Inventor · disambiguated record
Toshio Nishikawa
Also filed as: ISHIKAWA YOUHEI · NISHIKAWA TOSHIO
76 granted patents·3 pending applications·1,655 citations·filing 1975–2018
99Inventor score
Files withMURATA MANUFACTURING CO38SHOWA CORP15MAZDA MOTOR13METAL COATINGS INT INC5TORAY INDUSTRIES2
Top patents by PatentIndex Score
79 records- 0198US4028652ADielectric resonator and microwave filter using the sameMURATA MANUFACTURING CO·Filed 1975·Granted Jun 7, 1977·141 cites·9 claims
- 0297US4423397ADielectric resonator and filter with dielectric resonatorMURATA MANUFACTURING CO·Filed 1981·Granted Dec 27, 1983·87 cites·28 claims
- 0396US4703291ADielectric filter for use in a microwave integrated circuitMURATA MANUFACTURING CO·Filed 1986·Granted Oct 27, 1987·99 cites·14 claims
- 0496US4639699ADielectric resonator comprising a resonant dielectric pillar mounted in a conductively coated dielectric caseMURATA MANUFACTURING CO·Filed 1983·Granted Jan 27, 1987·74 cites·39 claims
- 0594US4138652ADielectric resonator capable of suppressing spurious modeMURATA MANUFACTURING CO·Filed 1977·Granted Feb 6, 1979·48 cites·6 claims
- 0693US4691677AThrottle valve control system for internal combustion engineMAZDA MOTOR·Filed 1986·Granted Sep 8, 1987·59 cites·10 claims
- 0793US4552112AValve timing control for internal combustion enginesMAZDA MOTOR·Filed 1984·Granted Nov 12, 1985·57 cites·6 claims
- 0892US5090202AIntake system for an internal combustion engine with superchargerMAZDA MOTOR·Filed 1989·Granted Feb 25, 1992·54 cites·14 claims
- 0992US4559508ADistribution constant filter with suppression of TE11 resonance modeMURATA MANUFACTURING CO·Filed 1984·Granted Dec 17, 1985·48 cites·26 claims
- 1092US4464640ADistribution constant type filterMURATA MANUFACTURING CO·Filed 1982·Granted Aug 7, 1984·47 cites·29 claims
- 1190US5097236AParallel connection multi-stage band-pass filterMURATA MANUFACTURING CO·Filed 1990·Granted Mar 17, 1992·58 cites·22 claims
- 1289US4223287AElectrical filter employing transverse electromagnetic mode coaxial resonatorsMURATA MANUFACTURING CO·Filed 1978·Granted Sep 16, 1980·32 cites·26 claims
- 1389US4179673AInterdigital filterMURATA MANUFACTURING CO·Filed 1978·Granted Dec 18, 1979·34 cites·11 claims
- 1487US4623857ADielectric resonator deviceMURATA MANUFACTURING CO·Filed 1985·Granted Nov 18, 1986·39 cites·10 claims
- 1587US4142164ADielectric resonator of improved typeMURATA MANUFACTURING CO·Filed 1977·Granted Feb 27, 1979·29 cites·7 claims
- 1686US4620852AGrained artificial leather having good color fastness and dyeing method of ultrafine polyamide fibersTORAY INDUSTRIES·Filed 1984·Granted Nov 4, 1986·30 cites·11 claims
- 1785US4342972AMicrowave device employing coaxial resonatorMURATA MANUFACTURING CO·Filed 1980·Granted Aug 3, 1982·34 cites·14 claims
- 1884US4276525ACoaxial resonator with projecting terminal portion and electrical filter employing a coaxial resonator of that typeMURATA MANUFACTURING CO·Filed 1978·Granted Jun 30, 1981·26 cites·4 claims
- 1983US7264661B2Particulate metal alloy coating for providing corrosion protectionMETAL COATINGS INT INC·Filed 2006·Granted Sep 4, 2007·5 cites·37 claims
- 2082US7078076B2Particulate metal alloy coating for providing corrosion protectionMETAL COATINGS INT INC·Filed 2002·Granted Jul 18, 2006·18 cites·17 claims
- 2182US4121181AElectrical branching filterMURATA MANUFACTURING CO·Filed 1977·Granted Oct 17, 1978·23 cites·11 claims
- 2281US4756947AGrained artificial leather having good color fastness of ultrafine polyamide fibersTORAY INDUSTRIES·Filed 1986·Granted Jul 12, 1988·28 cites·4 claims
- 2381US4151494AElectrical filterMURATA MANUFACTURING CO·Filed 1977·Granted Apr 24, 1979·23 cites·25 claims
- 2480US4266975AAnticorrosive coating compositionDIAMOND SHAMROCK CORP·Filed 1980·Granted May 12, 1981·36 cites·16 claims
- 2579US5068629ANonreciprocal circuit elementMURATA MANUFACTURING CO·Filed 1990·Granted Nov 26, 1991·35 cites·22 claims
- 2679US4143344AMicrowave band-pass filter provided with dielectric resonatorMURATA MANUFACTURING CO·Filed 1977·Granted Mar 6, 1979·21 cites·8 claims
- 2778US4730174ADielectric material coaxial resonator with improved resonance frequency adjusting mechanismMURATA MANUFACTURING CO·Filed 1986·Granted Mar 8, 1988·26 cites·7 claims
- 2877US5033268AIntake system for turbocharged engineMAZDA MOTOR·Filed 1989·Granted Jul 23, 1991·33 cites·17 claims
- 2977US4996966ASupercharged engineMAZDA MOTOR·Filed 1989·Granted Mar 5, 1991·23 cites·22 claims
- 3073US5229729ARadio frequency signal combining/sorting apparatusMURATA MANUFACTURING CO·Filed 1992·Granted Jul 20, 1993·28 cites·21 claims
- 3170US7740947B2Particulate metal alloy coating for providing corrosion protectionMETAL COATINGS INT INC·Filed 2007·Granted Jun 22, 2010·4 cites·13 claims
- 3270US5211680AControl system for engine with automatic transmissionMAZDA MOTOR·Filed 1991·Granted May 18, 1993·26 cites·8 claims
- 3369US5110308AConnectorMURATA MANUFACTURING CO·Filed 1990·Granted May 5, 1992·33 cites·34 claims
- 3467US4136320AMethod of constructing dielectric resonator unit and dielectric resonator unit produced therebyMURATA MANUFACTURING CO·Filed 1977·Granted Jan 23, 1979·18 cites·8 claims
- 3566US4721931AStripline filterMURATA MANUFACTURING CO·Filed 1987·Granted Jan 26, 1988·17 cites·8 claims
- 3666US4184130AFilter devices incorporating dielectric resonators and leakage cableMURATA MANUFACTURING CO·Filed 1978·Granted Jan 15, 1980·14 cites·10 claims
- 3765US4682044AEngine idling load control meansMAZDA MOTOR·Filed 1985·Granted Jul 21, 1987·38 cites·9 claims
- 3865US4245198AHigh frequency filter deviceMURATA MANUFACTURING CO·Filed 1979·Granted Jan 13, 1981·14 cites·13 claims
- 3964US4398164ACoaxial resonatorMURATA MANUFACTURING CO·Filed 1981·Granted Aug 9, 1983·21 cites·11 claims
- 4062US5078621AConnectorMURATA MANUFACTURING CO·Filed 1990·Granted Jan 7, 1992·28 cites·9 claims
- 4162US4517947AMultiple cylinder engine having air-fuel ratio control means in accordance with a signal from an exhaust gas sensorMAZDA MOTOR·Filed 1982·Granted May 21, 1985·15 cites·8 claims
- 4260US7678184B2Particulate metal alloy coating for providing corrosion protectionMETAL COATINGS INT INC·Filed 2008·Granted Mar 16, 2010·0 cites·19 claims
- 4359US10202977B2Vane pump device having different discharging pressuresSHOWA CORP·Filed 2016·Granted Feb 12, 2019·0 cites·9 claims
- 4458US5132651AFilter apparatusMURATA MANUFACTURING CO·Filed 1990·Granted Jul 21, 1992·12 cites·6 claims
- 4556US4713632ABand reflection type FET dielectric resonator oscillatorMURATA MANUFACTURING CO·Filed 1986·Granted Dec 15, 1987·14 cites·4 claims
- 4654US10731646B2Vane pump device having two different discharge amountsSHOWA CORP·Filed 2016·Granted Aug 4, 2020·0 cites·11 claims
- 4754US4325035AOscillator using dielectric resonatorMURATA MANUFACTURING CO·Filed 1980·Granted Apr 13, 1982·11 cites·30 claims
- 4853US5138839AControl system for internal combustion engine with turbo superchargerMAZDA MOTOR·Filed 1990·Granted Aug 18, 1992·14 cites·14 claims
- 4952US4528655AApparatus for detecting variation of electrostatic capacitanceMURATA MANUFACTURING CO·Filed 1982·Granted Jul 9, 1985·9 cites·7 claims
- 5051US10451062B2Vane pump deviceSHOWA CORP·Filed 2016·Granted Oct 22, 2019·0 cites·4 claims
Showing the top 50 of 79 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →