Inventor · disambiguated record
Masato Yokoyama
Also filed as: YOKOYAMA MASATO
31 granted patents·1 pending application·751 citations·filing 1984–2017
98Inventor score
Top patents by PatentIndex Score
32 records- 0198US7376375B2Belt-drive control device, color-shift detecting method, color-shift detecting device, and image forming apparatusRICOH KK·Filed 2006·Granted May 20, 2008·47 cites·42 claims
- 0297US7386262B2Belt driving control apparatus and image forming apparatus which uses a moving average process and a revolution average processRICOH KK·Filed 2006·Granted Jun 10, 2008·34 cites·9 claims
- 0396US7251444B2Apparatus for controlling driving of endless belt, and image forming apparatusRICOH KK·Filed 2005·Granted Jul 31, 2007·25 cites·27 claims
- 0495US5878317AElectrophotographic method and apparatus including a toner recycle featureRICOH KK·Filed 1997·Granted Mar 2, 1999·85 cites·21 claims
- 0594US7509074B2Method and apparatus for image forming capable of effectively reducing unevenness of density and color displacement of imagesRICOH KK·Filed 2007·Granted Mar 24, 2009·16 cites·14 claims
- 0694US5799229AToner spreading device for a charging roller of an image forming apparatusRICOH KK·Filed 1997·Granted Aug 25, 1998·69 cites·48 claims
- 0793US7454150B2Image forming apparatus having a resist rotary memberRICOH KK·Filed 2006·Granted Nov 18, 2008·16 cites·4 claims
- 0891US5946529AImage forming apparatus using a roller type charging systemRICOH KK·Filed 1997·Granted Aug 31, 1999·53 cites·12 claims
- 0990US6719469B2Ink jet recording apparatus capable of performing a duplex print operationRICOH KK·Filed 2002·Granted Apr 13, 2004·33 cites·19 claims
- 1089US6949896B2Apparatus for and method of driving motor to move object at a constant velocityRICOH KK·Filed 2003·Granted Sep 27, 2005·54 cites·24 claims
- 1187US6593951B2Optical writing system directed to miniaturization thereof, and image forming apparatus employing itRICOH KK·Filed 2001·Granted Jul 15, 2003·35 cites·37 claims
- 1284US7110700B2Belt driving controller, process cartridge, and image forming apparatusRICOH KK·Filed 2004·Granted Sep 19, 2006·22 cites·54 claims
- 1382US7257339B2Method and apparatus for image forming capable of effectively reducing unevenness of density and color displacement of imagesRICOH KK·Filed 2004·Granted Aug 14, 2007·17 cites·25 claims
- 1477US5321483ACleaning device for image forming equipmentRICOH KK·Filed 1992·Granted Jun 14, 1994·23 cites·6 claims
- 1576US6416176B1Ink-jet printing system having an improved sheet transport mechanismRICOH KK·Filed 1999·Granted Jul 9, 2002·33 cites·9 claims
- 1674US7535594B2Scanning lens for optical scanner, optical scanner, and image forming apparatusRICOH KK·Filed 2004·Granted May 19, 2009·15 cites·8 claims
- 1773US6864906B2Light scanning device and image forming apparatusRICOH KK·Filed 2003·Granted Mar 8, 2005·9 cites·21 claims
- 1872US10466027B2System and method for marker placementFUJITSU TEN CORP OF AMERICA·Filed 2017·Granted Nov 5, 2019·2 cites·22 claims
- 1971US7330009B2Method, apparatus, and program for driving a motor in a feedback control system, capable of suppressing motor oscillationRICOH KK·Filed 2004·Granted Feb 12, 2008·16 cites·6 claims
- 2070US4787808ATrailerSUEHIRO SHARYO SEISAKUSHO KK·Filed 1987·Granted Nov 29, 1988·52 cites·2 claims
- 2169US7712989B2Ink jet recording apparatus capable of performing a duplex print operationRICOH KK·Filed 2005·Granted May 11, 2010·2 cites·12 claims
- 2268US7319475B2Method and apparatus for image forming capable of preventing image quality deterioration induced by heat from an optical deflectorRICOH KK·Filed 2004·Granted Jan 15, 2008·8 cites·73 claims
- 2368US4737090AMovable vane compressorNIPPON DENSO CO·Filed 1986·Granted Apr 12, 1988·20 cites·9 claims
- 2463US7800335B2Method, apparatus, and program for driving a motor in a feedback control system, capable of suppressing motor oscillationRICOH KK·Filed 2007·Granted Sep 21, 2010·4 cites·21 claims
- 2562US7218337B2Optical scanner, optical-path adjustment method, and image forming apparatusRICOH KK·Filed 2003·Granted May 15, 2007·8 cites·19 claims
- 2662US5719684AImage forming apparatus having an endless conveying and transferring belt with an interrupt controlRICOH KK·Filed 1996·Granted Feb 17, 1998·26 cites·26 claims
- 2758US7344326B2Ink jet recording apparatus capable of performing a duplex print operationRICOH KK·Filed 2004·Granted Mar 18, 2008·5 cites·14 claims
- 2857US7307648B2Printing apparatus and method for passbooksTOSHIBA KK·Filed 2005·Granted Dec 11, 2007·2 cites·12 claims
- 2948US4560332ARotary vane-type compressor with vanes of more thermally expansible material than rotor for maintaining separation of rotor from housing side plate during high temperature operationNIPPON DENSO CO·Filed 1984·Granted Dec 24, 1985·11 cites·6 claims
- 3036US2006133873A1Belt drive controlling method, belt drive controlling apparatus, belt apparatus, image forming apparatus, and computer productANDOH TOSHIYUKI·Filed 2005·Application pending·0 cites
- 3133US10080593B2Rod templateNISHIJIMA MEDICAL CO LTD·Filed 2017·Granted Sep 25, 2018·0 cites·8 claims
- 3231US6334878B1Apparatus and method for crystallizationAJINOMOTO KK·Filed 1999·Granted Jan 1, 2002·9 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →