Inventor · disambiguated record
Tetsuo Yamanaka
Also filed as: YAMANAKA TETSUO
43 granted patents·2 pending applications·1,656 citations·filing 1992–2009
99Inventor score
Top patents by PatentIndex Score
45 records- 0197US6714224B2Method and apparatus for image forming capable of effectively performing color image position adjustmentRICOH KK·Filed 2002·Granted Mar 30, 2004·61 cites·19 claims
- 0297US5482265ASheet feeder for an image forming apparatusRICOH KK·Filed 1994·Granted Jan 9, 1996·91 cites·11 claims
- 0396US5617191AToner conveyor roller and image forming apparatus having the sameRICOH KK·Filed 1995·Granted Apr 1, 1997·84 cites·11 claims
- 0495US6033818ADeveloping device for an image forming apparatusRICOH KK·Filed 1998·Granted Mar 7, 2000·53 cites·9 claims
- 0595US5845183ADeveloping device for an image forming apparatusRICOH KK·Filed 1997·Granted Dec 1, 1998·52 cites·9 claims
- 0695US5708942ADeveloping device for an image forming apparatusRICOH KK·Filed 1996·Granted Jan 13, 1998·53 cites·4 claims
- 0795US5625441ADeveloping device for an image forming apparatusRICOH KK·Filed 1996·Granted Apr 29, 1997·54 cites·9 claims
- 0894US6903759B2Method and apparatus for image forming capable of effectively performing color image position adjustmentRICOH KK·Filed 2003·Granted Jun 7, 2005·32 cites·12 claims
- 0994US5826144ADeveloping device for an electrophotographic recording apparatus including bias control of a toner supplying rollerRICOH KK·Filed 1996·Granted Oct 20, 1998·68 cites·7 claims
- 1094US5489747ADeveloping device for an image forming apparatusRICOH KK·Filed 1995·Granted Feb 6, 1996·73 cites·3 claims
- 1193US5697026ADeveloping device having the lengths of two toner transporting rollers and an image bearing member in specific relationshipsRICOH KK·Filed 1995·Granted Dec 9, 1997·62 cites·19 claims
- 1293US5625440ADeveloping device having seals between a toner transport roller and the toner hopper which prevent toner leakage and scatteringRICOH KK·Filed 1995·Granted Apr 29, 1997·64 cites·9 claims
- 1392US6212343B1Developing device, process cartridge and image forming apparatus that prevent toner leakageRICOH KK·Filed 1999·Granted Apr 3, 2001·93 cites·32 claims
- 1492US6163666AProcess cartridge and an image forming apparatus using the same process cartridge and a method of manufacturing the same process cartridgeRICOH KK·Filed 1999·Granted Dec 19, 2000·81 cites·12 claims
- 1592US5768665AImage forming apparatus with bias control to prevent undesirable toner depositionRICOH KK·Filed 1996·Granted Jun 16, 1998·58 cites·14 claims
- 1692US5666625ADevice for electrostatically developing a latent image on an image carrierRICOH KK·Filed 1995·Granted Sep 9, 1997·62 cites·4 claims
- 1791US6920303B2Color offset detecting apparatus and methodRICOH KK·Filed 2003·Granted Jul 19, 2005·36 cites·6 claims
- 1891US5879752AMethod of coating a toner conveyor rollerRICOH KK·Filed 1996·Granted Mar 9, 1999·62 cites·18 claims
- 1991US5689782ADeveloping apparatus for electronic photographic recording equipment, having two developer transfer rollersRICOH KK·Filed 1995·Granted Nov 18, 1997·64 cites·10 claims
- 2091US5625438AToner, and devices for electrostatically depositing a uniform application thereofRICOH KK·Filed 1995·Granted Apr 29, 1997·40 cites·8 claims
- 2191US5486909ADeveloping device for an image forming apparatusRICOH KK·Filed 1995·Granted Jan 23, 1996·56 cites·2 claims
- 2290US5552870ADeveloping device for an image forming apparatusRICOH KK·Filed 1994·Granted Sep 3, 1996·39 cites·17 claims
- 2389US7664407B2Method and apparatus for image forming capable of effectively performing color image position adjustmentRICOH KK·Filed 2009·Granted Feb 16, 2010·6 cites·7 claims
- 2489US7505697B2Method and apparatus for image forming capable of effectively performing color image position adjustmentRICOH KK·Filed 2008·Granted Mar 17, 2009·6 cites·7 claims
- 2589US5897243AElectrophotographic recording apparatus configured to switch a bias voltage in a developing unitRICOH KK·Filed 1996·Granted Apr 27, 1999·49 cites·18 claims
- 2688US6829465B2Method and apparatus for image forming capable of effectively performing color displacement detectionRICOH KK·Filed 2002·Granted Dec 7, 2004·38 cites·47 claims
- 2788US5212521ADeveloping unit housing with toner seals for image recording apparatusRICOH KK·Filed 1992·Granted May 18, 1993·41 cites·15 claims
- 2887US5930561AProcess cartridge and image-formation device suitable for miniaturizationRICOH KK·Filed 1998·Granted Jul 27, 1999·44 cites·31 claims
- 2982US6708017B2Image forming apparatus including controller to start driving movable body after image carrierRICOH KK·Filed 2002·Granted Mar 16, 2004·17 cites·11 claims
- 3082USD433441SToner cartridgeRICOH CO LTD·Filed 1998·Granted Nov 7, 2000·25 cites·1 claims
- 3180US5717981ADeveloping device for electrophotographic image forming apparatusRICOH KK·Filed 1996·Granted Feb 10, 1998·29 cites·6 claims
- 3279US7551867B2Image forming apparatus including controller driving image carriersRICOH KK·Filed 2008·Granted Jun 23, 2009·4 cites·6 claims
- 3378US7376363B2Method and apparatus for image forming capable of effectively performing color image position adjustmentRICOH KK·Filed 2005·Granted May 20, 2008·3 cites·6 claims
- 3477US8190039B2Image forming apparatus and control systemIIDA MASAHARU·Filed 2008·Granted May 29, 2012·8 cites·19 claims
- 3576US6934498B2Color image forming apparatus, tandem type color image forming apparatus, and process cartridge for color image forming apparatusRICOH KK·Filed 2003·Granted Aug 23, 2005·15 cites·19 claims
- 3672US7136600B2Image forming apparatus including controller driving image carriersRICOH KK·Filed 2003·Granted Nov 14, 2006·10 cites·12 claims
- 3769US5610693ADeveloping device for an image forming apparatusRICOH KK·Filed 1994·Granted Mar 11, 1997·16 cites·35 claims
- 3867US7386259B2Image forming apparatus including controller driving image carriersRICOH KK·Filed 2006·Granted Jun 10, 2008·2 cites·12 claims
- 3966US7853159B2Method and apparatus for image forming capable of effectively performing color image position adjustmentRICOH CO LTD·Filed 2009·Granted Dec 14, 2010·1 cites·16 claims
- 4054US6889029B2Image forming apparatus including driving means disposed downstream of nipRICOH KK·Filed 2003·Granted May 3, 2005·4 cites·6 claims
- 4149US7787787B2Image forming apparatus including controller driving image carriersRICOH KK·Filed 2009·Granted Aug 31, 2010·0 cites·6 claims
- 4244US7700802B2Method of separating stereoisomers of dicarboxylic acid having norbornene or norbornane structure, or derivative thereofHITACHI CHEMICAL CO LTD·Filed 2004·Granted Apr 20, 2010·0 cites·17 claims
- 4343US2004220342A1Low-hygroscopicity low-birefringence resin compositions, molding material, sheet or film obtained therefrom, and optical partFiled 2004·Application pending·0 cites
- 4442US2006104188A1Film for optical component, winding laminate of film, optical component, and optical discYAMASHITA YUKIHIKO·Filed 2002·Application pending·0 cites
- 4536US6900273B1Low-hygroscopicity low-birefringence resin compositions, molding material obtained therefrom, sheet or film, and optical partHITACHI CHEMICAL CO LTD·Filed 2000·Granted May 31, 2005·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →