Inventor · disambiguated record
Craig Fukushima
Also filed as: FUKUSHIMA CRAIG · FUKUSHIMA CRAIG N
15 granted patents·197 citations·filing 1997–2007
93Inventor score
Technology areasG11B
Top patents by PatentIndex Score
15 records- 0189US6798606B2Position error signal linearization calibrationIBM·Filed 2002·Granted Sep 28, 2004·25 cites·21 claims
- 0285US7236321B1Method for preventing data loss in a hard disk drive by projecting reduction in helium concentration using insitu non-repeatable runoutHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Jun 26, 2007·7 cites·22 claims
- 0384US6429995B1Position error signal calibration using measured burstsIBM·Filed 1999·Granted Aug 6, 2002·47 cites·51 claims
- 0483US7212370B1Method for reducing time loss during manufacture of hard disk drives by predicting reduction in helium concentration using insitu non-repeatable runoutHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted May 1, 2007·5 cites·21 claims
- 0582US7586709B2Read write offset error correction using geometric reference in self servo write processHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Sep 8, 2009·6 cites·2 claims
- 0681US6940677B2Writing distinct servo patterns on individual transducers according to transducer read/write head characteristics in a data storage deviceIBM·Filed 2002·Granted Sep 6, 2005·16 cites·29 claims
- 0779US6975478B2Method for calibrating disk drive servo control system gain values during manufacturingHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Dec 13, 2005·13 cites·13 claims
- 0878US6522493B1Position error signal linearization using an auxiliary discontinuity removal routineIBM·Filed 1999·Granted Feb 18, 2003·34 cites·30 claims
- 0975US7199963B2Method of performing self-servo write using a helium environmentHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Apr 3, 2007·10 cites·18 claims
- 1069US7408737B2Apparatus of performing self-servo write using a helium environmentHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Aug 5, 2008·7 cites·15 claims
- 1169US6917487B2Seamless and untrimmed primary servo burst with secondary servo burstsHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Jul 12, 2005·6 cites·23 claims
- 1264US6836453B2Re-read of data read prior to read inhibit for data recovery and validation in a sampled position data storage deviceIBM·Filed 2002·Granted Dec 28, 2004·5 cites·21 claims
- 1355US6049442AMultiply-written servo burst patterns for minimizing position error in servo disk drivesIBM·Filed 1997·Granted Apr 11, 2000·11 cites·43 claims
- 1447US8559125B2Seamless and untrimmed primary servo burst with multiple secondary servo burstsFUKUSHIMA CRAIG N·Filed 2005·Granted Oct 15, 2013·0 cites·14 claims
- 1541US6359749B1Dual element head with radial offset optimized for minimal write-to-read track errorIBM·Filed 1999·Granted Mar 19, 2002·5 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →