Assignee
NAGATA NARUHISA
JP·7 granted patents·4 citations·filing 2009–2012
Top patents by PatentIndex Score
7 records- 0171US8334028B2Method of forming a protective filmNAGATA NARUHISA·Filed 2009·Granted Dec 18, 2012·2 cites·2 claims
- 0267US8500967B2Vacuum arc evaporation apparatus and method, and magnetic recording medium formed therebyNAGATA NARUHISA·Filed 2011·Granted Aug 6, 2013·2 cites·15 claims
- 0359US8182883B2Method of forming a protective film for a magnetic recording medium, a protective film formed by the method and a magnetic recording medium having the protective filmNAGATA NARUHISA·Filed 2009·Granted May 22, 2012·0 cites·20 claims
- 0449US8888966B2Protective film mainly composed of a tetrahedral amorphous carbon film and a magnetic recording medium having the protective filmNAGATA NARUHISA·Filed 2011·Granted Nov 18, 2014·0 cites·5 claims
- 0548US8865269B2Method of forming a protective film for a magnetic recording medium, a protective film formed by the method and a magnetic recording medium having the protective filmNAGATA NARUHISA·Filed 2012·Granted Oct 21, 2014·0 cites·28 claims
- 0648US8389071B2Apparatus and method for forming carbon protective layerNAGATA NARUHISA·Filed 2011·Granted Mar 5, 2013·0 cites·5 claims
- 0746US8980448B2Magnetic recording medium including an amorphous carbon protective filmNAGATA NARUHISA·Filed 2011·Granted Mar 17, 2015·0 cites·7 claims
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