Inventor · disambiguated record
Yuichi Kokaku
Also filed as: KOKAKU YUICHI
8 granted patents·2 pending applications·315 citations·filing 1987–2005
90Inventor score
Top patents by PatentIndex Score
10 records- 0193US5651867APlasma processing method and apparatusHITACHI LTD·Filed 1990·Granted Jul 29, 1997·91 cites·23 claims
- 0288US5409738ARecording mediumHITACHI LTD·Filed 1994·Granted Apr 25, 1995·45 cites·11 claims
- 0387US5275850AProcess for producing a magnetic disk having a metal containing hard carbon coating by plasma chemical vapor deposition under a negative self biasHITACHI LTD·Filed 1991·Granted Jan 4, 1994·67 cites·2 claims
- 0483US5300189APlasma surface treatment method and apparatusHITACHI LTD·Filed 1987·Granted Apr 5, 1994·50 cites·33 claims
- 0577US5958542AThin film magnetic disc and method of manufacturing the discHITACHI LTD·Filed 1996·Granted Sep 28, 1999·36 cites·16 claims
- 0663US5104709AMagnetic recording medium which includes a protective layer, an adhesion strengthening substance and a lubricant layerHITACHI LTD·Filed 1990·Granted Apr 14, 1992·15 cites·21 claims
- 0746US2006121317A1Magnetic recording medium, method of manufacturing the magnetic recording medium and a magnetic disk drive using the magnetic recording mediumHITACHI GLOBAL STORAGE TECH·Filed 2005·Application pending·0 cites
- 0845US4908250AOptical recording medium and production method thereofHITACHI MAXELL·Filed 1988·Granted Mar 13, 1990·8 cites·8 claims
- 0942US2006044688A1Magnetic disk with protection film and magnetic disk manufacturing methodHITACHI GLOBAL STORAGE TECH·Filed 2005·Application pending·0 cites
- 1031US5073243AMethod for producing an optical recording mediumHITACHI MAXELL·Filed 1989·Granted Dec 17, 1991·3 cites·15 claims
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