Inventor · disambiguated record
Tsutomu Takai
Also filed as: TAKAI TSUTOMU
36 granted patents·5 pending applications·254 citations·filing 1987–2022
96Inventor score
Top patents by PatentIndex Score
41 records- 0193US10171061B2Elastic wave deviceMURATA MANUFACTURING CO·Filed 2017·Granted Jan 1, 2019·10 cites·23 claims
- 0293US6436582B1Non-aqueous electrolyte and lithium secondary battery using the sameUBE INDUSTRIES·Filed 2000·Granted Aug 20, 2002·52 cites·10 claims
- 0390US12149226B2Acoustic wave device, filter device, and multiplexerMURATA MANUFACTURING CO·Filed 2022·Granted Nov 19, 2024·2 cites·20 claims
- 0489US11271544B2Multiplexer, high-frequency front end circuit, and communication deviceMURATA MANUFACTURING CO·Filed 2020·Granted Mar 8, 2022·3 cites·19 claims
- 0588US10469055B2Filter device including longitudinally coupled resonator elastic wave filter and elastic wave resonatorMURATA MANUFACTURING CO·Filed 2017·Granted Nov 5, 2019·6 cites·20 claims
- 0687US6413678B1Non-aqueous electrolyte and lithium secondary battery using the sameUBE INDUSTRIES·Filed 1999·Granted Jul 2, 2002·71 cites·16 claims
- 0786US11764880B2Acoustic wave device, multiplexer, high-frequency front end circuit, and communication deviceMURATA MANUFACTURING CO·Filed 2020·Granted Sep 19, 2023·2 cites·18 claims
- 0883US6479191B1Electrolyte having alkyne derivative and lithium secondary battery using the sameUBE INDUSTRIES·Filed 2000·Granted Nov 12, 2002·28 cites·24 claims
- 0982US6866966B2Non-aqueous secondary battery having enhanced discharge capacity retentionUBE INDUSTRIES·Filed 2001·Granted Mar 15, 2005·21 cites·32 claims
- 1081US11159141B2Acoustic wave device, radio-frequency front-end circuit, and communication apparatusMURATA MANUFACTURING CO·Filed 2019·Granted Oct 26, 2021·3 cites·14 claims
- 1181US10862455B2Elastic wave deviceMURATA MANUFACTURING CO·Filed 2017·Granted Dec 8, 2020·3 cites·18 claims
- 1277US11496226B2Acoustic wave device, multiplexer, high-frequency front end circuit, and communication deviceMURATA MANUFACTURING CO·Filed 2020·Granted Nov 8, 2022·1 cites·18 claims
- 1376US8120230B2Acoustic wave deviceTAKAI TSUTOMU·Filed 2010·Granted Feb 21, 2012·7 cites·9 claims
- 1475US10659001B2Elastic wave deviceMURATA MANUFACTURING CO·Filed 2017·Granted May 19, 2020·2 cites·18 claims
- 1574US11552616B2Acoustic wave device, multiplexer, radio-frequency front end circuit, and communication deviceMURATA MANUFACTURING CO·Filed 2020·Granted Jan 10, 2023·1 cites·19 claims
- 1670US10298274B2Multiplexer, transmission device, and reception deviceMURATA MANUFACTURING CO·Filed 2018·Granted May 21, 2019·1 cites·10 claims
- 1769US10491187B2Elastic wave device, multiplexer, high-frequency front-end circuit, and communication apparatusMURATA MANUFACTURING CO·Filed 2019·Granted Nov 26, 2019·1 cites·20 claims
- 1865US11611324B2Acoustic wave device, high frequency front end circuit, and communication apparatusMURATA MANUFACTURING CO·Filed 2019·Granted Mar 21, 2023·1 cites·20 claims
- 1965US11463068B2Acoustic wave device, high frequency front end circuit, and communication apparatusMURATA MANUFACTURING CO·Filed 2019·Granted Oct 4, 2022·1 cites·19 claims
- 2062US6656642B2Non-aqueous electrolytic solution and lithium secondary batteryUBE INDUSTRIES·Filed 2001·Granted Dec 2, 2003·4 cites·18 claims
- 2161US6699998B2Non-aqueous electrolyte and lithium secondary battery using the sameUBE INDUSTRIES·Filed 2002·Granted Mar 2, 2004·3 cites·7 claims
- 2259US7976988B2Non-aqueous electrolyte and lithium secondary battery using the sameUBE INDUSTRIES·Filed 2007·Granted Jul 12, 2011·0 cites·3 claims
- 2355US11349451B2Elastic wave device, high-frequency front-end circuit, and communication apparatusMURATA MANUFACTURING CO·Filed 2019·Granted May 31, 2022·0 cites·20 claims
- 2455US10171113B2Multiplexer, transmission device, and reception deviceMURATA MANUFACTURING CO·Filed 2018·Granted Jan 1, 2019·0 cites·20 claims
- 2553US11456725B2Acoustic wave device, radio-frequency front-end circuit, and communication apparatusMURATA MANUFACTURING CO·Filed 2019·Granted Sep 27, 2022·0 cites·14 claims
- 2651US11218130B2Acoustic wave deviceMURATA MANUFACTURING CO·Filed 2019·Granted Jan 4, 2022·0 cites·18 claims
- 2748US10659002B2Elastic wave deviceMURATA MANUFACTURING CO·Filed 2018·Granted May 19, 2020·0 cites·19 claims
- 2848US4806987AProjection-exposing apparatusNIKON CORP·Filed 1987·Granted Feb 21, 1989·8 cites·2 claims
- 2948US2004121240A1Non-aqueous electrolyte and lithium secondary battery using the sameUBE INDUSTRIES·Filed 2003·Application pending·0 cites
- 3048US2022029599A1Acoustic wave device and multiplexerMURATA MANUFACTURING CO·Filed 2021·Application pending·0 cites
- 3146US10756698B2Elastic wave deviceMURATA MANUFACTURING CO·Filed 2019·Granted Aug 25, 2020·0 cites·20 claims
- 3245US11115003B2Acoustic wave device, multiplexer, high-frequency front end circuit, and communication apparatusMURATA MANUFACTURING CO·Filed 2020·Granted Sep 7, 2021·0 cites·20 claims
- 3343US7691539B2Non-aqueous secondary battery having increased discharge capacity retentionUBE INDUSTRIES·Filed 2003·Granted Apr 6, 2010·0 cites·9 claims
- 3443US2020328728A1Acoustic wave device, multiplexer, radio-frequency front-end circuit, and communication deviceMURATA MANUFACTURING CO·Filed 2020·Application pending·0 cites
- 3542US11463067B2Multiplexer, radio-frequency front end circuit, and communication deviceMURATA MANUFACTURING CO·Filed 2019·Granted Oct 4, 2022·0 cites·20 claims
- 3642US10680577B2Acoustic wave device, multiplexer, high-frequency front-end circuit, and communication apparatusMURATA MANUFACTURING CO·Filed 2019·Granted Jun 9, 2020·0 cites·20 claims
- 3741US6269185B1Image processing apparatus and image forming apparatusTOSHIBA KK·Filed 1998·Granted Jul 31, 2001·8 cites·17 claims
- 3840US2003148190A1Non-aqueous electrolyte and lithium secondary battery using the sameFiled 2000·Application pending·0 cites
- 3939US6413677B1Lithium secondary battery electrolyte and lithium secondary battery using the sameUBE INDUSTRIES·Filed 1999·Granted Jul 2, 2002·9 cites·8 claims
- 4032US6139991AElectrolyte solution for lithium secondary battery and lithium secondary battery using the sameUBE INDUSTRIES·Filed 1998·Granted Oct 31, 2000·6 cites·14 claims
- 4129US2002103394A1Organometallic copper complex and preparation of copper thin film by CVDFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →