Inventor · disambiguated record
Toshio Sakai
Also filed as: SAKAI TOSHIO
55 granted patents·9 pending applications·1,219 citations·filing 1982–2020
99Inventor score
Top patents by PatentIndex Score
64 records- 0197US6617051B1Organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 1999·Granted Sep 9, 2003·81 cites·32 claims
- 0295US7825946B2Image forming apparatusBROTHER IND LTD·Filed 2008·Granted Nov 2, 2010·22 cites·12 claims
- 0394US8367222B2Organic electroluminescent deviceIDEMITSU KOSAN CO·Filed 2009·Granted Feb 5, 2013·23 cites·19 claims
- 0494US6633121B2Organic electroluminescence display device and method of manufacturing sameIDEMITSU KOSAN CO·Filed 2001·Granted Oct 14, 2003·87 cites·17 claims
- 0594US5717848AMethod and apparatus for generating object motion path, method of setting object display attribute, and computer graphics systemHITACHI LTD·Filed 1994·Granted Feb 10, 1998·170 cites·21 claims
- 0693US5594844AThree dimensional view using ray tracing through voxels subdivided numerically using object based parametersHITACHI LTD·Filed 1994·Granted Jan 14, 1997·131 cites·9 claims
- 0789US6486601B1Organic luminescence device with reduced leakage currentIDEMITSU KOSAN CO·Filed 1999·Granted Nov 26, 2002·223 cites·9 claims
- 0888US9851558B2Light deflectorBROTHER IND LTD·Filed 2015·Granted Dec 26, 2017·4 cites·16 claims
- 0987US7718094B2Preparation of metallic nanoparticlesUNIV NEW YORK STATE RES FOUND·Filed 2005·Granted May 18, 2010·14 cites·6 claims
- 1086US9939566B2Polygon mirror, image forming apparatus, and method for manufacturing a polygon mirrorBROTHER IND LTD·Filed 2016·Granted Apr 10, 2018·3 cites·20 claims
- 1186US5680525AThree-dimensional graphic system with an editor for generating a textrue mapping imageHITACHI LTD·Filed 1992·Granted Oct 21, 1997·87 cites·27 claims
- 1286US4864356AExposure device for image recording apparatusBROTHER IND LTD·Filed 1988·Granted Sep 5, 1989·22 cites·16 claims
- 1385US7312808B2Image forming apparatus and scanning unitBROTHER IND LTD·Filed 2005·Granted Dec 25, 2007·6 cites·14 claims
- 1479US6786789B2Apparatus and method for manufacturing organic EL display deviceIDEMITSU KOSAN CO·Filed 2001·Granted Sep 7, 2004·17 cites·17 claims
- 1578US7414645B2Image forming apparatus with scanning lensBROTHER IND LTD·Filed 2005·Granted Aug 19, 2008·5 cites·17 claims
- 1678US7045950B2Organic electroluminescence device with organic compound layer containing lower than 500 PPM of a halogen-containing compoundIDEMITSU KOSAN CO·Filed 2003·Granted May 16, 2006·14 cites·5 claims
- 1777US8310515B2Exposure apparatus and image forming apparatus provided with the sameYOKOI JUNICHI·Filed 2009·Granted Nov 13, 2012·5 cites·9 claims
- 1877US6214481B1Organic electroluminescent deviceIDEMITSU KOSAN CO·Filed 1997·Granted Apr 10, 2001·17 cites·3 claims
- 1976US8400481B2Image forming apparatusSAKAI TOSHIO·Filed 2009·Granted Mar 19, 2013·6 cites·6 claims
- 2076US7087322B2Organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 2004·Granted Aug 8, 2006·16 cites·14 claims
- 2175US5235835AMethod and apparatus for controlling flatness of strip in a rolling mill using fuzzy reasoningFURUKAWA ALUMINIUM·Filed 1993·Granted Aug 17, 1993·19 cites·20 claims
- 2275US4956662AApparatus for and method of recording color picture imageBROTHER IND LTD·Filed 1988·Granted Sep 11, 1990·14 cites·21 claims
- 2374US9778457B2Light deflector and polygon mirrorBROTHER IND LTD·Filed 2015·Granted Oct 3, 2017·2 cites·17 claims
- 2474US7349166B2Optical member holding device, and optical scanning device provided with the sameBROTHER IND LTD·Filed 2003·Granted Mar 25, 2008·12 cites·67 claims
- 2572US4967227AColor image recording apparatus with mask member registering mechanismBROTHER IND LTD·Filed 1989·Granted Oct 30, 1990·12 cites·18 claims
- 2667US8967712B2Skin for seat back of vehicle seatYASUDA RYO·Filed 2009·Granted Mar 3, 2015·8 cites·5 claims
- 2764US7632164B2Process for producing an organic EL display device using different processing units for each of the manufacturing stagesPANASONIC CORP·Filed 2007·Granted Dec 15, 2009·1 cites·7 claims
- 2864US6531234B1Organic electroluminescence device and method of its manufactureIDEMITSU KOSAN CO·Filed 2000·Granted Mar 11, 2003·19 cites·4 claims
- 2962US8274540B2Image forming apparatus including positioning member for exposure unitTAMARU YASUO·Filed 2009·Granted Sep 25, 2012·2 cites·6 claims
- 3062US7499205B2Optical member holding device, and optical scanning device provided with the sameBROTHER IND LTD·Filed 2006·Granted Mar 3, 2009·2 cites·56 claims
- 3162US6762438B2Organic electroluminescent layer with oligomer hole injection layerIDEMITSU KOSAN CO·Filed 2002·Granted Jul 13, 2004·6 cites·9 claims
- 3262US6489489B2Organic electroluminescent deviceIDEMITSU KOSAN CO·Filed 2001·Granted Dec 3, 2002·2 cites·7 claims
- 3360US6318292B1Clean water system and structure of the systemFiled 1998·Granted Nov 20, 2001·17 cites·17 claims
- 3460US5043759AColor image recording apparatus with light transmissive feed beltBROTHER IND LTD·Filed 1989·Granted Aug 27, 1991·11 cites·23 claims
- 3559US7170662B2Optical lens system, optical scanning apparatus, and image forming apparatusBROTHER IND LTD·Filed 2004·Granted Jan 30, 2007·6 cites·20 claims
- 3658US8289359B2Image forming apparatus and method of manufacturing the sameYOKOI JUNICHI·Filed 2009·Granted Oct 16, 2012·1 cites·21 claims
- 3758US6224966B1Organic electroluminescent deviceIDEMITSU KOSAN CO·Filed 1998·Granted May 1, 2001·52 cites·7 claims
- 3858US5663558AOptical beam scanning unit with slit for producing horizontal synchronizing signalBROTHER IND LTD·Filed 1995·Granted Sep 2, 1997·21 cites·19 claims
- 3957US9387688B2Exposure device and method for producing the sameSUGIYAMA YOSUKE·Filed 2009·Granted Jul 12, 2016·1 cites·30 claims
- 4056US2006159959A1Organic electroluminescence device with organic compound layer containing lower than 500 ppm of a halogen-containing compoundIDEMITSU KOSAN CO·Filed 2006·Application pending·0 cites
- 4154US10451869B2Light deflector and polygon mirrorBROTHER IND LTD·Filed 2017·Granted Oct 22, 2019·0 cites·14 claims
- 4253US10871604B2Display device and image forming apparatusBROTHER IND LTD·Filed 2020·Granted Dec 22, 2020·0 cites·9 claims
- 4353US2006257687A1Organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 2006·Application pending·0 cites
- 4452US10254197B2Optical fiber monitoring systemHITACHI METALS LTD·Filed 2017·Granted Apr 9, 2019·0 cites·9 claims
- 4552US7210979B2Apparatus and method for manufacturing organic EL display deviceIDEMITSU KOSAN CO·Filed 2004·Granted May 1, 2007·2 cites·9 claims
- 4650US6803121B2Organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 2001·Granted Oct 12, 2004·3 cites·6 claims
- 4749US7852541B2Light deflector and light scanning deviceBROTHER IND LTD·Filed 2008·Granted Dec 14, 2010·0 cites·21 claims
- 4849US5589875ATelevision camera having variable lens iris/shutter based on position/rotational speed of cameraMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Dec 31, 1996·11 cites·12 claims
- 4947US7826119B2Light scanning deviceBROTHER IND LTD·Filed 2008·Granted Nov 2, 2010·0 cites·26 claims
- 5047US2005164600A1Two-wheeled running toyFiled 2004·Application pending·0 cites
Showing the top 50 of 64 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Toshio Sakai files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →