Inventor · disambiguated record
Norimasa Sohmiya
Also filed as: SOHMIYA NORIMASA
17 granted patents·1 pending application·482 citations·filing 1976–2007
95Inventor score
Top patents by PatentIndex Score
18 records- 0198US5394231AImage forming apparatus capable of forming an erasable imageRICOH KK·Filed 1993·Granted Feb 28, 1995·105 cites·10 claims
- 0295US6801742B1Method and apparatus for producing duplex prints and image forming system using the sameRICOH KK·Filed 2002·Granted Oct 5, 2004·81 cites·85 claims
- 0390US5006896AImage density control method for an image forming apparatusRICOH KK·Filed 1989·Granted Apr 9, 1991·37 cites·9 claims
- 0488US5559590AImage forming apparatus which cleans a transfer belt by applying a bias voltageRICOH KK·Filed 1995·Granted Sep 24, 1996·47 cites·24 claims
- 0588US5499078ACharge roller and image forming apparatus using the sameRICOH KK·Filed 1994·Granted Mar 12, 1996·35 cites·24 claims
- 0685US6574448B2Image forming apparatus and method for improving image quality of double sided printsRICOH KK·Filed 2001·Granted Jun 3, 2003·24 cites·145 claims
- 0785US5038175AImage density control methodRICOH KK·Filed 1990·Granted Aug 6, 1991·33 cites·5 claims
- 0881US7884840B2Image forming method and apparatus for transfer and fixing image with one processRICOH CO LTD·Filed 2006·Granted Feb 8, 2011·7 cites·8 claims
- 0979US4962394AToner density control device for an image recorderRICOH KK·Filed 1989·Granted Oct 9, 1990·22 cites·7 claims
- 1077US7295795B2Image forming apparatus and an impurity collecting device associated with registration rollersRICOH KK·Filed 2005·Granted Nov 13, 2007·4 cites·1 claims
- 1175US7039349B2Image forming apparatus transferring toner images to both surfaces of a recording mediumRICOH KK·Filed 2003·Granted May 2, 2006·15 cites·96 claims
- 1275US7003251B2Image forming method having transfer temperature difference and apparatus for the sameRICOH KK·Filed 2003·Granted Feb 21, 2006·12 cites·21 claims
- 1371US6983117B2Image forming apparatus configured for double sided printingRICOH KK·Filed 2003·Granted Jan 3, 2006·12 cites·55 claims
- 1466US7054587B2Image forming apparatus for recording on two sides in a single passRICOH KK·Filed 2004·Granted May 30, 2006·10 cites·63 claims
- 1565US4032463ALiquid developer for use in electrostatic photography and preparation of sameRICOH KK·Filed 1976·Granted Jun 28, 1977·19 cites·5 claims
- 1661US5570162ACharge depositing member and image forming apparatus using the sameRICOH KK·Filed 1995·Granted Oct 29, 1996·14 cites·7 claims
- 1754US7197269B2Method, system and apparatus for transferring toner images to both sides of a recording mediumRICOH KK·Filed 2003·Granted Mar 27, 2007·5 cites·19 claims
- 1834US2008124106A1Optical bias control method of insulating toner and image forming apparatusENOKI SHIGEKAZU·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →