Inventor · disambiguated record
Sadao Takahashi
Also filed as: SUDO TOSHIO · TAKAHASHI SADAO
73 granted patents·9 pending applications·1,959 citations·filing 1975–2023
99Inventor score
Top patents by PatentIndex Score
82 records- 0198US5585896AImage forming apparatus with a contact member contacting an image carrierRICOH KK·Filed 1994·Granted Dec 17, 1996·311 cites·16 claims
- 0298US5394231AImage forming apparatus capable of forming an erasable imageRICOH KK·Filed 1993·Granted Feb 28, 1995·105 cites·10 claims
- 0396US4634264APhotosensitive member of recording apparatusRICOH KK·Filed 1984·Granted Jan 6, 1987·56 cites·4 claims
- 0493US7489415B2Document processing systemRICOH KK·Filed 2004·Granted Feb 10, 2009·114 cites·29 claims
- 0593US4791454ARemovable photoconductive element unit for image-forming apparatusRICOH KK·Filed 1987·Granted Dec 13, 1988·49 cites·15 claims
- 0692US6898329B1Image binarization apparatus, image binarization method, image pickup apparatus, image pickup method, and a computer productRICOH KK·Filed 2000·Granted May 24, 2005·54 cites·64 claims
- 0791US6651894B2Imaging method, imaging apparatus, and image information management systemRICOH KK·Filed 2001·Granted Nov 25, 2003·78 cites·28 claims
- 0891US5574538AMethod and apparatus for removing image forming substance from image holding member forming processing situation markRICOH KK·Filed 1995·Granted Nov 12, 1996·55 cites·20 claims
- 0991US5572293AMethod of and system for cleaning a charge inducing memberRICOH KK·Filed 1994·Granted Nov 5, 1996·42 cites·53 claims
- 1091US5557373ACleaning system for charging drum of an image forming apparatusRICOH KK·Filed 1994·Granted Sep 17, 1996·41 cites·3 claims
- 1191US4163201AElastic surface wave deviceTOKYO SHIBAURA ELECTRIC CO·Filed 1977·Granted Jul 31, 1979·31 cites·4 claims
- 1290US8825682B2Architecture for mixed media reality retrieval of locations and registration of imagesKISHI HIDENOBU·Filed 2008·Granted Sep 2, 2014·37 cites·12 claims
- 1389US5911004AImage processing apparatus for discriminating image characteristics using image signal information obtained in an image scanning operationRICOH KK·Filed 1996·Granted Jun 8, 1999·117 cites·14 claims
- 1488USD286541SPhotoconductor unit for copying machineRICOH CO LTD·Filed 1984·Granted Nov 4, 1986·23 cites·1 claims
- 1586US6634559B2Data sheet and information management system using data sheetRICOH KK·Filed 2001·Granted Oct 21, 2003·43 cites·40 claims
- 1685US9330320B2Object detection apparatus, object detection method, object detection program and device control system for moveable apparatusTAKAHASHI SADAO·Filed 2015·Granted May 3, 2016·9 cites·10 claims
- 1784USRE37645EMethod and apparatus for removing image forming substance from image holding member forming processing situation markRICOH KK·Filed 1998·Granted Apr 9, 2002·34 cites·68 claims
- 1884US4884396ADesulfurizing agent and process for treating hydrogen sulfide containing gas, coal gasification system and power generation system based on coal gasification using the desulfurizing agentHITACHI LTD·Filed 1988·Granted Dec 5, 1989·35 cites·14 claims
- 1983US10755116B2Image processing apparatus, imaging apparatus, and device control systemRICOH CO LTD·Filed 2018·Granted Aug 25, 2020·5 cites·7 claims
- 2083US5605777AMethod and apparatus for regenerating image holding memberRICOH KK·Filed 1995·Granted Feb 25, 1997·31 cites·20 claims
- 2182US7787712B2Electronic document creating apparatusRICOH KK·Filed 2006·Granted Aug 31, 2010·19 cites·12 claims
- 2282US7623727B2Image binarization apparatus, image binarization method, image pickup apparatus, image pickup method, and a computer productRICOH KK·Filed 2005·Granted Nov 24, 2009·6 cites·36 claims
- 2382US6744916B1Image processing apparatus and method for interpolating missing pixelsRICOH KK·Filed 1999·Granted Jun 1, 2004·73 cites·52 claims
- 2481US6935565B2Imaging method, imaging apparatus, and image information management systemRICOH KK·Filed 2003·Granted Aug 30, 2005·30 cites·6 claims
- 2580US8760558B2Compound lens imaging deviceMORITA NOBUHIRO·Filed 2010·Granted Jun 24, 2014·5 cites·8 claims
- 2679US10672141B2Device, method, system and computer-readable medium for determining collision target object rejectionRICOH CO LTD·Filed 2018·Granted Jun 2, 2020·3 cites·20 claims
- 2779US5825937ASpatial-filtering unit for performing adaptive edge-enhancement processRICOH KK·Filed 1997·Granted Oct 20, 1998·70 cites·12 claims
- 2878US5610691AImage forming apparatus having a contact charging member and a cleaning memberRICOH KK·Filed 1995·Granted Mar 11, 1997·29 cites·7 claims
- 2977US5321483ACleaning device for image forming equipmentRICOH KK·Filed 1992·Granted Jun 14, 1994·23 cites·6 claims
- 3076US6948654B2Data sheet and information management system using data sheetRICOH KK·Filed 2003·Granted Sep 27, 2005·21 cites·29 claims
- 3176US5083020AMass spectrometerHITACHI LTD·Filed 1986·Granted Jan 21, 1992·20 cites·4 claims
- 3275US5547793AMethod for using image support regeneratively and tool for forming image on image supportRICOH KK·Filed 1994·Granted Aug 20, 1996·21 cites·3 claims
- 3374US6959866B22-Dimensional code pattern, 2-dimensional code pattern supporting medium, 2-dimensional code pattern generating method, and 2-dimensional code reading apparatus and methodRICOH KK·Filed 2003·Granted Nov 1, 2005·18 cites·3 claims
- 3474US5805954AImage forming apparatus that detects environmental conditionsRICOH KK·Filed 1996·Granted Sep 8, 1998·23 cites·10 claims
- 3574US5782032ACoal gasification furnace with a slag tap hole of specific shapeHITACHI LTD·Filed 1996·Granted Jul 21, 1998·32 cites·8 claims
- 3674US4563076AImaging apparatusRICOH KK·Filed 1984·Granted Jan 7, 1986·17 cites·8 claims
- 3773US4412848AHeat recovery method from gasified products of hydrocarbonAGENCY IND SCIENCE TECHN·Filed 1982·Granted Nov 1, 1983·23 cites·2 claims
- 3872US5753400AMethod for repeatedly using image holding memberRICOH KK·Filed 1997·Granted May 19, 1998·19 cites·8 claims
- 3971US11054245B2Image processing apparatus, device control system, imaging apparatus, image processing method, and recording mediumRICOH CO LTD·Filed 2018·Granted Jul 6, 2021·2 cites·9 claims
- 4069US8593536B2Image pickup apparatus with calibration functionMARUYAMA GO·Filed 2011·Granted Nov 26, 2013·2 cites·5 claims
- 4169US7982141B2Coordinate detecting device, writing instrument, and coordinate inputting systemRICOH CO LTD·Filed 2007·Granted Jul 19, 2011·5 cites·10 claims
- 4269US7712664B22-dimensional code pattern, 2-dimensional code pattern supporting medium, 2-dimensional code pattern generating method, and 2-dimensional code reading apparatus and methodRICOH KK·Filed 2005·Granted May 11, 2010·4 cites·16 claims
- 4369US6097914AImage bearing member and method of manufacturing the member and image forming apparatus using the memberRICOH KK·Filed 1998·Granted Aug 1, 2000·23 cites·26 claims
- 4469US6095164AMethod and apparatus for removing image forming substance from image holding memberRICOH KK·Filed 1994·Granted Aug 1, 2000·26 cites·16 claims
- 4567US10520309B2Object recognition device, object recognition method, equipment control system, and distance image generation deviceRICOH CO LTD·Filed 2017·Granted Dec 31, 2019·1 cites·20 claims
- 4663US4746467AProcess for producing microcapsulesJUJO PAPER CO LTD·Filed 1986·Granted May 24, 1988·17 cites·10 claims
- 4762US10762656B2Information processing device, imaging device, apparatus control system, information processing method, and computer program productMOTOHASHI NAOKI·Filed 2017·Granted Sep 1, 2020·1 cites·10 claims
- 4862US6047758AMethod for repeatedly using image holding memberRICOH KK·Filed 1997·Granted Apr 11, 2000·13 cites·8 claims
- 4960USRE36963EMethod and apparatus for regenerating image holding memberRICOH KK·Filed 1999·Granted Nov 21, 2000·12 cites·21 claims
- 5059US4404620ALuminaireTOSHIBA ELECTRIC EQUIP·Filed 1980·Granted Sep 13, 1983·26 cites·30 claims
Showing the top 50 of 82 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →