Assignee
JAPAN RADIO CO LTD
JP·116 granted patents·2 pending applications·2,798 citations·filing 1977–2022
Top patents by PatentIndex Score
118 records- 0196USD401592SAntenna radomeJAPAN RADIO CO LTD·Filed 1997·Granted Nov 24, 1998·83 cites·1 claims
- 0293US6101378APre-paid cellular telephone systemJAPAN RADIO CO LTD·Filed 1996·Granted Aug 8, 2000·266 cites·19 claims
- 0391US5818283AHigh power FET switchJAPAN RADIO CO LTD·Filed 1996·Granted Oct 6, 1998·94 cites·5 claims
- 0487US6373223B1Voltage equalizing apparatus and voltage equalizing method for battery devicesJAPAN RADIO CO LTD·Filed 2001·Granted Apr 16, 2002·76 cites·18 claims
- 0586USD401594SNavigation antennaJAPAN RADIO CO LTD·Filed 1997·Granted Nov 24, 1998·36 cites·1 claims
- 0686US4318100AAutomatic ground clutter rejection in weather pulse radar systemJAPAN RADIO CO LTD·Filed 1980·Granted Mar 2, 1982·52 cites·13 claims
- 0785US6321444B1Method of making surface acoustic wave deviceJAPAN RADIO CO LTD·Filed 2000·Granted Nov 27, 2001·35 cites·9 claims
- 0883US6819052B2Coaxial type impedance matching device and impedance detecting method for plasma generationJAPAN RADIO CO LTD·Filed 2003·Granted Nov 16, 2004·16 cites·2 claims
- 0983US6191965B1Switching power supplyJAPAN RADIO CO LTD·Filed 2000·Granted Feb 20, 2001·39 cites·15 claims
- 1083USD401593SNavigation antennaJAPAN RADIO CO LTD·Filed 1997·Granted Nov 24, 1998·29 cites·1 claims
- 1183US5065415AProgrammable frequency dividerJAPAN RADIO CO LTD·Filed 1990·Granted Nov 12, 1991·38 cites·5 claims
- 1283US5031308AMethod of manufacturing multilayered printed-wiring-boardJAPAN RADIO CO LTD·Filed 1989·Granted Jul 16, 1991·59 cites·8 claims
- 1383US4941207AStructure for wireless communication in an electromagnetically shielded buildingJAPAN RADIO CO LTD·Filed 1987·Granted Jul 10, 1990·76 cites·15 claims
- 1482US5521453ASurface acoustic wave filter and mobile communication system using sameJAPAN RADIO CO LTD·Filed 1995·Granted May 28, 1996·43 cites·20 claims
- 1581USD389757SRadar display unitJAPAN RADIO CO LTD·Filed 1997·Granted Jan 27, 1998·26 cites·1 claims
- 1680US6246596B1Switching power supplyJAPAN RADIO CO LTD·Filed 2000·Granted Jun 12, 2001·38 cites·4 claims
- 1779US6642693B2Voltage equalizing apparatus for battery devicesJAPAN RADIO CO LTD·Filed 2001·Granted Nov 4, 2003·38 cites·22 claims
- 1879US6172560B1Amplifier with feedforward loops for rejecting non-linear distortionJAPAN RADIO CO LTD·Filed 1999·Granted Jan 9, 2001·44 cites·14 claims
- 1979US5227806AStabilized ship antenna system for satellite communicationJAPAN RADIO CO LTD·Filed 1992·Granted Jul 13, 1993·60 cites·8 claims
- 2077US5929733AMulti-layer printed substrateJAPAN RADIO CO LTD·Filed 1995·Granted Jul 27, 1999·50 cites·2 claims
- 2177US5507023AReceiver with an AGC circuit capable of expanding a dynamic rangeJAPAN RADIO CO LTD·Filed 1995·Granted Apr 9, 1996·64 cites·4 claims
- 2277US5402441ASignal receiver for global positioning systemJAPAN RADIO CO LTD·Filed 1993·Granted Mar 28, 1995·75 cites·2 claims
- 2377US4968981AGPS receiver apparatusJAPAN RADIO CO LTD·Filed 1989·Granted Nov 6, 1990·53 cites·3 claims
- 2477US4644358AStem orientation measurement apparatusJAPAN RADIO CO LTD·Filed 1983·Granted Feb 17, 1987·32 cites·8 claims
- 2576US5327096AControl circuit for automatically controlled feed forward nonlinear distortion compensation amplifierJAPAN RADIO CO LTD·Filed 1993·Granted Jul 5, 1994·27 cites·25 claims
- 2675US5359337AStabilized antenna systemJAPAN RADIO CO LTD·Filed 1991·Granted Oct 25, 1994·50 cites·9 claims
- 2774US11924736B2Wireless communication unit and wireless network system using the sameJAPAN RADIO CO LTD·Filed 2019·Granted Mar 5, 2024·3 cites·16 claims
- 2874US10003117B2Two-port triplate-line/waveguide converter having two probes with tips extending in different directionsJAPAN RADIO CO LTD·Filed 2014·Granted Jun 19, 2018·5 cites·3 claims
- 2974US6205036B1Energy transfer unit, charge unit, and power supply unitJAPAN RADIO CO LTD·Filed 2000·Granted Mar 20, 2001·33 cites·42 claims
- 3074US4973875ASurface elastic wave deviceJAPAN RADIO CO LTD·Filed 1988·Granted Nov 27, 1990·23 cites·10 claims
- 3173US6628179B2Surface acoustic wave device with a window for adjustment of the deviceJAPAN RADIO CO LTD·Filed 2001·Granted Sep 30, 2003·15 cites·10 claims
- 3271US6489844B2Feed-forward amplifier and controller of the sameJAPAN RADIO CO LTD·Filed 2000·Granted Dec 3, 2002·22 cites·15 claims
- 3371US6285170B1Switching power supplyJAPAN RADIO CO LTD·Filed 2000·Granted Sep 4, 2001·24 cites·6 claims
- 3471US4878036ASurface elastic wave filterJAPAN RADIO CO LTD·Filed 1987·Granted Oct 31, 1989·23 cites·10 claims
- 3570US6522301B2Above deck unit for automatic identification systemJAPAN RADIO CO LTD·Filed 2001·Granted Feb 18, 2003·32 cites·19 claims
- 3670US5383223APower control device wherein a bias voltage in level detection is given a constant difference from a detected voltageJAPAN RADIO CO LTD·Filed 1993·Granted Jan 17, 1995·89 cites·10 claims
- 3770US4334226AAntenna system for satellite communicationJAPAN RADIO CO LTD·Filed 1980·Granted Jun 8, 1982·32 cites·9 claims
- 3869US7671684B2FET bias circuitJAPAN RADIO CO LTD·Filed 2005·Granted Mar 2, 2010·8 cites·3 claims
- 3969US7417845B2Electric double-layer capacitor, electric energy storage device including the same, and production method for electric double-layer capacitorJAPAN RADIO CO LTD·Filed 2005·Granted Aug 26, 2008·7 cites·15 claims
- 4069US6362518B1Electronic compoment to be mounted on a circuit board having electronic circuit device sealed therein and method of manufacturing the sameJAPAN RADIO CO LTD·Filed 2000·Granted Mar 26, 2002·13 cites·12 claims
- 4169US5252882ASurface acoustic wave device and its manufacturing methodJAPAN RADIO CO LTD·Filed 1991·Granted Oct 12, 1993·39 cites·16 claims
- 4268US5929442AApparatus for and method of analyzing carbon isotopesJAPAN RADIO CO LTD·Filed 1997·Granted Jul 27, 1999·45 cites·15 claims
- 4368US5195111AProgrammable frequency dividing apparatusJAPAN RADIO CO LTD·Filed 1991·Granted Mar 16, 1993·23 cites·15 claims
- 4467US5617300AConnecting method of printed substrate and apparatusJAPAN RADIO CO LTD·Filed 1994·Granted Apr 1, 1997·36 cites·13 claims
- 4567US5499268AAdaptive equalizer capable of compensating for carrier frequency offsetJAPAN RADIO CO LTD·Filed 1995·Granted Mar 12, 1996·69 cites·10 claims
- 4667US5471722AMethod of manufacturing a surface acoustic waveJAPAN RADIO CO LTD·Filed 1993·Granted Dec 5, 1995·35 cites·10 claims
- 4767US5223845AArray antenna and stabilized antenna systemJAPAN RADIO CO LTD·Filed 1991·Granted Jun 29, 1993·38 cites·9 claims
- 4867US5077764AFrequency dividing circuit capable of varying dividing ratioJAPAN RADIO CO LTD·Filed 1990·Granted Dec 31, 1991·20 cites·4 claims
- 4966USD398546SFish finderJAPAN RADIO CO LTD·Filed 1997·Granted Sep 22, 1998·14 cites·1 claims
- 5066USD390484SRadar display unitJAPAN RADIO CO LTD·Filed 1997·Granted Feb 10, 1998·14 cites·1 claims
Showing the top 50 of 118 patent records by PatentIndex Score.
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