Assignee
PIONEER ELECTRONIC CORP
JP·2,908 granted patents·11 pending applications·76,719 citations·filing 1972–2008
Top patents by PatentIndex Score
2,919 records- 0199US6212330B1Information record medium, apparatus for recording the same and apparatus for reproducing the samePIONEER ELECTRONIC CORP·Filed 1997·Granted Apr 3, 2001·618 cites·8 claims
- 0299US6137954AInformation record medium, apparatus for recording the same and apparatus for reproducing the samePIONEER ELECTRONIC CORP·Filed 1997·Granted Oct 24, 2000·318 cites·19 claims
- 0399US5040067AMethod and device for processing multiple video signalsPIONEER ELECTRONIC CORP·Filed 1989·Granted Aug 13, 1991·153 cites·14 claims
- 0499US4926485AOutput level control apparatusPIONEER ELECTRONIC CORP·Filed 1989·Granted May 15, 1990·241 cites·10 claims
- 0599US4680647AMethod for recording and reproducing video format signalPIONEER ELECTRONIC CORP·Filed 1984·Granted Jul 14, 1987·187 cites·17 claims
- 0699US4286281AVideo format signal recording and reproducing devicePIONEER ELECTRONIC CORP·Filed 1979·Granted Aug 25, 1981·133 cites·9 claims
- 0798US6215952B1Information record medium, apparatus for recording the same and apparatus for reproducing the samePIONEER ELECTRONIC CORP·Filed 1997·Granted Apr 10, 2001·409 cites·37 claims
- 0898US5608715AMulti-layered recording disk and recording/reproducing system using the samePIONEER ELECTRONIC CORP·Filed 1995·Granted Mar 4, 1997·273 cites·26 claims
- 0998US5448552ASuper resolution information reproduction by tracking address information in normal resolutionPIONEER ELECTRONIC CORP·Filed 1993·Granted Sep 5, 1995·130 cites·10 claims
- 1098US5122886ASelective information playback from recording medium based on user input content codesPIONEER ELECTRONIC CORP·Filed 1990·Granted Jun 16, 1992·163 cites·9 claims
- 1198US4878211AMethod and apparatus for correcting the loop gain of a servo loop in accordance with measurements during open-loop operationPIONEER ELECTRONIC CORP·Filed 1987·Granted Oct 31, 1989·141 cites·15 claims
- 1297US6166487AElectron emission device and display device using the samePIONEER ELECTRONIC CORP·Filed 2000·Granted Dec 26, 2000·78 cites·14 claims
- 1397US5512919AThree-dimensional coordinates input apparatusPIONEER ELECTRONIC CORP·Filed 1993·Granted Apr 30, 1996·335 cites·2 claims
- 1497US5467326AApparatus for selectively playing a recording mediumPIONEER ELECTRONIC CORP·Filed 1994·Granted Nov 14, 1995·215 cites·2 claims
- 1597US5323234AProgrammable CATV system and terminal unit thereforPIONEER ELECTRONIC CORP·Filed 1989·Granted Jun 21, 1994·295 cites·8 claims
- 1697US5210540AGlobal positioning systemPIONEER ELECTRONIC CORP·Filed 1992·Granted May 11, 1993·304 cites·10 claims
- 1797US4677602ADevice for controlling recording track jump operations with over-run correctionPIONEER ELECTRONIC CORP·Filed 1984·Granted Jun 30, 1987·106 cites·6 claims
- 1897USD254252SLoudspeakerPIONEER ELECTRONIC CORP·Filed 1978·Granted Feb 19, 1980·51 cites·1 claims
- 1996US6370091B1Recording medium having multiple recording layers and method and apparatus for recording and reproducing information on the recording mediumPIONEER ELECTRONIC CORP·Filed 1998·Granted Apr 9, 2002·112 cites·9 claims
- 2096US6252838B1Information recording method and apparatus with additional recording functionPIONEER ELECTRONIC CORP·Filed 1997·Granted Jun 26, 2001·84 cites·18 claims
- 2196US6172957B1Optical pickup and multi-layer disc playback apparatusPIONEER ELECTRONIC CORP·Filed 1998·Granted Jan 9, 2001·110 cites·12 claims
- 2296US6031962AInformation record medium, apparatus for recording the same and apparatus for reproducing the samePIONEER ELECTRONIC CORP·Filed 1997·Granted Feb 29, 2000·100 cites·15 claims
- 2396US5882761AOrganic EL elementPIONEER ELECTRONIC CORP·Filed 1996·Granted Mar 16, 1999·633 cites·15 claims
- 2496US5757343AApparatus allowing continuous adjustment of luminance of a plasma display panelPIONEER ELECTRONIC CORP·Filed 1996·Granted May 26, 1998·202 cites·3 claims
- 2596US5608698ADisk player which avoids sound failure resulted from retry of data readingPIONEER ELECTRONIC CORP·Filed 1995·Granted Mar 4, 1997·248 cites·3 claims
- 2696US5457565AOrganic electroluminescent devicePIONEER ELECTRONIC CORP·Filed 1993·Granted Oct 10, 1995·261 cites·12 claims
- 2796US5245600AApparatus for reproducing from a storage medium information corresponding to each stored musical arrangement and for mixing voice data with music dataPIONEER ELECTRONIC CORP·Filed 1991·Granted Sep 14, 1993·122 cites·11 claims
- 2896US5243529ANavigation apparatusPIONEER ELECTRONIC CORP·Filed 1992·Granted Sep 7, 1993·179 cites·4 claims
- 2996US5187589AMultiprogram video tape recording and reproducing devicePIONEER ELECTRONIC CORP·Filed 1991·Granted Feb 16, 1993·544 cites·41 claims
- 3096US5126996AOptical information record carrier and the method of producing the samePIONEER ELECTRONIC CORP·Filed 1989·Granted Jun 30, 1992·85 cites·13 claims
- 3196US5036503ADisc recording and/or playback apparatus with automatic changerPIONEER ELECTRONIC CORP·Filed 1988·Granted Jul 30, 1991·110 cites·12 claims
- 3296US5009490APhoto-conductive liquid crystal light valvePIONEER ELECTRONIC CORP·Filed 1989·Granted Apr 23, 1991·175 cites·2 claims
- 3396US4989195ADisk recording/reproducing system using disk identification signal to retrieve stored control parametersPIONEER ELECTRONIC CORP·Filed 1988·Granted Jan 29, 1991·81 cites·10 claims
- 3496US4949048APulse width modulation amplifier circuitPIONEER ELECTRONIC CORP·Filed 1989·Granted Aug 14, 1990·77 cites·5 claims
- 3596US4455570ACATV SystemPIONEER ELECTRONIC CORP·Filed 1981·Granted Jun 19, 1984·179 cites·7 claims
- 3696US4408345ARemote line monitoring method and device for CATV systemPIONEER ELECTRONIC CORP·Filed 1980·Granted Oct 4, 1983·141 cites·6 claims
- 3796US4245245AInteractive CATV systemPIONEER ELECTRONIC CORP·Filed 1976·Granted Jan 13, 1981·403 cites·22 claims
- 3896USD254490SLoudspeaker with grillePIONEER ELECTRONIC CORP·Filed 1978·Granted Mar 18, 1980·44 cites·1 claims
- 3996US4088915ACurved polymeric piezoelectric electro-acoustic transducerPIONEER ELECTRONIC CORP·Filed 1976·Granted May 9, 1978·101 cites·6 claims
- 4096US4008408APiezoelectric electro-acoustic transducerPIONEER ELECTRONIC CORP·Filed 1975·Granted Feb 15, 1977·97 cites·2 claims
- 4195US6859421B2Apparatus for reproducing information from record medium on which audio information of differing recording methods is recordedPIONEER ELECTRONIC CORP·Filed 2002·Granted Feb 22, 2005·46 cites·28 claims
- 4295US6735155B2Information recording method and apparatus with additional recording functionPIONEER ELECTRONIC CORP·Filed 2001·Granted May 11, 2004·33 cites·17 claims
- 4395US5990605AElectron emission device and display device using the samePIONEER ELECTRONIC CORP·Filed 1998·Granted Nov 23, 1999·112 cites·11 claims
- 4495US5764610AOptical disk type identification system using a frequency detectorPIONEER ELECTRONIC CORP·Filed 1997·Granted Jun 9, 1998·107 cites·12 claims
- 4595US5742129AOrganic electroluminescent display panel with projecting ramparts and method for manufacturing the samePIONEER ELECTRONIC CORP·Filed 1996·Granted Apr 21, 1998·467 cites·15 claims
- 4695US5734637AOptical pickup used with both DVD and CDPIONEER ELECTRONIC CORP·Filed 1996·Granted Mar 31, 1998·102 cites·11 claims
- 4795US5675570AOptical disc having indication portionPIONEER ELECTRONIC CORP·Filed 1995·Granted Oct 7, 1997·117 cites·7 claims
- 4895US5640068ASurface discharge plasma displayPIONEER ELECTRONIC CORP·Filed 1995·Granted Jun 17, 1997·111 cites·5 claims
- 4995US5485452AOptical information recording mediumPIONEER ELECTRONIC CORP·Filed 1994·Granted Jan 16, 1996·90 cites·5 claims
- 5095US5442557ANavigation devicePIONEER ELECTRONIC CORP·Filed 1992·Granted Aug 15, 1995·162 cites·7 claims
Showing the top 50 of 2,919 patent records by PatentIndex Score.
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