Inventor · disambiguated record
Ken'Ichi Nagata
Also filed as: NAGATA KEN ICHI
42 granted patents·5 pending applications·1,083 citations·filing 1992–2006
98Inventor score
Top patents by PatentIndex Score
47 records- 0198US6456584B1Optical information recording medium comprising a first layer having a phase that is reversibly changeable and a second information layer having a phase that is reversibly changeableMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Sep 24, 2002·170 cites·20 claims
- 0297US5764619AOptical recording medium having two separate recording layersMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Jun 9, 1998·123 cites·24 claims
- 0395US6795389B1Optical information recording medium with substrate and multiple informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Sep 21, 2004·86 cites·3 claims
- 0493US6894962B1Optical information recording medium with sector address informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted May 17, 2005·70 cites·25 claims
- 0593US6434095B1Optical information recording medium, manufacturing method therefor, manufacturing apparatus therefor, and optical information recording and reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Aug 13, 2002·25 cites·5 claims
- 0691US6771587B2Optical information recording medium, with plural information layersMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Aug 3, 2004·22 cites·7 claims
- 0791US6487151B1Optical information recording and reproducing system with overwrite capability and recording medium for use therewithMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Nov 26, 2002·47 cites·24 claims
- 0891US6229785B1Optical information recording medium, its manufacturing method, optical information recording/reproducing method and optical information recorder/reproducerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted May 8, 2001·66 cites·30 claims
- 0991US5493561AOptical information recording medium and information recording and reproducing method thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Feb 20, 1996·54 cites·18 claims
- 1090US6611491B2Optical recording medium having dual recording layersMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Aug 26, 2003·18 cites·4 claims
- 1190US6031814AOptical disk with stop-pulse generating means in a guide grooveMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Feb 29, 2000·42 cites·2 claims
- 1288US6707776B2Recording and reproducing method of optical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Mar 16, 2004·16 cites·11 claims
- 1386US6807142B1Optical information recording medium and method for initializing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Oct 19, 2004·23 cites·23 claims
- 1485US6933031B2Optical information recording medium and its manufacturing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Aug 23, 2005·18 cites·13 claims
- 1584US7116631B2Optical information recording medium manfacturing method therefor, manufacturing apparatus therefor, and optical information recording and reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Oct 3, 2006·3 cites·7 claims
- 1684US6449239B1Optical information recording medium with thermal diffusion layerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Sep 10, 2002·42 cites·13 claims
- 1782US6514591B1Optical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Feb 4, 2003·14 cites·18 claims
- 1881US7136349B2Multi-layer optical information recording medium with pits or groovesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Nov 14, 2006·8 cites·5 claims
- 1981US6821707B2Optical information recording medium, producing method thereof and method of recording/erasing/reproducing informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Nov 23, 2004·27 cites·42 claims
- 2081US5410534AOptical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Apr 25, 1995·33 cites·10 claims
- 2180US6226239B1Optical information recording and reproducing apparatus for multiple layer recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted May 1, 2001·19 cites·3 claims
- 2280US5681632AOptical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Oct 28, 1997·36 cites·19 claims
- 2380US5249175AOptical information recording medium and information recording and reproducing method thereforMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Sep 28, 1993·30 cites·22 claims
- 2476US7169533B2Optical information recording medium, method for manufacturing the same and recording/reproduction methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jan 30, 2007·11 cites·15 claims
- 2576US7037413B1Optical information recording medium, producing method thereof and method of recording/erasing/reproducing informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted May 2, 2006·9 cites·4 claims
- 2670US7376070B2Optical information recording medium and method for manufacturing the mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted May 20, 2008·7 cites·32 claims
- 2766US7106686B2Optical information recording medium, method of manufacturing thereof, and method of recording and reproductionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 12, 2006·4 cites·4 claims
- 2864US7154841B2Optical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Dec 26, 2006·5 cites·15 claims
- 2963US6663934B2Optical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Dec 16, 2003·4 cites·20 claims
- 3063US5273861AOptical information recording medium, method of making an optical information recording medium and method of recording/reproducing optical informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Dec 28, 1993·12 cites·6 claims
- 3162US6027594AMethod of manufacturing optical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Feb 22, 2000·12 cites·6 claims
- 3260US6744724B2Recording and reproducing method for optical information recording medium and optical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jun 1, 2004·3 cites·15 claims
- 3360US6697313B2Optical information recording and reproducing system with overwrite capability and recording medium for use therewithMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Feb 24, 2004·2 cites·3 claims
- 3460US6683739B2Optical information recording and reproducing system with overwrite capability and recording medium for use therewithMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jan 27, 2004·2 cites·10 claims
- 3556US7169455B2Optical information recording medium and method for manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jan 30, 2007·2 cites·26 claims
- 3655US6388984B2Optical information recording medium and its recording and reproducing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted May 14, 2002·11 cites·25 claims
- 3749US7645499B2Optical information recording medium and manufacturing method thereofPANASONIC CORP·Filed 2003·Granted Jan 12, 2010·1 cites·6 claims
- 3847US2004213126A1Optical information recording medium, method of manufacturing thereof, and method of recording and reproductionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Application pending·0 cites
- 3947US2005089799A1Optical information recording medium, producing method thereof and method of recording/erasing/reproducing informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Application pending·0 cites
- 4045US7423957B2Optical information recording medium and method of manufacturing thereof, manufacturing apparatus, recording/reproducing method, and recording/reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 9, 2008·0 cites·27 claims
- 4144US7540006B2Optical information recording medium and manufacture method thereofPANASONIC CORP·Filed 2004·Granted May 26, 2009·0 cites·8 claims
- 4244US7014904B2Optical information recording medium and method for manufacturing the mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Mar 21, 2006·0 cites·19 claims
- 4342US2004228259A1Optical information recording medium and method for producing the sameFiled 2004·Application pending·0 cites
- 4441US6587420B1Recording and reproducing method for optical information recording medium and optical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jul 1, 2003·4 cites·12 claims
- 4541US2006083150A1Optical information recording medium and method for manufacturing sameSAKAUE YOSHITAKA·Filed 2003·Application pending·0 cites
- 4639US2006190957A1Optical information recording medium and process for producing the sameHABUTA HARUHIKO·Filed 2004·Application pending·0 cites
- 4736US5449589AMethod of making an optical information recording medium and method of recording/reproducing optical informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Sep 12, 1995·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →