an imageRICOH KK·Filed 1999·Granted Dec 12, 2000·72 cites·19 claims
- 1393US6686114B2Electrophotographic image forming method and apparatusRICOH KK·Filed 2002·Granted Feb 3, 2004·47 cites·23 claims
- 1493US5656401AElectroluminescent device comprising oxadiazole compounds luminescent material, oxadiazole compounds for the device, and method of producing oxadiazole compoundsRICOH KK·Filed 1994·Granted Aug 12, 1997·76 cites·21 claims
- 1593US5153073AElectroluminescent deviceRICOH KK·Filed 1991·Granted Oct 6, 1992·80 cites·8 claims
- 1692US11179940B2Liquid discharging device and wiping methodRICOH CO LTD·Filed 2019·Granted Nov 23, 2021·4 cites·11 claims
- 1792US6844124B2Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptorRICOH KK·Filed 2003·Granted Jan 18, 2005·31 cites·9 claims
- 1891US8644753B2Cleaning blade, and image forming apparatus and process cartridge using sameOHMORI MASAHIRO·Filed 2011·Granted Feb 4, 2014·6 cites·14 claims
- 1991US5597925AMethod of producing oxadiazole compoundsRICOH KK·Filed 1995·Granted Jan 28, 1997·67 cites·2 claims
- 2090US8369769B2Cleaning blade, image forming apparatus, and process cartridgeRICOH CO LTD·Filed 2011·Granted Feb 5, 2013·7 cites·8 claims
- 2190US6516169B2Electrophotographic image forming apparatus having a gap between photoreceptor and charger, and process cartridge thereforRICOH KK·Filed 2001·Granted Feb 4, 2003·34 cites·60 claims
- 2290US5610309AElectroluminescent device comprising oxadiazole compounds luminescent material, oxadiazole compounds for the device, and method of producing oxadiazole compoundsRICOH KK·Filed 1995·Granted Mar 11, 1997·63 cites·3 claims
- 2388US5118986AElectroluminescent deviceRICOH KK·Filed 1990·Granted Jun 2, 1992·36 cites·15 claims
- 2487US11130343B2Wiping device, liquid discharging device, and wiping methodRICOH CO LTD·Filed 2019·Granted Sep 28, 2021·2 cites·12 claims
- 2587US8913944B2Cleaning blade, and image forming apparatus and process cartridge using the cleaning bladeSAKON YOHTA·Filed 2013·Granted Dec 16, 2014·4 cites·14 claims
- 2686US9052631B2Image forming apparatus, process cartridge, and image forming methodGOHDA SHOHEI·Filed 2013·Granted Jun 9, 2015·4 cites·10 claims
- 2785US9395676B2Cleaning blade having an elastic body of segmented hardnesses, and image forming apparatus and process cartridge including the cleaning bladeSAKAGUCHI HIROMI·Filed 2015·Granted Jul 19, 2016·3 cites·7 claims
- 2885US8897690B2Cleaning blade, image forming apparatus and process cartridgeSAKON YOHTA·Filed 2013·Granted Nov 25, 2014·4 cites·12 claims
- 2985US8224224B2Cleaning blade and image forming apparatus, process cartridge, and image forming method using the sameOHMORI MASAHIRO·Filed 2009·Granted Jul 17, 2012·8 cites·15 claims
- 3085US6706459B2Electrophotographic drum-shaped photoconductor and image forming method and apparatus using the sameRICOH KK·Filed 2003·Granted Mar 16, 2004·22 cites·18 claims
- 3184US9383713B2Cleaning blade, image forming apparatus, and process cartridgeSAKON YOHTA·Filed 2015·Granted Jul 5, 2016·3 cites·12 claims
- 3283US9037067B2Image forming apparatus and process cartridgeIKUNO HIROSHI·Filed 2013·Granted May 19, 2015·4 cites·5 claims
- 3382US9146524B2Cleaning blade, image forming apparatus, and process cartridgeGOHDA SHOHEI·Filed 2014·Granted Sep 29, 2015·3 cites·11 claims
- 3482US9031491B2Image forming apparatus and process cartridgeRICOH CO LTD·Filed 2013·Granted May 12, 2015·3 cites·7 claims
- 3581US9588479B2Image forming apparatus and process cartridgeGOHDA SHOHEI·Filed 2016·Granted Mar 7, 2017·2 cites·12 claims
- 3678US8867960B2Image forming apparatus and process cartridgeTODA NAOHIRO·Filed 2013·Granted Oct 21, 2014·2 cites·8 claims
- 3777US5932362AOrganic electroluminescent elementRICOH KK·Filed 1997·Granted Aug 3, 1999·44 cites·2 claims
- 3875US10146169B2Cleaning blade, process cartridge, and image forming apparatusAOYAMA YUKA·Filed 2017·Granted Dec 4, 2018·1 cites·12 claims
- 3974US5702833AOrganic electroluminescent elementRICOH KK·Filed 1995·Granted Dec 30, 1997·40 cites·4 claims
- 4072US9851682B2Cleaning blade including modified portion including impregnated portion and surface layer, and process cartridge and image forming apparatus including the cleaning bladeAOYAMA YUKA·Filed 2016·Granted Dec 26, 2017·1 cites·9 claims
- 4172US9342031B2Cleaning blade, image forming apparatus and process cartridgeSAKAGUCHI HIROMI·Filed 2015·Granted May 17, 2016·1 cites·6 claims
- 4272US9244424B1Cleaning blade, image forming apparatus and process cartridgeSAKAGUCHI HIROMI·Filed 2015·Granted Jan 26, 2016·1 cites·9 claims
- 4370US9244423B2Cleaning blade, and image forming apparatus and process cartridge using the cleaning bladeGONDOH MASANOBU·Filed 2015·Granted Jan 26, 2016·1 cites·14 claims
- 4470US9207624B2Cleaning blade, method for preparing the cleaning blade, and image forming apparatus and process cartridge using the cleaning bladeTOYAMA KAORI·Filed 2015·Granted Dec 8, 2015·1 cites·8 claims
- 4570US5093210AElectroluminescent deviceRICOH KK·Filed 1990·Granted Mar 3, 1992·32 cites·3 claims
- 4668US9046864B2Cleaning blade, and image forming apparatus using same and process cartridgeGONDOH MASANOBU·Filed 2013·Granted Jun 2, 2015·1 cites·14 claims
- 4768US7153621B2Electrophotographic photoreceptor and image forming apparatus using the photoreceptorRICOH KK·Filed 2005·Granted Dec 26, 2006·2 cites·33 claims
- 4867US11780230B2Wiper, wiping device, liquid discharge apparatus, and wiping methodRICOH CO LTD·Filed 2019·Granted Oct 10, 2023·0 cites·15 claims
- 4964US12064968B2Wiping device, liquid discharging device, and wiping methodATAKE Takumi·Filed 2021·Granted Aug 20, 2024·0 cites·20 claims
- 5063US10889119B2Wiping device, wiping member, liquid discharging device, and wiping methodSAKON YOHTA·Filed 2019·Granted Jan 12, 2021·0 cites·10 claims
Showing the top 50 of 66 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →