Inventor · disambiguated record
Katsuya Yamagiwa
Also filed as: YAMAGIWA KATSUYA
11 granted patents·3 pending applications·147 citations·filing 1994–2018
89Inventor score
Top patents by PatentIndex Score
14 records- 0185US9828296B2Lead-free piezoelectric ceramic composition, method for producing same, piezoelectric element using lead-free piezoelectric ceramic composition, ultrasonic processing machine, ultrasonic drive device, and sensing deviceYAMAZAKI MASATO·Filed 2012·Granted Nov 28, 2017·6 cites·14 claims
- 0283US6586042B2Method of preparing oxide superconductor with purified mixed metal trifluoroacetateTOSHIBA KK·Filed 2001·Granted Jul 1, 2003·24 cites·12 claims
- 0377US7808161B2Piezoelectric ceramic composition and piezoelectric deviceNGK SPARK PLUG CO·Filed 2008·Granted Oct 5, 2010·4 cites·6 claims
- 0473US6821930B2Preparing method of oxide superconductor, raw material for oxide superconductor, and preparing method of raw material for oxide superconductorTOSHIBA KK·Filed 2003·Granted Nov 23, 2004·14 cites·5 claims
- 0571US9006959B2Lead-free piezoelectric ceramic composition, piezoelectric element comprising same, knock sensor, and process for production of lead-free piezoelectric ceramic compositionYAMAZAKI MASATO·Filed 2011·Granted Apr 14, 2015·2 cites·16 claims
- 0665US8502435B2Piezoelectric ceramic composition and piezoelectric deviceYAMAZAKI MASATO·Filed 2008·Granted Aug 6, 2013·1 cites·4 claims
- 0765US5549123AProcess for producing biocompatible implant material by firing a mixture of a granulated powder and a combustible substanceNGK SPARK PLUG CO·Filed 1994·Granted Aug 27, 1996·84 cites·10 claims
- 0864US8040024B2Piezoceramic material, piezoelectric element and non-resonance knock sensorNGK SPARK PLUG CO·Filed 2009·Granted Oct 18, 2011·2 cites·9 claims
- 0956US6720280B2Dielectric composition for high frequency resonatorsNGK SPARK PLUG CO·Filed 2002·Granted Apr 13, 2004·4 cites·12 claims
- 1053US8142679B2Piezoelectric ceramic composition and piezoelectric element made by using the sameYAMAZAKI MASATO·Filed 2009·Granted Mar 27, 2012·0 cites·4 claims
- 1146US2020153019A1Electrochemical cell and electrochemical stackNGK SPARK PLUG CO·Filed 2018·Application pending·0 cites
- 1243US2007120446A1Piezoelectric ceramic composition and piezoelectric element comprising the compositionNGK SPARK PLUG CO·Filed 2004·Application pending·0 cites
- 1343US2016164108A1Solid oxide fuel cell, production method therefor, fuel-cell stack, and solid oxide fuel batteryNGK SPARK PLUG CO·Filed 2014·Application pending·0 cites
- 1441US5676997AFormation of calcium phosphate coating film and production of substitute for hard tissue in living bodyNGK SPARK PLUG CO·Filed 1995·Granted Oct 14, 1997·6 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →