Inventor · disambiguated record
Isamu Tomita
Also filed as: TOMITA ISAMU
26 granted patents·3 pending applications·337 citations·filing 1994–2020
96Inventor score
Top patents by PatentIndex Score
29 records- 0194US7492543B2Control device, control method, and storage apparatus for controlling read head and write head clearanceFUJITSU LTD·Filed 2007·Granted Feb 17, 2009·25 cites·20 claims
- 0286US6175459B1Magnetic disk drive with a disk medium defect detector and read channel IC used in the driveFUJITSU LTD·Filed 1998·Granted Jan 16, 2001·47 cites·13 claims
- 0381US7719788B2Servo information correcting methodTOSHIBA STORAGE DEVICE CORP·Filed 2009·Granted May 18, 2010·4 cites·8 claims
- 0481US6295175B1Apparatus for recognizing spin valve head failure due to pin layer magnetic field offsetFUJITSU LTD·Filed 1998·Granted Sep 25, 2001·38 cites·17 claims
- 0581US6130793AThermal asperity detection method, thermal asperity compensation method, magnetic disk unit and retry method thereforFUJITSU LTD·Filed 1997·Granted Oct 10, 2000·37 cites·13 claims
- 0680US6690538B1Disk drive device and access sequence thereforFUJITSU LTD·Filed 2000·Granted Feb 10, 2004·15 cites·12 claims
- 0774US7002769B2Head control method and recording apparatusFUJITSU LTD·Filed 2004·Granted Feb 21, 2006·10 cites·6 claims
- 0871US5754354AMagnetic disk drive unit with complex magnetic head of variable reading widthFUJITSU LTD·Filed 1994·Granted May 19, 1998·20 cites·7 claims
- 0970US7136245B2Disk deviceFUJITSU LTD·Filed 2004·Granted Nov 14, 2006·8 cites·6 claims
- 1069US7561371B2Magnetic disk device, servo-information writing device, magnetic disk, and magnetic disk device manufacturing methodFUJITSU LTD·Filed 2006·Granted Jul 14, 2009·1 cites·10 claims
- 1169US7420765B2Seek control apparatus, seek control method and storage apparatusFUJITSU LTD·Filed 2007·Granted Sep 2, 2008·1 cites·17 claims
- 1268US6064541AServo pattern writing method for magnetic disk drives, and magnetic disk drive adopting the methodFUJITSU LTD·Filed 1997·Granted May 16, 2000·20 cites·22 claims
- 1368US5903411AMethod for reliably positioning a head in a disk drive to a guard band areaFUJITSU LTD·Filed 1996·Granted May 11, 1999·21 cites·6 claims
- 1465US10762920B2Magnetic disk deviceTOSHIBA KK·Filed 2019·Granted Sep 1, 2020·1 cites·10 claims
- 1559US7050250B2Storage apparatus and storage mediumFUJITSU LTD·Filed 2004·Granted May 23, 2006·4 cites·36 claims
- 1659US5625777AData storage system having plural external storage units capable of disconnection while keeping system power energizedFUJITSU LTD·Filed 1995·Granted Apr 29, 1997·32 cites·26 claims
- 1756US5926337AOff-track correcting method of disk apparatus and a disk apparatus using the sameFUJITSU LTD·Filed 1997·Granted Jul 20, 1999·13 cites·17 claims
- 1854US5721838AData storage system having a data storage apparatus connectable to a computer system through an interfaceFUJITSU LTD·Filed 1996·Granted Feb 24, 1998·25 cites·7 claims
- 1953US7289287B2Apparatus for recording or/and reproducing information and method for reducing power consumption thereofFUJITSU LTD·Filed 2002·Granted Oct 30, 2007·2 cites·13 claims
- 2053US2009296263A1Information storage apparatusFUJITSU LTD·Filed 2009·Application pending·0 cites
- 2151US2009245057A1Sensor detachment detection circuit, sensor detachment detection method, and information storage deviceFUJITSU LTD·Filed 2009·Application pending·0 cites
- 2249US11183210B2Magnetic disk deviceTOSHIBA KK·Filed 2020·Granted Nov 23, 2021·0 cites·10 claims
- 2349US7522364B2Control circuit for information storage deviceFUJITSU LTD·Filed 2006·Granted Apr 21, 2009·0 cites·3 claims
- 2444US6219722B1Head IC and recording apparatusFUJITSU LTD·Filed 1998·Granted Apr 17, 2001·6 cites·20 claims
- 2543US9959891B2Method for correcting a mounting position of a disk device on a rackTOSHIBA KK·Filed 2017·Granted May 1, 2018·0 cites·15 claims
- 2641US7196865B2Recording apparatus having discoid record mediumsFUJITSU LTD·Filed 2003·Granted Mar 27, 2007·0 cites·10 claims
- 2738US5805373AHead position error compensation in disk drivesFUJITSU LTD·Filed 1995·Granted Sep 8, 1998·4 cites·10 claims
- 2837US2010149674A1Method of manufacturing disk device, method of writing servo information to storage disk, and disk deviceTOSHIBA STORAGE DEVICE CORP·Filed 2010·Application pending·0 cites
- 2936US5907449APosition sunsitivity adjusting method for disk apparatus and a disk apparatus using the sameFUJITSU LTD·Filed 1997·Granted May 25, 1999·3 cites·15 claims
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