Inventor · disambiguated record
Masatoshi Sakurai
Also filed as: SAKURAI MASATOSHI
119 granted patents·67 pending applications·1,257 citations·filing 1987–2020
99Inventor score
Top patents by PatentIndex Score
186 records- 0198US6977108B2Recording medium including patterned tracks and isolation regionsTOSHIBA KK·Filed 2002·Granted Dec 20, 2005·114 cites·18 claims
- 0297US6310282B1Photovoltaic conversion element and a dye-sensitizing photovoltaic cellTOSHIBA KK·Filed 2000·Granted Oct 30, 2001·135 cites·22 claims
- 0396US7572528B2Magnetic recording medium, method of manufacturing the same, and magnetic recording/reproduction apparatusTOSHIBA KK·Filed 2005·Granted Aug 11, 2009·22 cites·4 claims
- 0496US6748865B2Nano-imprinting method, magnetic printing method and recording mediumTOSHIBA KK·Filed 2002·Granted Jun 15, 2004·85 cites·9 claims
- 0595US7388725B2Magnetic recording media, method of manufacturing the same and magnetic recording apparatusTOSHIBA KK·Filed 2005·Granted Jun 17, 2008·20 cites·13 claims
- 0695US7345838B2Magnetic recording media and magnetic recording and reproducing apparatusTOSHIBA KK·Filed 2005·Granted Mar 18, 2008·23 cites·10 claims
- 0795US7067207B2Magnetic recording medium having a patterned soft magnetic layerTOSHIBA KK·Filed 2003·Granted Jun 27, 2006·93 cites·10 claims
- 0894US6309738B1Hard multilayer coated tool having increased toughnessOSG CORP·Filed 1998·Granted Oct 30, 2001·112 cites·19 claims
- 0993US7503123B2Surveying apparatusPENTAX IND INSTR CO LTD·Filed 2007·Granted Mar 17, 2009·56 cites·5 claims
- 1092US7708543B2Stamper for magnetic recording media, method of manufacturing magnetic recording media using the same, and method of manufacturing stamper for magnetic recording mediaTOSHIBA KK·Filed 2006·Granted May 4, 2010·13 cites·3 claims
- 1191US7826176B2Magnetic recording medium with thicker protective film in edge areas and magnetic recording apparatus using the mediumTOSHIBA KK·Filed 2007·Granted Nov 2, 2010·11 cites·8 claims
- 1291US7782562B2Magnetic recording media and magnetic recording deviceTOSHIBA KK·Filed 2006·Granted Aug 24, 2010·12 cites·9 claims
- 1391US7760467B2Substrate for magnetic recording medium, magnetic recording medium, and magnetic recording apparatusTOSHIBA KK·Filed 2006·Granted Jul 20, 2010·9 cites·10 claims
- 1490US8300340B2Magnetic recording mediumSAKURAI MASATOSHI·Filed 2011·Granted Oct 30, 2012·15 cites·5 claims
- 1590US7575705B2Method for manufacturing a magnetic recording medium utilizing first and second imprint stampersTOSHIBA KK·Filed 2007·Granted Aug 18, 2009·9 cites·4 claims
- 1689US8206602B2Method of manufacturing magnetic recording mediumKIMURA KAORI·Filed 2010·Granted Jun 26, 2012·7 cites·17 claims
- 1789US7898768B2Patterned medium with magnetic pattern depth relationshipTOSHIBA KK·Filed 2007·Granted Mar 1, 2011·8 cites·8 claims
- 1889US7662264B2Method for producing magnetic recording mediumTOSHIBA KK·Filed 2006·Granted Feb 16, 2010·9 cites·12 claims
- 1988US8829070B2Ultraviolet-curable resin material for pattern transfer and magnetic recording medium manufacturing method using the sameMORITA KAZUYO·Filed 2010·Granted Sep 9, 2014·14 cites·5 claims
- 2088US8300341B2Magnetic recording device, magnetic recording method, and magnetic storage mediumITAKURA AKIHIRO·Filed 2011·Granted Oct 30, 2012·12 cites·8 claims
- 2187US7894155B2Magnetic recording medium, method of fabricating the same, and magnetic recording apparatusTOSHIBA KK·Filed 2007·Granted Feb 22, 2011·6 cites·1 claims
- 2287US7314833B2Method for manufacturing substrate for discrete track recording media and method for manufacturing discrete track recording mediaTOSHIBA KK·Filed 2006·Granted Jan 1, 2008·7 cites·4 claims
- 2387US7306743B2Recording medium, method of manufacturing recording medium and recording apparatusTOSHIBA KK·Filed 2006·Granted Dec 11, 2007·13 cites·10 claims
- 2487US7115208B2Method of manufacturing recording mediumTOSHIBA KK·Filed 2004·Granted Oct 3, 2006·16 cites·11 claims
- 2586US7504149B2Hard multilayer coating, and hard multilayer coated tool including the hard multilayer coatingOSG CORP·Filed 2006·Granted Mar 17, 2009·20 cites·10 claims
- 2685US7936537B2Substrate for magnetic recording medium, magnetic recording medium, and magnetic recording and reproducing apparatusTOSHIBA KK·Filed 2009·Granted May 3, 2011·4 cites·10 claims
- 2785US7738213B2Magnetic disk medium, reticle and magnetic recording and reproducing apparatusTOSHIBA KK·Filed 2006·Granted Jun 15, 2010·6 cites·18 claims
- 2885US7635529B2Substrate for magnetic recording media, magnetic recording media and magnetic recording apparatusSHOWA DENKO KK·Filed 2006·Granted Dec 22, 2009·6 cites·7 claims
- 2985US7618549B2Method of forming patterns and method of manufacturing magnetic recording mediaTOSHIBA KK·Filed 2006·Granted Nov 17, 2009·6 cites·12 claims
- 3084US8012361B2Method of manufacturing magnetic recording mediumTOSHIBA KK·Filed 2010·Granted Sep 6, 2011·4 cites·12 claims
- 3183US7967993B2Method of manufacturing magnetic recording mediumTOSHIBA KK·Filed 2009·Granted Jun 28, 2011·5 cites·1 claims
- 3283US7203969B2Recording medium, recording-medium management method, and recording-medium management systemTOSHIBA KK·Filed 2003·Granted Apr 10, 2007·16 cites·21 claims
- 3382US7978434B2Magnetic recording medium, method of fabricating the same, and magnetic recording apparatusTOSHIBA KK·Filed 2007·Granted Jul 12, 2011·4 cites·13 claims
- 3481US9488541B2Pressure sensor, microphone, and acoustic processing systemTOSHIBA KK·Filed 2014·Granted Nov 8, 2016·6 cites·18 claims
- 3581US8002997B2Method of manufacturing magnetic recording medium and magnetic recording mediumTOSHIBA KK·Filed 2009·Granted Aug 23, 2011·3 cites·18 claims
- 3681US7580223B2Magnetic recording media, substrate for magnetic recording media, and magnetic recording apparatusTOSHIBA KK·Filed 2006·Granted Aug 25, 2009·4 cites·10 claims
- 3778US8116022B2Magnetic recording apparatus, magnetic recording medium, and method of testing magnetic recording apparatusSAKURAI MASATOSHI·Filed 2010·Granted Feb 14, 2012·4 cites·6 claims
- 3878US7972523B2Method of manufacturing magnetic recording mediumTOSHIBA KK·Filed 2009·Granted Jul 5, 2011·3 cites·19 claims
- 3978US7833458B2Imprinting method and stamperTOSHIBA KK·Filed 2009·Granted Nov 16, 2010·4 cites·1 claims
- 4078US7412926B2Imprint apparatus and imprint methodTOSHIBA KK·Filed 2005·Granted Aug 19, 2008·6 cites·17 claims
- 4178US6517688B2Method of smoothing diamond coating, and method of manufacturing diamond-coated bodyOSG CORP·Filed 2001·Granted Feb 11, 2003·16 cites·19 claims
- 4277US8173029B2Magnetic recording medium manufacturing methodMORITA SEIJI·Filed 2010·Granted May 8, 2012·3 cites·6 claims
- 4376US8043516B2Method of manufacturing magnetic recording medium and magnetic recording mediumTOSHIBA KK·Filed 2009·Granted Oct 25, 2011·2 cites·2 claims
- 4476US7923136B2Magnetic recording medium and method of manufacturing the sameTOSHIBA KK·Filed 2009·Granted Apr 12, 2011·2 cites·19 claims
- 4575US10227687B2Hard lubricating coating film and hard lubricating coating film-covered toolWANG MEI·Filed 2013·Granted Mar 12, 2019·1 cites·5 claims
- 4675US7848046B2Magnetic disk apparatusTOSHIBA KK·Filed 2007·Granted Dec 7, 2010·4 cites·2 claims
- 4775US7738203B2Magnetic recording medium Formatted with ROM and RAM regionsTOSHIBA KK·Filed 2005·Granted Jun 15, 2010·2 cites·7 claims
- 4875US7033643B2Process of manufacturing a coated bodyOSG CORP·Filed 2003·Granted Apr 25, 2006·17 cites·3 claims
- 4974US7623311B2Recording media, recording and reproducing apparatus, and method for recording and reproducingTOSHIBA KK·Filed 2006·Granted Nov 24, 2009·2 cites·14 claims
- 5074US5336089ADental handpiecePROMIDENT MANUFACTURING LIMITE·Filed 1993·Granted Aug 9, 1994·56 cites·4 claims
Showing the top 50 of 186 patent records by PatentIndex Score.
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