Inventor · disambiguated record

Naoyasu Miyagawa

Also filed as: MIYAGAWA NAOYASU

54 granted patents·13 pending applications·830 citations·filing 1991–2012

98Inventor score

Technology areasG11B

Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD34 PANASONIC CORP16 NAKAMURA ATSUSHI5 ITO KIYOTAKA3 TAKAOKA TOMOYASU2

Top patents by PatentIndex Score

67 records

0198US5452284AOptical recording/reproducing medium and apparatus using land and groove encoded information signals and identification signals including position informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Sep 19, 1995·155 cites·33 claims
0298US5235581AOptical recording/reproducing apparatus for optical disks with various disk substrate thicknessesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Aug 10, 1993·127 cites·24 claims
0393US5745475AOptical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Apr 28, 1998·82 cites·16 claims
0492US6510116B1Optical information recording/reproducing method and optical information recording/reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jan 21, 2003·36 cites·14 claims
0592US6044051AOptical information recording/reproducing device and method for recording, reproducing and erasing information on an optical information recording medium utilizing light beam radiationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Mar 28, 2000·76 cites·13 claims
0690US7142496B2Optical information recording method, device, and recording medium with plural recording layersMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Nov 28, 2006·24 cites·26 claims
0790US5448551AOptical information recording media and optical information read/write deviceFiled 1994·Granted Sep 5, 1995·48 cites·28 claims
0887US6529457B1Optical information recording medium, optical information recording apparatus, and method of recording test signal on the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Mar 4, 2003·17 cites·44 claims
0987US6118752AOptical information recording medium offset pre-pit array indicating identification informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Sep 12, 2000·51 cites·14 claims
1087USRE36445EOptical recording/reproducing apparatus for optical disks with various disk substrate thicknessesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Dec 14, 1999·29 cites·24 claims
1186US5616390AOptical recording medium permitting detection of identification signals in land areas and groove areas, optical information recording/reproducing apparatus and apparatus for producing an original disk for forming a disk substrateMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Apr 1, 1997·42 cites·67 claims
1277US6487147B2Optical information recording medium and an optical information recording/reproduction deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Nov 26, 2002·10 cites·3 claims
1376US7463575B2Optical information recording medium, method for manufacturing the same, and initialization devicePANASONIC CORP·Filed 2006·Granted Dec 9, 2008·2 cites·4 claims
1474US6480449B1Optical information recording medium, optical information recording apparatus, and method of recording test signal on the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Nov 12, 2002·18 cites·10 claims
1574US5475662AOptical disc apparatus with tracking error compensationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Dec 12, 1995·23 cites·17 claims
1673US6893698B2Optical information recording medium, optical measuring method and optical information recording/reproducing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 17, 2005·9 cites·26 claims
1772US6532209B2Optical information recording medium and optical information recording and reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Mar 11, 2003·5 cites·1 claims
1872US5293367AOptical pickup head wherein an error signal is produced by detecting a phase difference in diffraction beams from a holographic optical elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Mar 8, 1994·21 cites·4 claims
1968US7701813B2Method for recording to and reproducing from an optical recording medium, optical recording medium, and recording and reproduction apparatus for the samePANASONIC CORP·Filed 2005·Granted Apr 20, 2010·1 cites·6 claims
2066US6526013B1Optical information recording medium, optical information recording apparatus, and method of recording test signal on the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Feb 25, 2003·4 cites·20 claims
2166US6411592B1Optical information recording medium having convex and concave portions for recording information and an additional portion for condition data, and recording and reproducing apparatus for using the mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Jun 25, 2002·11 cites·10 claims
2264US7116623B2Optical information recording method, optical information recording device and optical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Oct 3, 2006·5 cites·28 claims
2364US6744706B2Optical system with tracking controllerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jun 1, 2004·5 cites·1 claims
2462US7492687B2Optical information recording method, optical information recording and reproducing device, and optical information recording mediumPANASONIC CORP·Filed 2007·Granted Feb 17, 2009·0 cites·8 claims
2561US7450480B2Optical information recording method, optical information recording device and optical information recording mediumPANASONIC CORP·Filed 2004·Granted Nov 11, 2008·4 cites·7 claims
2658USRE40017EOptical recording/reproducing apparatus for optical disks with various disk substrate thicknessesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jan 22, 2008·1 cites·28 claims
2758US7002890B2High density analog recording using write symbols having distinguishable readout waveformsLSI LOGIC CORP·Filed 2001·Granted Feb 21, 2006·3 cites·30 claims
2858US6526012B1Optical information recording medium, optical information recording apparatus, and method of recording test signal on the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Feb 25, 2003·2 cites·22 claims
2958US5835479AOptical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Nov 10, 1998·13 cites·3 claims
3057US7292525B2Optical information recording method and apparatus for multiple recording layer mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Nov 6, 2007·0 cites·18 claims
3157US7095705B2Optical information recording medium and optical information recording and reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Aug 22, 2006·0 cites·1 claims
3255US8259556B2Information recording medium, recording apparatus, reproducing apparatus and reproducing methodTAKAOKA TOMOYASU·Filed 2009·Granted Sep 4, 2012·0 cites·8 claims
3355US8233367B2Method and device for optical recording onto optical disc mediumNAKAMURA ATSUSHI·Filed 2005·Granted Jul 31, 2012·0 cites·4 claims
3455US6667937B2Optical information recording medium and optical information recording and reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Dec 23, 2003·1 cites·1 claims
3555US2010172226A1Information recording medium, reproduction apparatus and recording apparatusPANASONIC CORP·Filed 2009·Application pending·0 cites
3655US2011096643A1Information recording medium, recording device and reproducing deviceNAKAMURA ATSUSHI·Filed 2009·Application pending·0 cites
3754US8295139B2Method and device for optical recording onto optical disc mediumNAKAMURA ATSUSHI·Filed 2011·Granted Oct 23, 2012·0 cites·3 claims
3854US2010195458A1Information recording medium, recording apparatus, reproducing apparatus and reproducing methodPANASONIC CORP·Filed 2009·Application pending·0 cites
3953US8089844B2Method and device for optical recording onto optical disc mediumNAKAMURA ATSUSHI·Filed 2010·Granted Jan 3, 2012·0 cites·4 claims
4053US8000177B2Reading device and reading method for an optical data recording mediumPANASONIC CORP·Filed 2007·Granted Aug 16, 2011·0 cites·25 claims
4153US2010135141A1Information recording medium and method for reproducing the information from the samePANASONIC CORP·Filed 2008·Application pending·0 cites
4253US2010103793A1Multilayer optical information recording medium, method for recording information in the multilayer optical information recording medium, recording/reproducing apparatusPANASONIC CORP·Filed 2008·Application pending·0 cites
4351US7830779B2Method of recording information, equipment thereof and information recording mediumPANASONIC CORP·Filed 2004·Granted Nov 9, 2010·1 cites·11 claims
4450US7636295B2Optical information recording medium and optical information recording/reproducing systemPANASONIC CORP·Filed 2005·Granted Dec 22, 2009·0 cites·2 claims
4549US7764592B2Optical recording medium, method for manufacturing the same, recording/playback method, and recording/playback apparatusPANASONIC CORP·Filed 2005·Granted Jul 27, 2010·0 cites·17 claims
4649USRE39883EOptical recording/reproducing apparatus for optical disks with various disk substrate thicknessesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Oct 16, 2007·0 cites·29 claims
4749USRE39860EOptical recording/reproducing apparatus for optical disks with various disk substrate thicknessesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Sep 25, 2007·0 cites·30 claims
4848US6975579B2Optical information recording medium and optical information recording and reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Dec 13, 2005·0 cites·3 claims
4944US7292514B2Apparatus for recording information in information recording medium, information recording medium, method for recording information in information recording medium, program for recording information in information recording medium, and program productMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Nov 6, 2007·0 cites·30 claims
5044US2005117481A1Method and device for recording information on optical information recording medium and the medium itselfFiled 2004·Application pending·0 cites

Showing the top 50 of 67 patent records by PatentIndex Score.

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →