Inventor · disambiguated record
Hiroshi Saka
Also filed as: SAKA HIROSHI
12 granted patents·318 citations·filing 1982–1995
93Inventor score
Top patents by PatentIndex Score
12 records- 0181US5015976AMicrowave filterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1989·Granted May 14, 1991·30 cites·10 claims
- 0279US4679249AWaveguide-to-microstrip line coupling arrangement and a frequency converter having the coupling arrangementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1985·Granted Jul 7, 1987·45 cites·13 claims
- 0374US5235296ADirectional coupler using a microstrip lineMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Aug 10, 1993·30 cites·10 claims
- 0470US5291161AMicrowave band-pass filter having frequency characteristic of insertion loss steeply increasing on one outside of pass-bandMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Mar 1, 1994·23 cites·22 claims
- 0569US4906946AMicrowave oscillator having series and parallel feedbackMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1988·Granted Mar 6, 1990·24 cites·14 claims
- 0669US4623848AMicrowave preamplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1984·Granted Nov 18, 1986·14 cites·18 claims
- 0768US5483686AChannel selecting apparatus for simultaneous use with both phase-continuous modulation signals and digital modulation signalsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jan 9, 1996·37 cites·20 claims
- 0866US6023491ADemodulation apparatus performing different frequency control functions using separately provided oscillatorsMATSUSHITA ELECTRIC INDUSTRAIL·Filed 1995·Granted Feb 8, 2000·76 cites·27 claims
- 0955US4707669ADielectric resonator microwave oscillator having enhanced negative resistanceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1986·Granted Nov 17, 1987·14 cites·12 claims
- 1053US4648128AMicrowave integrated circuit immune to adverse shielding effectsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1984·Granted Mar 3, 1987·13 cites·45 claims
- 1141US4541123AMixer circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1983·Granted Sep 10, 1985·6 cites·5 claims
- 1241US4450584AMicrowave integrated circuit mixerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1982·Granted May 22, 1984·6 cites·9 claims
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