Assignee
SAKURAI MASATOSHI
JP·15 granted patents·7 pending applications·32 citations·filing 2007–2013
Top patents by PatentIndex Score
22 records- 0190US8300340B2Magnetic recording mediumSAKURAI MASATOSHI·Filed 2011·Granted Oct 30, 2012·15 cites·5 claims
- 0278US8116022B2Magnetic recording apparatus, magnetic recording medium, and method of testing magnetic recording apparatusSAKURAI MASATOSHI·Filed 2010·Granted Feb 14, 2012·4 cites·6 claims
- 0372US9551062B2Hard film for machining tools and hard film-coated metal machining toolSAKURAI MASATOSHI·Filed 2013·Granted Jan 24, 2017·1 cites·7 claims
- 0471US8077416B2Magnetic recording medium formatted with ROM and RAM regionsSAKURAI MASATOSHI·Filed 2010·Granted Dec 13, 2011·2 cites·8 claims
- 0570US8778162B2Stamper and method of manufacturing the sameSAKURAI MASATOSHI·Filed 2011·Granted Jul 15, 2014·2 cites·6 claims
- 0669US8419952B2Method of manufacturing magnetic recording medium and magnetic recording apparatusSAKURAI MASATOSHI·Filed 2011·Granted Apr 16, 2013·2 cites·15 claims
- 0769US8318331B2Magnetic recording medium, method for manufacturing the same, and magnetic recording apparatusSAKURAI MASATOSHI·Filed 2007·Granted Nov 27, 2012·1 cites·8 claims
- 0868US8333899B2Method of manufacturing magnetic recording mediumSAKURAI MASATOSHI·Filed 2011·Granted Dec 18, 2012·2 cites·10 claims
- 0966US8289645B2Magnetic disk apparatusSAKURAI MASATOSHI·Filed 2010·Granted Oct 16, 2012·1 cites·2 claims
- 1065US8293387B2Magnetic recording medium and method of manufacturing the sameSAKURAI MASATOSHI·Filed 2009·Granted Oct 23, 2012·0 cites·3 claims
- 1164US8748017B2Magnetic recording mediumSAKURAI MASATOSHI·Filed 2011·Granted Jun 10, 2014·1 cites·12 claims
- 1264US8308965B2Stamper, method of manufacturing the stamper, and magnetic recording medium manufacturing method using the stamperSAKURAI MASATOSHI·Filed 2011·Granted Nov 13, 2012·1 cites·7 claims
- 1355US9409238B2Hard coating for cutting tool, and cutting tool coated with hard coatingSAKURAI MASATOSHI·Filed 2012·Granted Aug 9, 2016·0 cites·4 claims
- 1454US8102616B2Magnetic recording medium, method of fabricating the same, and magnetic recording apparatusSAKURAI MASATOSHI·Filed 2010·Granted Jan 24, 2012·0 cites·2 claims
- 1553US2012273456A1Magnetic recording medium and method for manufacturing the sameSAKURAI MASATOSHI·Filed 2012·Application pending·0 cites
- 1650US2012082800A1Method for manufacturing magnetic recording mediumSAKURAI MASATOSHI·Filed 2011·Application pending·0 cites
- 1750US2012002316A1Magnetic recording apparatus and method of testing magnetic recording apparatusSAKURAI MASATOSHI·Filed 2011·Application pending·0 cites
- 1850US2015072135A1Hard coating film for cutting tool and cutting tool coated with hard coating filmSAKURAI MASATOSHI·Filed 2012·Application pending·0 cites
- 1946US2013309470A1Hard laminar coatingSAKURAI MASATOSHI·Filed 2011·Application pending·0 cites
- 2045US9109280B2Hard laminar coatingSAKURAI MASATOSHI·Filed 2011·Granted Aug 18, 2015·0 cites·1 claims
- 2141US2012237795A1Magnetic recording medium and method for manufacturing the sameSAKURAI MASATOSHI·Filed 2011·Application pending·0 cites
- 2241US2012063028A1Magnetic recording apparatusSAKURAI MASATOSHI·Filed 2011·Application pending·0 cites
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