Inventor · disambiguated record
Tsukasa Nakai
Also filed as: ICHIHARA LEGAL REPRESENTATIVE · NAKAI TSUKASA
44 granted patents·13 pending applications·264 citations·filing 2004–2018
97Inventor score
Top patents by PatentIndex Score
57 records- 0195US8264866B2Nonvolatile memory device and method for manufacturing sameFUKUMIZU HIROYUKI·Filed 2010·Granted Sep 11, 2012·28 cites·16 claims
- 0294US9018682B2Semiconductor memory deviceTOSHIBA KK·Filed 2013·Granted Apr 28, 2015·17 cites·20 claims
- 0394US7214416B2Phase-change optical recording mediumTOSHIBA KK·Filed 2004·Granted May 8, 2007·37 cites·7 claims
- 0493US9136468B2Nonvolatile semiconductor memory deviceTOSHIBA KK·Filed 2013·Granted Sep 15, 2015·10 cites·20 claims
- 0592US9030881B2Nonvolatile semiconductor memory deviceTOSHIBA KK·Filed 2013·Granted May 12, 2015·15 cites·19 claims
- 0691US9536894B2Non-volatile memory deviceTOSHIBA KK·Filed 2015·Granted Jan 3, 2017·9 cites·1 claims
- 0791US8334525B2Nonvolatile semiconductor memory device including a variable resistance layer including carbonNAKAI TSUKASA·Filed 2010·Granted Dec 18, 2012·20 cites·17 claims
- 0890US8339834B2Non-volatile semiconductor memory device including a variable resistance elementNAKAI TSUKASA·Filed 2010·Granted Dec 25, 2012·21 cites·20 claims
- 0987US8207518B2Information recording and reproducing deviceKUBO KOHICHI·Filed 2010·Granted Jun 26, 2012·8 cites·20 claims
- 1085US8809931B2Nonvolatile semiconductor memory deviceTOSHIBA KK·Filed 2013·Granted Aug 19, 2014·9 cites·13 claims
- 1185US8089796B2Information recording and reproducing deviceTSUKAMOTO TAKAYUKI·Filed 2010·Granted Jan 3, 2012·10 cites·20 claims
- 1285US7542404B2Optical recording mediaTOSHIBA KK·Filed 2005·Granted Jun 2, 2009·6 cites·22 claims
- 1383US9379164B2Integrated circuit deviceTOSHIBA KK·Filed 2015·Granted Jun 28, 2016·5 cites·23 claims
- 1481US7858166B2Phase change recording mediumTOSHIBA KK·Filed 2007·Granted Dec 28, 2010·4 cites·16 claims
- 1578US8395138B2Nonvolatile semiconductor memory having buffer layer containing nitrogen and containing carbon as main componentYAMAMOTO KAZUHIKO·Filed 2009·Granted Mar 12, 2013·9 cites·13 claims
- 1678US8378331B2Nonvolatile semiconductor memory deviceTOSHIBA KK·Filed 2010·Granted Feb 19, 2013·4 cites·17 claims
- 1778US7510990B2Sputtering target, optical thin film and manufacturing method thereof using the sputtering target, and optical recording mediumTOSHIBA KK·Filed 2006·Granted Mar 31, 2009·3 cites·10 claims
- 1877US7294382B2Phase-change optical recording mediumTOSHIBA KK·Filed 2006·Granted Nov 13, 2007·2 cites·15 claims
- 1977US7291375B2Phase-change optical recording mediumTOSHIBA KK·Filed 2006·Granted Nov 6, 2007·2 cites·12 claims
- 2076US9450026B2Semiconductor deviceTOSHIBA KK·Filed 2014·Granted Sep 20, 2016·4 cites·13 claims
- 2176US8269205B2Information recording and reproducing deviceKUBO KOHICHI·Filed 2010·Granted Sep 18, 2012·4 cites·19 claims
- 2274US9287499B2Integrated circuit deviceTOSHIBA KK·Filed 2014·Granted Mar 15, 2016·2 cites·20 claims
- 2374US8581424B2Information recording/reproducing deviceHIRAI TAKAHIRO·Filed 2011·Granted Nov 12, 2013·5 cites·16 claims
- 2474US7510753B2Phase-change optical recording mediaTOSHIBA KK·Filed 2005·Granted Mar 31, 2009·2 cites·13 claims
- 2572US9142771B2Superlattice phase change memory deviceTOSHIBA KK·Filed 2013·Granted Sep 22, 2015·3 cites·14 claims
- 2671US7767285B2Phase-change optical recording mediumTOSHIBA KK·Filed 2007·Granted Aug 3, 2010·1 cites·2 claims
- 2768US8964459B2Magnetoresistive element and writing method of magnetic memoryTOSHIBA KK·Filed 2013·Granted Feb 24, 2015·3 cites·17 claims
- 2867US9019777B2Nonvolatile semiconductor memory device and operating method of the sameTOSHIBA KK·Filed 2013·Granted Apr 28, 2015·3 cites·20 claims
- 2967US8232042B2Storage medium, reproducing method, and recording methodNAKAI TSUKASA·Filed 2006·Granted Jul 31, 2012·1 cites·6 claims
- 3066US9570514B2Semiconductor deviceTOSHIBA KK·Filed 2014·Granted Feb 14, 2017·1 cites·9 claims
- 3166US7357969B2Phase-change optical recording mediumTOSHIBA KK·Filed 2004·Granted Apr 15, 2008·6 cites·9 claims
- 3266US7132147B2Phase-change optical recording mediumTOSHIBA KK·Filed 2004·Granted Nov 7, 2006·4 cites·14 claims
- 3364US9536616B1Non-volatile memory device and method for reading out dataTOSHIBA KK·Filed 2015·Granted Jan 3, 2017·1 cites·12 claims
- 3464US8431920B2Information recording and reproducing device for high-recording densityKAMATA CHIKAYOSHI·Filed 2010·Granted Apr 30, 2013·3 cites·10 claims
- 3559US9076685B2Semiconductor memory device and method for manufacturing the sameTOSHIBA KK·Filed 2013·Granted Jul 7, 2015·1 cites·11 claims
- 3656US2006275577A1Phase-change optical recording mediumTOSHIBA KK·Filed 2006·Application pending·0 cites
- 3753US2009196142A1Information recording medium, information recording method, and information recording and reproducing apparatusTOSHIBA KK·Filed 2009·Application pending·0 cites
- 3852US8487345B2Information recording and reproducing deviceTSUKAMOTO TAKAYUKI·Filed 2010·Granted Jul 16, 2013·1 cites·19 claims
- 3952US7736715B2Optical recording medium, and information recording/playback apparatus and method using the mediumTOSHIBA KK·Filed 2006·Granted Jun 15, 2010·0 cites·20 claims
- 4052US7643397B2Phase-change optical recording media and optical recording-reproducing apparatusTOSHIBA KK·Filed 2005·Granted Jan 5, 2010·0 cites·9 claims
- 4152US2008225681A1Optical recording mediumTOSHIBA KK·Filed 2008·Application pending·0 cites
- 4251US2008019261A1Information recording medium, information recording/playback apparatus, inspection method of information recording medium, and inspection apparatus of information recording mediumTOSHIBA KK·Filed 2007·Application pending·0 cites
- 4350US2009141615A1Optical recording mediumNAKAI TSUKASA·Filed 2008·Application pending·0 cites
- 4449US2007230321A1Optical disk and optical disk deviceOOMACHI NORITAKE·Filed 2007·Application pending·0 cites
- 4548US2007217319A1Optical disk and optical disk deviceOOMACHI NORITAKE·Filed 2007·Application pending·0 cites
- 4648US2007248785A1Optical recording medium, information recording and reproducing apparatus, and information recording and reproducing methodNAKAI TSUKASA·Filed 2007·Application pending·0 cites
- 4745US2006068151A1Optical recording mediaASHIDA SUMIO·Filed 2005·Application pending·0 cites
- 4845US2011303888A1Nonvolatile memory deviceFUKUMIZU HIROYUKI·Filed 2011·Application pending·0 cites
- 4944US2005265185A1Optical disc apparatus and information playback methodKASHIHARA YUTAKA·Filed 2005·Application pending·0 cites
- 5040US10345336B2Scanning probe microscope and measurement method using the sameTOSHIBA MEMORY CORP·Filed 2016·Granted Jul 9, 2019·0 cites·12 claims
Showing the top 50 of 57 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Tsukasa Nakai 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 →