Inventor · disambiguated record
Noboru Sawayama
Also filed as: SAWAYAMA NOBORU
38 granted patents·2 pending applications·1,043 citations·filing 1983–2008
98Inventor score
Top patents by PatentIndex Score
40 records- 0198US7251420B2Method and apparatus for image forming capable of effectively detecting toner densityRICOH KK·Filed 2005·Granted Jul 31, 2007·42 cites·30 claims
- 0298US6249304B1Image forming apparatus and image forming method for forming color images by gray-level image forming techniqueRICOH KK·Filed 1997·Granted Jun 19, 2001·141 cites·19 claims
- 0397US7228081B2Method and apparatus for image forming capable of controlling image-forming process conditionsRICOH KK·Filed 2005·Granted Jun 5, 2007·37 cites·81 claims
- 0496US7260335B2Image-information detecting device and image forming apparatusRICOH KK·Filed 2005·Granted Aug 21, 2007·24 cites·19 claims
- 0594US5384628ADeveloping device for image forming equipmentRICOH KK·Filed 1993·Granted Jan 24, 1995·67 cites·33 claims
- 0694US5270783AImage forming equipment having improved toner sensingRICOH KK·Filed 1992·Granted Dec 14, 1993·66 cites·9 claims
- 0793US5761570AColor toner density sensor and image forming apparatus using the sameRICOH KK·Filed 1997·Granted Jun 2, 1998·52 cites·14 claims
- 0893US5227842AElectrophotographic image forming apparatus which controls developer bias based on image irregularityRICOH KK·Filed 1992·Granted Jul 13, 1993·62 cites·18 claims
- 0992US7992953B2Image forming apparatus and method of correcting deviation of shooting positionRICOH CO LTD·Filed 2008·Granted Aug 9, 2011·14 cites·10 claims
- 1092US5630195AColor toner density sensor and image forming apparatus using the sameRICOH KK·Filed 1996·Granted May 13, 1997·51 cites·6 claims
- 1191US7914096B2Image forming apparatus, landing position shift correction method, and landing position shift correction sheet memberRICOH CO LTD·Filed 2008·Granted Mar 29, 2011·13 cites·10 claims
- 1290US7655936B2Optical sensor and image forming apparatus that processes specular reflection lightRICOH KK·Filed 2008·Granted Feb 2, 2010·28 cites·7 claims
- 1390US4885223AMethod and apparatus for developing electrostatic latent imageRICOH KK·Filed 1987·Granted Dec 5, 1989·35 cites·21 claims
- 1489US6415129B2Electrophotographic image forming apparatus, cleaning unit for the same and brush roller for the sameRICOH KK·Filed 2001·Granted Jul 2, 2002·30 cites·32 claims
- 1587US4592653ADry process developing apparatusRICOH KK·Filed 1983·Granted Jun 3, 1986·31 cites·21 claims
- 1685US7551866B2Image forming method and apparatus with improved conversion capability of amount of toner adhesionRICOH KK·Filed 2006·Granted Jun 23, 2009·8 cites·9 claims
- 1785US5298944ATesting image density to control toner concentration and dynamic range in a digital copierRICOH KK·Filed 1993·Granted Mar 29, 1994·32 cites·15 claims
- 1881US8186799B2Image forming apparatus and impact position displacement correction methodMORINO TETSU·Filed 2008·Granted May 29, 2012·6 cites·11 claims
- 1981US7438379B2Alignment pattern detecting sensor, method of determining acceptance width of the alignment pattern detecting sensor, method of forming alignment pattern, and image forming apparatusRICOH KK·Filed 2006·Granted Oct 21, 2008·5 cites·8 claims
- 2080US6798996B2Image forming apparatusRICOH KK·Filed 2003·Granted Sep 28, 2004·22 cites·5 claims
- 2179US5424809AImage forming method and apparatus for the sameRICOH COMAPANY LTD·Filed 1993·Granted Jun 13, 1995·31 cites·11 claims
- 2278US7055928B2Alignment pattern detecting sensor, method of determining acceptance width of the alignment pattern detecting sensor, method of forming alignment pattern, and image forming apparatusRICOH KK·Filed 2003·Granted Jun 6, 2006·13 cites·36 claims
- 2378US5293198AImage forming apparatus for controlling the dynamic range of an imageRICOH KK·Filed 1991·Granted Mar 8, 1994·24 cites·9 claims
- 2477US4897693AMagnetic particle carrying apparatusRICOH KK·Filed 1987·Granted Jan 30, 1990·21 cites·10 claims
- 2577US4855783AAgitating roller and restricting member for a developing deviceRICOH KK·Filed 1987·Granted Aug 8, 1989·20 cites·8 claims
- 2676US5237369AColor image forming equipment responsive to changes in ambient conditionsRICOH KK·Filed 1991·Granted Aug 17, 1993·22 cites·11 claims
- 2774US8157342B2Liquid-jet device, image forming apparatus, and method for adjusting landing positions of liquid dropletsMORINO TETSU·Filed 2008·Granted Apr 17, 2012·4 cites·19 claims
- 2874US8066348B2Image forming apparatus and defective nozzle detection methodHIROTA TETSURO·Filed 2008·Granted Nov 29, 2011·4 cites·18 claims
- 2974US6342910B1Image forming apparatus to form smooth image with inconspicuous granularityRICOH KK·Filed 2000·Granted Jan 29, 2002·14 cites·27 claims
- 3074US5627649AMethod and device for correcting a position for writing an imageRICOH KK·Filed 1993·Granted May 6, 1997·44 cites·18 claims
- 3171US5157440AToner density sensing device for image forming equipmentRICOH KK·Filed 1991·Granted Oct 20, 1992·18 cites·12 claims
- 3264US5729353AMethod and device for correcting a position for writing an image on a transport beltRICOH KK·Filed 1997·Granted Mar 17, 1998·24 cites·9 claims
- 3360US6665503B2Permeability detection apparatus, image forming apparatus or digital copier using the same, toner concentration detection apparatus, and electric conductivity detection apparatusRICOH KK·Filed 2002·Granted Dec 16, 2003·7 cites·15 claims
- 3458US4814821AImage-forming deviceRICOH KK·Filed 1987·Granted Mar 21, 1989·10 cites·4 claims
- 3553US4453493AToner recirculating and agitating device for dry process developing apparatusRICOH KK·Filed 1983·Granted Jun 12, 1984·8 cites·5 claims
- 3649US4875079AToner density control for multicolor electrophotographic copierRICOH KK·Filed 1988·Granted Oct 17, 1989·8 cites·14 claims
- 3745US2004251435A1Optical sensor and image forming apparatusFiled 2004·Application pending·0 cites
- 3843US6771389B1Electrophotographic image formation apparatusRICOH KK·Filed 2000·Granted Aug 3, 2004·2 cites·19 claims
- 3942US2008231649A1Image forming apparatus, method for correcting displacement of landing positionsKAWABATA KENICHI·Filed 2008·Application pending·0 cites
- 4035US4901113AImage-forming deviceRICOH KK·Filed 1988·Granted Feb 13, 1990·3 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →