Inventor · disambiguated record
Katsuhiko Gunji
Also filed as: GUNJI KATSUHIKO
17 granted patents·1 pending application·424 citations·filing 1988–2006
95Inventor score
Top patents by PatentIndex Score
18 records- 0191US6977563B2Thin-film piezoelectric resonator and method for fabricating the sameTDK CORP·Filed 2003·Granted Dec 20, 2005·67 cites·7 claims
- 0285US5525954AStripline resonatorOKI ELECTRIC IND CO LTD·Filed 1994·Granted Jun 11, 1996·42 cites·10 claims
- 0380US5525942ALC-type dielectric filter and duplexerOKI ELECTRIC IND CO LTD·Filed 1994·Granted Jun 11, 1996·92 cites·42 claims
- 0479US5715527AMobile communication device having an output power sensor succeeding a transmission filterOKI ELECTRIC IND CO LTD·Filed 1995·Granted Feb 3, 1998·46 cites·10 claims
- 0573US6778038B2Piezoelectric resonant filter, duplexer, and method of manufacturing sameTDK CORP·Filed 2002·Granted Aug 17, 2004·21 cites·9 claims
- 0671US5015973ADuplexer with an isolating circuit on a dielectric plateOKI ELECTRIC IND CO LTD·Filed 1988·Granted May 14, 1991·20 cites·15 claims
- 0768US5124675ALC-type dielectric filterELECTRIC INDUSTRY CO LTD·Filed 1990·Granted Jun 23, 1992·23 cites·3 claims
- 0866US4891615ADielectric filter with attenuation poleOKI ELECTRIC IND CO LTD·Filed 1988·Granted Jan 2, 1990·17 cites·22 claims
- 0965US7132310B2Packaging substrate and manufacturing method thereof, integrated circuit device and manufacturing method thereof, and SAW deviceTDK CORP·Filed 2006·Granted Nov 7, 2006·2 cites·6 claims
- 1064US7078984B2Duplexer and method of manufacturing sameTDK CORP·Filed 2003·Granted Jul 18, 2006·10 cites·10 claims
- 1162US5486799AStrip line filter and duplexer filter using the sameOKI ELECTRIC IND CO LTD·Filed 1994·Granted Jan 23, 1996·19 cites·22 claims
- 1261US5227747ADielectric filter having coupling amount adjusting patternsOKI ELECTRIC IND CO LTD·Filed 1992·Granted Jul 13, 1993·18 cites·4 claims
- 1360US5150089ADielectric filter having an attenuation pole tunable to a predetermined frequencyOKI ELECTRIC IND CO LTD·Filed 1990·Granted Sep 22, 1992·17 cites·1 claims
- 1453US5323127ABranching filter having specific impedance and admittance characteristicsOKI ELECTRIC IND CO LTD·Filed 1993·Granted Jun 21, 1994·13 cites·7 claims
- 1551US5097237AMicrostrip line type resonatorOKI ELECTRIC IND CO LTD·Filed 1990·Granted Mar 17, 1992·12 cites·9 claims
- 1642US7015556B2Packaging substrate and manufacturing method thereof, integrated circuit device and manufacturing method thereof, and saw deviceTDK CORP·Filed 2004·Granted Mar 21, 2006·0 cites·4 claims
- 1740US5015974AIsolating circuit and dielectric filter for use thereinOKI ELECTRIC IND CO LTD·Filed 1989·Granted May 14, 1991·5 cites·13 claims
- 1840US2003137039A1Packaging substrate and manufacturing method thereof, integrated circuit device and manufacturing method thereof, and saw deviceTDK CORP·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →