Inventor · disambiguated record
Naomasa Nakamura
Also filed as: NAKAMURA NAOMASA
67 granted patents·45 pending applications·355 citations·filing 1987–2013
99Inventor score
Top patents by PatentIndex Score
112 records- 0194US7214416B2Phase-change optical recording mediumTOSHIBA KK·Filed 2004·Granted May 8, 2007·37 cites·7 claims
- 0294US6554972B1Information recording medium and its manufacturing methodTOSHIBA KK·Filed 1999·Granted Apr 29, 2003·67 cites·4 claims
- 0390US7455951B2Information recording medium and its manufacturing methodTOSHIBA KK·Filed 2006·Granted Nov 25, 2008·8 cites·2 claims
- 0486US5396480AMethod and apparatus for recording information using an energy beam of power levels changed stepwiseTOSHIBA KK·Filed 1993·Granted Mar 7, 1995·39 cites·11 claims
- 0585US8137894B2Storage medium, reproducing method, and recording methodMORITA SEIJI·Filed 2006·Granted Mar 20, 2012·5 cites·2 claims
- 0684US7869339B2Multi-layer optical disc, information recording method and information reproducing methodTOSHIBA KK·Filed 2007·Granted Jan 11, 2011·3 cites·4 claims
- 0783US8139459B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted Mar 20, 2012·2 cites·3 claims
- 0883US8134899B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted Mar 13, 2012·2 cites·3 claims
- 0983US7110348B2Optical information recording mediumTOSHIBA KK·Filed 2005·Granted Sep 19, 2006·4 cites·5 claims
- 1082US8154970B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted Apr 10, 2012·2 cites·3 claims
- 1182US8154971B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted Apr 10, 2012·2 cites·3 claims
- 1282US8149672B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted Apr 3, 2012·2 cites·3 claims
- 1382US7995442B2Optical recording medium, information recording method, and information reproducing methodTOSHIBA KK·Filed 2010·Granted Aug 9, 2011·2 cites·3 claims
- 1482US6805935B2Optical recording mediumTOSHIBA KK·Filed 2003·Granted Oct 19, 2004·14 cites·16 claims
- 1581US7858166B2Phase change recording mediumTOSHIBA KK·Filed 2007·Granted Dec 28, 2010·4 cites·16 claims
- 1680US8218416B2Multi-layer optical disc, information recording method and information reproducing methodUMEZAWA KAZUYO·Filed 2010·Granted Jul 10, 2012·3 cites·4 claims
- 1780US6296915B1Optical recording mediumTOSHIBA KK·Filed 1999·Granted Oct 2, 2001·33 cites·14 claims
- 1879US7864654B2Optical recording medium, information recording method, and information reproducing methodTOSHIBA KK·Filed 2009·Granted Jan 4, 2011·2 cites·4 claims
- 1977US7294382B2Phase-change optical recording mediumTOSHIBA KK·Filed 2006·Granted Nov 13, 2007·2 cites·15 claims
- 2077US7291375B2Phase-change optical recording mediumTOSHIBA KK·Filed 2006·Granted Nov 6, 2007·2 cites·12 claims
- 2176US6944116B2Optical information recording mediumTOSHIBA KK·Filed 2002·Granted Sep 13, 2005·9 cites·6 claims
- 2276US5776574AOptical recording medium and optical recording/reproducing apparatusTOSHIBA KK·Filed 1995·Granted Jul 7, 1998·28 cites·19 claims
- 2374US8437242B2Optical recording medium for writing data using multiple pulsesUMEZAWA KAZUYO·Filed 2011·Granted May 7, 2013·2 cites·4 claims
- 2474US7510753B2Phase-change optical recording mediaTOSHIBA KK·Filed 2005·Granted Mar 31, 2009·2 cites·13 claims
- 2572US7570566B2Optical disc, optical disc manufacturing method, and optical disc apparatusTOSHIBA KK·Filed 2006·Granted Aug 4, 2009·2 cites·5 claims
- 2672US5431978AInformation recording medium and recording method using the sameTOSHIBA KK·Filed 1994·Granted Jul 11, 1995·28 cites·1 claims
- 2771US7767285B2Phase-change optical recording mediumTOSHIBA KK·Filed 2007·Granted Aug 3, 2010·1 cites·2 claims
- 2869US7715304B2Optical recording medium, information recording method, and information reproducing methodTOSHIBA KK·Filed 2007·Granted May 11, 2010·0 cites·3 claims
- 2969US7335459B2Phase-change optical recording mediumTOSHIBA KK·Filed 2003·Granted Feb 26, 2008·7 cites·18 claims
- 3069US6842419B2Optical information recording medium and optical disk driveTOSHIBA KK·Filed 2002·Granted Jan 11, 2005·7 cites·6 claims
- 3167US7477592B2Optical disc, optical disc apparatus, optical disk reproducing method, and digital work publicationTOSHIBA KK·Filed 2005·Granted Jan 13, 2009·1 cites·10 claims
- 3266US7357969B2Phase-change optical recording mediumTOSHIBA KK·Filed 2004·Granted Apr 15, 2008·6 cites·9 claims
- 3366US7132147B2Phase-change optical recording mediumTOSHIBA KK·Filed 2004·Granted Nov 7, 2006·4 cites·14 claims
- 3464US8355306B2Optical recording medium, information recording method, and information reproducing methodTOSHIBA KK·Filed 2011·Granted Jan 15, 2013·0 cites·3 claims
- 3563US8339916B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted Dec 25, 2012·0 cites·3 claims
- 3663US8264931B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted Sep 11, 2012·0 cites·3 claims
- 3763US8184517B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted May 22, 2012·0 cites·3 claims
- 3863US8179764B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted May 15, 2012·0 cites·3 claims
- 3963US8179765B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted May 15, 2012·0 cites·3 claims
- 4063US8174948B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted May 8, 2012·0 cites·3 claims
- 4163US8169874B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted May 1, 2012·0 cites·3 claims
- 4263US8169873B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted May 1, 2012·0 cites·3 claims
- 4363US8169872B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted May 1, 2012·0 cites·3 claims
- 4463US8165001B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted Apr 24, 2012·0 cites·3 claims
- 4563US8165000B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted Apr 24, 2012·0 cites·3 claims
- 4663US8159920B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted Apr 17, 2012·0 cites·3 claims
- 4763US8159921B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted Apr 17, 2012·0 cites·3 claims
- 4863US8149674B2Optical recording medium, information recording method, and information reproducing methodTAKAZAWA KOJI·Filed 2011·Granted Apr 3, 2012·0 cites·3 claims
- 4963US2008310280A1Information recording medium and disk apparatus using the mediumUMEZAWA KAZUYO·Filed 2008·Application pending·0 cites
- 5062US7778144B2Optical recording medium, information recording method, and information reproducing methodTOSHIBA KK·Filed 2007·Granted Aug 17, 2010·0 cites·14 claims
Showing the top 50 of 112 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Naomasa Nakamura files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →