Inventor · disambiguated record
Kei Matsutani
Also filed as: MATSUTANI KEI
10 granted patents·1 pending application·92 citations·filing 1999–2024
89Inventor score
Files withMURATA MANUFACTURING CO11
Top patents by PatentIndex Score
11 records- 0191US6861920B2Complex circuit board, nonreciprocal circuit device, resonator, filter, duplexer communications device, circuit module, complex circuit board manufacturing method, and nonreciprocal circuit device manufacturing methodMURATA MANUFACTURING CO·Filed 2003·Granted Mar 1, 2005·26 cites·7 claims
- 0288US10715109B2Radio frequency front-end circuit and communication deviceMURATA MANUFACTURING CO·Filed 2019·Granted Jul 14, 2020·6 cites·21 claims
- 0383US7471173B2Resonator, filter, nonreciprocal circuit device, and communication apparatusMURATA MANUFACTURING CO·Filed 2004·Granted Dec 30, 2008·17 cites·12 claims
- 0475US6472960B1Complex circuit board with an electrode and air gap between dielectric and magnetic substratesMURATA MANUFACTURING CO·Filed 1999·Granted Oct 29, 2002·18 cites·17 claims
- 0571US10382006B2Variable frequency filter, radio frequency front-end circuit, and communication terminalMURATA MANUFACTURING CO·Filed 2018·Granted Aug 13, 2019·2 cites·13 claims
- 0667US6657514B1Dielectric transmission line attenuator, dielectric transmission line terminator, and wireless communication deviceMURATA MANUFACTURING CO·Filed 2000·Granted Dec 2, 2003·8 cites·20 claims
- 0766US6441698B1Dielectric-waveguide attenuator, dielectric-waveguide terminator, and wireless apparatus incorporating sameMURATA MANUFACTURING CO·Filed 2000·Granted Aug 27, 2002·8 cites·15 claims
- 0858US2025023586A1Radio frequency circuit and communication apparatusMURATA MANUFACTURING CO·Filed 2024·Application pending·0 cites
- 0957US6870449B2High-frequency transmission lineMURATA MANUFACTURING CO·Filed 2002·Granted Mar 22, 2005·4 cites·16 claims
- 1053US6646516B2Complex circuit board, nonreciprocal circuit device, resonator, filter, duplexer, communications device, circuit module, complex circuit board manufacturing method, and nonreciprocal circuit device manufacturing methodMURATA MANUFACTURING CO·Filed 2002·Granted Nov 11, 2003·2 cites·6 claims
- 1144US6496080B1Dielectric waveguide nonreciprocal circuit device with a non-interfering magnetic member supportMURATA MANUFACTURING CO·Filed 2000·Granted Dec 17, 2002·1 cites·19 claims
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