Inventor · disambiguated record
Kazunori Bannai
Also filed as: BANNAI KAZUNORI
55 granted patents·1 pending application·1,346 citations·filing 1989–2020
99Inventor score
Top patents by PatentIndex Score
56 records- 0197US4933727AColor recording apparatusRICOH KK·Filed 1989·Granted Jun 12, 1990·72 cites·9 claims
- 0296US5316282ASheet feeding and separating device for image forming equipmentRICOH KK·Filed 1993·Granted May 31, 1994·63 cites·2 claims
- 0395US5297376AFinisher for an image forming apparatusRICOH KK·Filed 1992·Granted Mar 29, 1994·54 cites·34 claims
- 0495US5219154ASheet feeding and separating device for image forming equipmentRICOH KK·Filed 1991·Granted Jun 15, 1993·61 cites·4 claims
- 0595US5121170ADevice for transporting sheet members using an alternating voltageRICOH KK·Filed 1991·Granted Jun 9, 1992·72 cites·25 claims
- 0694US5270783AImage forming equipment having improved toner sensingRICOH KK·Filed 1992·Granted Dec 14, 1993·66 cites·9 claims
- 0793US5227842AElectrophotographic image forming apparatus which controls developer bias based on image irregularityRICOH KK·Filed 1992·Granted Jul 13, 1993·62 cites·18 claims
- 0892US8346106B2Fixing device and image forming apparatus using same having a second heater outside the recording medium passing areaRICOH CO LTD·Filed 2010·Granted Jan 1, 2013·8 cites·13 claims
- 0992US5160969AImage forming apparatus having a separate black developer stored for a color imageRICOH KK·Filed 1991·Granted Nov 3, 1992·52 cites·11 claims
- 1090US7436425B2Optical writing apparatus and image forming apparatusRICOH KK·Filed 2005·Granted Oct 14, 2008·15 cites·9 claims
- 1190US6786590B2Recording-medium conveying device conveying a recording medium on a conveying belt charged with a positive charge and a negative charge alternatelyRICOH KK·Filed 2002·Granted Sep 7, 2004·35 cites·72 claims
- 1288US8428498B2Fixing device and image forming apparatus including sameFUJIWARA HIDEHIKO·Filed 2009·Granted Apr 23, 2013·11 cites·25 claims
- 1388US5255904AFeeder or image forming apparatusRICOH KK·Filed 1991·Granted Oct 26, 1993·35 cites·24 claims
- 1486US7450146B2Optical scanning device including plural light shielding units provided at different heights and image forming apparatusRICOH KK·Filed 2006·Granted Nov 11, 2008·10 cites·10 claims
- 1586US7215349B2Method and apparatus for image forming capable of effectively avoiding an adverse temperature effect to an optical scanning systemRICOH KK·Filed 2004·Granted May 8, 2007·21 cites·58 claims
- 1685US8195058B2Toner fixing device with light control mirrors and image forming apparatus incorporating sameTAKENAKA KOHTA·Filed 2010·Granted Jun 5, 2012·4 cites·13 claims
- 1785US5471277ABook document reading device having a page turning capabilityRICOH KK·Filed 1994·Granted Nov 28, 1995·67 cites·24 claims
- 1884US7697184B2Optical scanning device and image forming apparatusRICOH KK·Filed 2007·Granted Apr 13, 2010·13 cites·18 claims
- 1984US7619643B2Method and apparatus for image forming capable of effectively avoiding an adverse temperature effect to an optical scanning systemRICOH KK·Filed 2007·Granted Nov 17, 2009·6 cites·18 claims
- 2084US5610720ABook document reading device having a page turning capabilityRICOH KK·Filed 1994·Granted Mar 11, 1997·65 cites·4 claims
- 2183US7916161B2Image forming apparatusRICOH CO LTD·Filed 2007·Granted Mar 29, 2011·8 cites·13 claims
- 2282US5390033AMethod and apparatus for turning over pages of book-originalRICOH KK·Filed 1991·Granted Feb 14, 1995·49 cites·20 claims
- 2381US7860442B2Image fixing device having carbon lamp and reflectorRICOH CO LTD·Filed 2007·Granted Dec 28, 2010·6 cites·19 claims
- 2481US6697092B2Color image forming apparatus with color image shift correctionRICOH KK·Filed 2002·Granted Feb 24, 2004·20 cites·9 claims
- 2581US5325213AImage reader and book document reader with a page turning capability for an image forming apparatusRICOH KK·Filed 1992·Granted Jun 28, 1994·54 cites·19 claims
- 2680US7986334B2Image forming apparatus, optical writing device, and optical writing methodRICOH CO LTD·Filed 2008·Granted Jul 26, 2011·6 cites·21 claims
- 2780US6891559B1Optical scanning apparatus and an image forming apparatusRICOH KK·Filed 2000·Granted May 10, 2005·19 cites·20 claims
- 2880US5847845ABook document reading deviceRICOH KK·Filed 1995·Granted Dec 8, 1998·58 cites·7 claims
- 2980US5583662ABook document reading device having a page turning capabilityRICOH KK·Filed 1994·Granted Dec 10, 1996·49 cites·39 claims
- 3080US5224693AMultistage paper feeding/conveying apparatus and method that uses electro static forcesRICOH KK·Filed 1991·Granted Jul 6, 1993·26 cites·9 claims
- 3179US6836633B2Optical scanning device and image forming apparatus including the optical scanning deviceRICOH KK·Filed 2002·Granted Dec 28, 2004·17 cites·34 claims
- 3279US5689348ABook document reading deviceRICOH KK·Filed 1995·Granted Nov 18, 1997·25 cites·6 claims
- 3376US5682227ARoyalty accounting system for a book copierRICOH KK·Filed 1994·Granted Oct 28, 1997·41 cites·42 claims
- 3476US5315322AImage forming apparatus with anti-banding implementationRICOH KK·Filed 1993·Granted May 24, 1994·40 cites·6 claims
- 3574US8428480B2Fixing device, image forming apparatus incorporating same, and method of dimensioning fixing deviceTAKENAKA KOHTA·Filed 2010·Granted Apr 23, 2013·2 cites·8 claims
- 3673US8752955B2Inkjet printerKOBAYASHI SHUN·Filed 2012·Granted Jun 17, 2014·2 cites·13 claims
- 3772US7589756B2Optical scanning device, image forming apparatus, optical scanning correcting method, and image forming methodRICOH KK·Filed 2006·Granted Sep 15, 2009·4 cites·14 claims
- 3872US7050731B2Image forming apparatus including transfer belt having uneven thickness and position shift detection and correction methodRICOH KK·Filed 2004·Granted May 23, 2006·12 cites·33 claims
- 3970US7705872B2Optical writing device and image forming apparatusRICOH KK·Filed 2008·Granted Apr 27, 2010·5 cites·20 claims
- 4068US9030519B2Optical writing device and image forming apparatusNARITA SUSUMU·Filed 2014·Granted May 12, 2015·1 cites·7 claims
- 4167US6873346B2Image forming apparatusRICOH KK·Filed 2003·Granted Mar 29, 2005·11 cites·9 claims
- 4267US6075624AMethod and apparatus for turning over pages of book-originalRICOH KK·Filed 1994·Granted Jun 13, 2000·22 cites·43 claims
- 4366US5583607AImage forming apparatus having book reading and page turning capabilitiesRICOH KK·Filed 1996·Granted Dec 10, 1996·33 cites·13 claims
- 4464US7907869B2Charging brush unit, charging device, and image forming apparatusRICOH CO LTD·Filed 2008·Granted Mar 15, 2011·2 cites·20 claims
- 4564US7264347B2Recording-medium conveying device conveying a recording medium on a conveying belt charged with a positive charge and a negative charge alternatelyRICOH KK·Filed 2004·Granted Sep 4, 2007·8 cites·14 claims
- 4664US5055860AImage forming apparatusRICOH KK·Filed 1990·Granted Oct 8, 1991·22 cites·4 claims
- 4758US9772809B2Printed matter delivery system, image forming apparatus, and printed matter delivery apparatusBANNAI KAZUNORI·Filed 2016·Granted Sep 26, 2017·1 cites·12 claims
- 4855US8373736B2Optical scanning device and image forming apparatusRICOH CO LTD·Filed 2009·Granted Feb 12, 2013·1 cites·14 claims
- 4954US7880760B2Optical writing device and image forming apparatusRICOH CO LTD·Filed 2009·Granted Feb 1, 2011·1 cites·10 claims
- 5054US4987428AColor image forming apparatusRICOH KK·Filed 1989·Granted Jan 22, 1991·9 cites·6 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →