Inventor · disambiguated record
Yuuji Sawai
Also filed as: SAWAI YUUJI
34 granted patents·982 citations·filing 2000–2016
98Inventor score
Top patents by PatentIndex Score
34 records- 0197US6618565B2Transfer bias applying method for an image forming apparatus and device for the sameRICOH KK·Filed 2002·Granted Sep 9, 2003·80 cites·7 claims
- 0296US7346287B2Transfer device for forming a stable transfer electric field, and an image forming apparatus including the transfer deviceRICOH KK·Filed 2006·Granted Mar 18, 2008·25 cites·12 claims
- 0396US6829450B2Transfer bias applying method for an image forming apparatus and device for the sameRICOH KK·Filed 2003·Granted Dec 7, 2004·59 cites·8 claims
- 0496US6785500B2Image forming apparatus including image transfer body with elastic layer and coating layerRICOH KK·Filed 2002·Granted Aug 31, 2004·65 cites·12 claims
- 0596US6741821B2Image forming apparatus, and process cartridge for use in image forming apparatusRICOH KK·Filed 2002·Granted May 25, 2004·71 cites·6 claims
- 0696US6697595B2Method and apparatus for forming an image with no degradationRICOH KK·Filed 2001·Granted Feb 24, 2004·77 cites·24 claims
- 0796US6611672B2Image forming apparatus, monocolor image forming apparatus, toner recycling apparatus and intermediate transfer memberRICOH KK·Filed 2001·Granted Aug 26, 2003·90 cites·58 claims
- 0895US7610004B2Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of imageRICOH KK·Filed 2007·Granted Oct 27, 2009·21 cites·19 claims
- 0995US7502583B2Transfer device and image forming apparatus for enhancement of an image stored on a recording mediumRICOH KK·Filed 2005·Granted Mar 10, 2009·25 cites·13 claims
- 1095US7003238B2Intermediate image transfer device for a color image forming apparatusRICOH KK·Filed 2003·Granted Feb 21, 2006·62 cites·69 claims
- 1195US6901234B2Image forming apparatus including an intermediate image transfer belt and high resistance contact memberRICOH KK·Filed 2003·Granted May 31, 2005·70 cites·19 claims
- 1295US6516179B1Image forming apparatus, image transferring device and recording medium conveying methodRICOH KK·Filed 2000·Granted Feb 4, 2003·48 cites·19 claims
- 1394US9238552B2Belt tracking system, roller assembly, and image forming apparatus including sameHOZUMI YOSHIKI·Filed 2013·Granted Jan 19, 2016·11 cites·12 claims
- 1493US8657104B2Belt positioning system, multi-roller assembly and image forming apparatus employing sameASAOKA AKIRA·Filed 2013·Granted Feb 25, 2014·9 cites·17 claims
- 1593US7203433B2Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of imageRICOH KK·Filed 2004·Granted Apr 10, 2007·43 cites·7 claims
- 1693US6823149B2Image forming apparatus with variable speed transferring and fixing devicesRICOH KK·Filed 2003·Granted Nov 23, 2004·43 cites·5 claims
- 1790US7280792B2Method for evaluating changes in resistance of electric resistance member and image forming apparatus using sameRICOH KK·Filed 2004·Granted Oct 9, 2007·34 cites·11 claims
- 1890US6813471B2Image forming apparatus, image transferring device and recording medium conveying methodRICOH KK·Filed 2002·Granted Nov 2, 2004·28 cites·37 claims
- 1989US6768892B2Image forming apparatus with a photoconductive element and intermediate image transfer memberRICOH KK·Filed 2002·Granted Jul 27, 2004·28 cites·17 claims
- 2087US7277662B2Belt member, belt driving unit, and image forming apparatusRICOH KK·Filed 2005·Granted Oct 2, 2007·9 cites·17 claims
- 2186US7174124B2Tandem color image forming apparatus with an image transfer belt and backup rollerRICOH KK·Filed 2003·Granted Feb 6, 2007·25 cites·36 claims
- 2283US6885842B2Image forming apparatus with photoconductive element and intermediate image transfer memberRICOH KK·Filed 2004·Granted Apr 26, 2005·19 cites·17 claims
- 2382US9561912B2Belt tracking system, multi-roller assembly and image forming apparatus employing sameHOZUMI YOSHIKI·Filed 2016·Granted Feb 7, 2017·5 cites·15 claims
- 2482US6983121B2Image forming apparatus, image transferring device and recording medium conveying methodRICOH KK·Filed 2003·Granted Jan 3, 2006·16 cites·18 claims
- 2580US9145258B2Belt positioning system, multi-roller assembly and image forming apparatus employing sameASAOKA AKIRA·Filed 2013·Granted Sep 29, 2015·2 cites·19 claims
- 2674US9260248B2Belt positioning system, multi-roller assembly and image forming apparatus employing sameASAOKA AKIRA·Filed 2015·Granted Feb 16, 2016·1 cites·12 claims
- 2774US7742729B2Transfer device, image forming apparatus and method for evaluating electric propertyRICOH KK·Filed 2007·Granted Jun 22, 2010·4 cites·18 claims
- 2873US8014708B2Belt member, transfer unit incorporating same, image forming apparatus incorporating same, and method of evaluating sameRICOH CO LTD·Filed 2008·Granted Sep 6, 2011·4 cites·13 claims
- 2969US7953355B2Endless belt member, transfer unit incorporating same, and image forming apparatus incorporating sameRICOH CO LTD·Filed 2009·Granted May 31, 2011·3 cites·5 claims
- 3063US8944243B2Belt tracking system, multi-roller assembly and image forming apparatus employing sameHOZUMI YOSHIKI·Filed 2013·Granted Feb 3, 2015·3 cites·14 claims
- 3162US7684741B2Image forming apparatusRICOH KK·Filed 2007·Granted Mar 23, 2010·2 cites·6 claims
- 3259US9376257B2Belt tracking system, multi-roller assembly and image forming apparatus employing sameHOZUMI YOSHIKI·Filed 2013·Granted Jun 28, 2016·0 cites·15 claims
- 3341US7860438B2Image forming apparatus using toner including an external additive at an additive burial rate of not less than 40 percentRICOH CO LTD·Filed 2007·Granted Dec 28, 2010·0 cites·9 claims
- 3440US7809314B2Image forming apparatus capable of preventing generation of residual images and transfer failureRICOH KK·Filed 2006·Granted Oct 5, 2010·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →