Inventor · disambiguated record
Futoshi Tomiyama
Also filed as: TOMIYAMA FUTOSHI
20 granted patents·4 pending applications·338 citations·filing 1994–2006
96Inventor score
Top patents by PatentIndex Score
24 records- 0196US7443625B2Magnetic disk driveHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Oct 28, 2008·29 cites·10 claims
- 0291US6657805B2Method of controlling read write operation of a magnetic disk apparatusHITACHI LTD·Filed 2001·Granted Dec 2, 2003·27 cites·7 claims
- 0390US6909566B1Magnetic recording/reproducing deviceHITACHI GLOBAL STORAGE TECH·Filed 2000·Granted Jun 21, 2005·30 cites·3 claims
- 0489US7221530B2Magnetic head with high reliability of the data protection, magnetic disk apparatus including the magnetic head and the method of recording information on the magnetic disk apparatus without miserasing the previously recorded dataHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted May 22, 2007·8 cites·3 claims
- 0585US6635367B2Magnetic recording mediumHITACHI LTD·Filed 2001·Granted Oct 21, 2003·58 cites·17 claims
- 0684US6760172B1Magnetic disk driveHITACHI LTD·Filed 2000·Granted Jul 6, 2004·18 cites·14 claims
- 0780US6404576B1Method and system for compensation of nonlinearity or fluctuation of head-position signalHITACHI LTD·Filed 2000·Granted Jun 11, 2002·11 cites·4 claims
- 0878US5719719AMagnetic disk drive with sensing current adjustment of MR headHITACHI LTD·Filed 1994·Granted Feb 17, 1998·26 cites·16 claims
- 0976US6940690B2Magnetic head with high reliability of the data protection, magnetic disk apparatus including the magnetic head and the method of recording information on the magnetic disk apparatus without miserasing the previously recorded dataHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Sep 6, 2005·9 cites·14 claims
- 1075US6473254B1Method and system for compensation of nonlinearity or fluctuation of head-position signalHITACHI LTD·Filed 2000·Granted Oct 29, 2002·8 cites·13 claims
- 1172US5723198AMulti-layered magnetic recording medium and magnetic recording system employing the sameHITACHI LTD·Filed 1994·Granted Mar 3, 1998·29 cites·94 claims
- 1271US6717760B2Magnetic disk driveHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Apr 6, 2004·6 cites·10 claims
- 1371US6327112B1Adjacent track position detectable information storage apparatusHITACHI LTD·Filed 1999·Granted Dec 4, 2001·22 cites·12 claims
- 1471US6310741B1Magnetic disk apparatus with data track reassigning functionHITACHI LTD·Filed 1999·Granted Oct 30, 2001·19 cites·13 claims
- 1567US7031091B2Magnetic recording apparatus and method of writing data at low temperatureHITACHI LTD·Filed 2003·Granted Apr 18, 2006·6 cites·15 claims
- 1667US6906889B2Magnetic disk driveHITACHI LTD·Filed 2002·Granted Jun 14, 2005·5 cites·3 claims
- 1765US6515817B1Magnetic disk driveHITACHI LTD·Filed 1999·Granted Feb 4, 2003·15 cites·9 claims
- 1864US6879460B2Magnetic recording disk driveHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Apr 12, 2005·4 cites·4 claims
- 1952US7057838B2Magnetic disk device having a write head to write by shifting in a radial directionHITACHI LTD·Filed 2003·Granted Jun 6, 2006·1 cites·17 claims
- 2049US6657804B1Magnetic recording disk driveHITACHI LTD·Filed 1999·Granted Dec 2, 2003·7 cites·6 claims
- 2144US2004080856A1Magnetic head with high reliability of the data protection, magnetic disk apparatus including the magnetic head and the method of recording information on the magnetic disk apparatus without miserasing the previously recorded dataHITACHI LTD·Filed 2003·Application pending·0 cites
- 2242US2002003675A1Signal processing circuit free from erroneuos data and the information storage apparatus including the signal processing circuitHITACHI LTD·Filed 2001·Application pending·0 cites
- 2342US2001033444A1Signal processing circuit free from erroneous data and the information storage apparatus including the signal processing circuitHITACHI LTD·Filed 2001·Application pending·0 cites
- 2439US2003142435A1Magnetic disk apparatus, magnetic recording medium and method of servo waitingFiled 2002·Application pending·0 cites
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