Inventor · disambiguated record
Yasuo Okamoto
Also filed as: OKAMOTO YASUO
42 granted patents·9 pending applications·527 citations·filing 1975–2025
98Inventor score
Files withFUJI PHOTO FILM CO LTD17YAMAHA MOTOR CO LTD15SHOWA DENKO KK6OKAMOTO YASUO4AISIN KEIKINZOKU CO LTD1
Top patents by PatentIndex Score
51 records- 0195US4992026AGas turbine bladeTOSHIBA KK·Filed 1989·Granted Feb 12, 1991·86 cites·16 claims
- 0286US10352201B2Valve mechanism of engineYAMAHA MOTOR CO LTD·Filed 2016·Granted Jul 16, 2019·2 cites·6 claims
- 0386US7060370B2Organic EL element and organic EL displayFUJI PHOTO FILM CO LTD·Filed 2002·Granted Jun 13, 2006·36 cites·15 claims
- 0482US5801212APhotopolymerizable composition containing a sensitizing dye and a titanocene compoundFUJI PHOTO FILM CO LTD·Filed 1996·Granted Sep 1, 1998·53 cites·5 claims
- 0581US4950582ALight-sensitive compositionFUJI PHOTO FILM CO LTD·Filed 1988·Granted Aug 21, 1990·28 cites·10 claims
- 0679US6601572B2Joint structure for an blow-by gas passageYAMAHA MOTOR CO LTD·Filed 2001·Granted Aug 5, 2003·19 cites·11 claims
- 0776US4269227AValve apparatusTOKYO SHIBAURA ELECTRIC CO·Filed 1978·Granted May 26, 1981·29 cites·4 claims
- 0873US6727044B1Method for producing lithographic printing plate, lithographic printing original plate for laser scan exposure, and photopolymerizable compositionFUJI PHOTO FILM CO LTD·Filed 1999·Granted Apr 27, 2004·34 cites·6 claims
- 0972US4971891APhotopolymerizable compositions containing organoboron compounds and pyrylium or thiopyrylium dyesFUJI PHOTO FILM CO LTD·Filed 1988·Granted Nov 20, 1990·21 cites·16 claims
- 1071US6140384APhotopolymerizable composition containing a sensitizing dye with cyano or substituted carbonyl groupsFUJI PHOTO FILM CO LTD·Filed 1997·Granted Oct 31, 2000·24 cites·9 claims
- 1171US5385807APhotopolymerizable compositionFUJI PHOTO FILM CO LTD·Filed 1992·Granted Jan 31, 1995·25 cites·21 claims
- 1269US11193401B2Lost motion mechanism, valve gear and engineYAMAHA MOTOR CO LTD·Filed 2020·Granted Dec 7, 2021·0 cites·21 claims
- 1367US9188042B2Urea quality diagnosis systemTAKAHASHI HIROTAKA·Filed 2011·Granted Nov 17, 2015·2 cites·4 claims
- 1466US9272327B2Method for producing shaped article of aluminum alloy, shaped aluminum alloy article and production systemSHOWA DENKO KK·Filed 2014·Granted Mar 1, 2016·1 cites·7 claims
- 1566US6638687B2Method for preparing lithographic printing plateFUJI PHOTO FILM CO LTD·Filed 2001·Granted Oct 28, 2003·8 cites·11 claims
- 1666US6153660APhotopolymerizable compositionFUJI PHOTO FILM CO LTD·Filed 1998·Granted Nov 28, 2000·20 cites·3 claims
- 1766US5168032APhotopolymerizable composition initiated by a combination of boron compound, dye, and heterocyclic compoundFUJI PHOTO FILM CO LTD·Filed 1990·Granted Dec 1, 1992·18 cites·14 claims
- 1864US2025197974A1Aluminum Alloy For Die Casting Having Excellent Thermally Conductive Property And Method For Producing Die Casting Material Using The SameAISIN KEIKINZOKU CO LTD·Filed 2025·Application pending·0 cites
- 1962US8256939B2Straddle-type vehicleONODA AKIRA·Filed 2007·Granted Sep 4, 2012·3 cites·9 claims
- 2062US5776996APhotopolymerizable compositionFUJI PHOTO FILM CO LTD·Filed 1997·Granted Jul 7, 1998·16 cites·5 claims
- 2162US5049481ASensitizers for photopolymerizable compositionsFUJI PHOTO FILM CO LTD·Filed 1989·Granted Sep 17, 1991·21 cites·22 claims
- 2261US7690463B2Straddle-type vehicleYAMAHA MOTOR CO LTD·Filed 2007·Granted Apr 6, 2010·4 cites·7 claims
- 2360US7434555B2V type internal combustion engineYAMAHA MOTOR CO LTD·Filed 2006·Granted Oct 14, 2008·2 cites·14 claims
- 2458US7731238B2Straddle-type vehicleYAMAHA MOTOR CO LTD·Filed 2007·Granted Jun 8, 2010·7 cites·10 claims
- 2556US10851680B2Internal combustion engine and vehicleYAMAHA MOTOR CO LTD·Filed 2018·Granted Dec 1, 2020·0 cites·9 claims
- 2655US2006027291A1Aluminum alloy excellent in cutting ability, aluminum alloy materials and manufacturing method thereofSHOWA DENKO KK·Filed 2005·Application pending·0 cites
- 2753US11255236B2Valve gear and engineYAMAHA MOTOR CO LTD·Filed 2020·Granted Feb 22, 2022·0 cites·11 claims
- 2852US8157934B2Wear-resistant aluminum alloy material with excellent workability and method for producing the sameOKAMOTO YASUO·Filed 2007·Granted Apr 17, 2012·0 cites·12 claims
- 2952US6880398B2Fuel level detection device for a fuel tankYAMAHA MOTOR CO LTD·Filed 2002·Granted Apr 19, 2005·5 cites·23 claims
- 3052US5731363APhotopolymerizable composition containing sensitizing dye and titanocene compoundFUJI PHOTO FILM CO LTD·Filed 1996·Granted Mar 24, 1998·14 cites·10 claims
- 3151US2016108505A1Method for producing starting material for cuttingSHOWA DENKO KK·Filed 2014·Application pending·0 cites
- 3251US2003143102A1Aluminum alloy excellent in cutting ability, aluminum alloy materials and manufacturing method thereofSHOWA DENKO KK·Filed 2002·Application pending·0 cites
- 3351US2010006192A1Method for producing aluminum-alloy shaped product, aluminum-alloy shaped product and production systemSHOWA DENKO KK·Filed 2007·Application pending·0 cites
- 3449US2005109429A1Aluminum alloy, bar-like material, forge-formed article, machine-formed article, wear-resistant aluminum alloy with excellent anodized coat using the same and production methods thereofSHOWA DENKO KK·Filed 2004·Application pending·0 cites
- 3548US11066963B2Internal combustion engine and vehicleYAMAHA MOTOR CO LTD·Filed 2018·Granted Jul 20, 2021·0 cites·9 claims
- 3648US5772970AReaction columnNIPPON OIL CO LTD·Filed 1996·Granted Jun 30, 1998·15 cites·5 claims
- 3748US5609992APhotopolymerizable compositionFUJI PHOTO FILM CO LTD·Filed 1995·Granted Mar 11, 1997·16 cites·13 claims
- 3847US11193403B2Valve spring retainer and internal combustion engineYAMAHA MOTOR CO LTD·Filed 2018·Granted Dec 7, 2021·0 cites·3 claims
- 3944US10167744B2Valve gear for engineYAMAHA MOTOR CO LTD·Filed 2015·Granted Jan 1, 2019·0 cites·4 claims
- 4044US8828157B2Method for producing shaped article of aluminum alloy, shaped aluminum alloy article and production systemOKAMOTO YASUO·Filed 2004·Granted Sep 9, 2014·0 cites·7 claims
- 4144US2008239998A1Sip communication system, call control server and sip communication methodOGAMI KENICHI·Filed 2008·Application pending·0 cites
- 4242US9441521B2Method for removing foreign matter from a selective reduction catalyst systemOKAMOTO YASUO·Filed 2012·Granted Sep 13, 2016·0 cites·16 claims
- 4341US4046650ACarbon block for cathodes of aluminumSUMITOMO ALUMINIUM SMELTING CO·Filed 1975·Granted Sep 6, 1977·7 cites·2 claims
- 4439US10215063B2Valve gear for engine and method of manufacturing rocker armsYAMAHA MOTOR CO LTD·Filed 2015·Granted Feb 26, 2019·0 cites·6 claims
- 4539US6846615B2Method for making lithographic printing plateFUJI PHOTO FILM CO LTD·Filed 2002·Granted Jan 25, 2005·3 cites·8 claims
- 4638US2012241055A1Process for producing brake pistonOKAMOTO YASUO·Filed 2010·Application pending·0 cites
- 4737US10641141B2Valve gear for engineYAMAHA MOTOR CO LTD·Filed 2015·Granted May 5, 2020·0 cites·12 claims
- 4836US5939465APhotopolymerizable compositionFUJI PHOTO FILM CO LTD·Filed 1997·Granted Aug 17, 1999·4 cites·5 claims
- 4936US2006266315A1Valve actuating system for reciprocating machineYAMAHA MOTOR CO LTD·Filed 2006·Application pending·0 cites
- 5034US5698372APhotosensitive lithographic printing plateFUJI PHOTO FILM CO LTD·Filed 1996·Granted Dec 16, 1997·3 cites·2 claims
Showing the top 50 of 51 patent records by PatentIndex Score.
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