Inventor · disambiguated record
Hideo Sado
Also filed as: SADO HIDEO
39 granted patents·6 pending applications·187 citations·filing 2003–2019
97Inventor score
Technology areasG11B
Top patents by PatentIndex Score
45 records- 0197US7262932B2Magnetic recording medium and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2006·Granted Aug 28, 2007·21 cites·9 claims
- 0295US7298576B2Magnetic recording medium and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2007·Granted Nov 20, 2007·13 cites·6 claims
- 0394US7639446B2Disk drive device and servo write methodTOSHIBA KK·Filed 2008·Granted Dec 29, 2009·24 cites·9 claims
- 0492US7639445B2Disk drive device and head positioning control methodTOSHIBA KK·Filed 2008·Granted Dec 29, 2009·16 cites·9 claims
- 0591US7675705B2Method and apparatus for writing servo pattern using spiral pattern in disk driveTOSHIBA KK·Filed 2007·Granted Mar 9, 2010·14 cites·18 claims
- 0691US7477472B2Method and apparatus for writing servo data in a disk drive using spiral servo patternsTOSHIBA KK·Filed 2007·Granted Jan 13, 2009·13 cites·11 claims
- 0791US7298579B2Magnetic recording medium and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2007·Granted Nov 20, 2007·6 cites·5 claims
- 0890US7298582B2Magnetic recording medium and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2007·Granted Nov 20, 2007·5 cites·9 claims
- 0984US7239472B2Method and apparatus for writing data in a disk driveTOSHIBA KK·Filed 2006·Granted Jul 3, 2007·6 cites·14 claims
- 1084US7006322B2Method and apparatus for performing self-servo writing in a disk driveTOSHIBA KK·Filed 2003·Granted Feb 28, 2006·18 cites·9 claims
- 1183US7298580B2Magnetic recording medium and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2007·Granted Nov 20, 2007·2 cites·4 claims
- 1282US7525755B2Magnetic recording medium and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2007·Granted Apr 28, 2009·2 cites·7 claims
- 1380US7855850B2Method and apparatus for head positioning using spiral servo patterns in a disk driveTOSHIBA KK·Filed 2008·Granted Dec 21, 2010·4 cites·11 claims
- 1480US7710682B2Method and apparatus for writing spiral servo pattern in a disk driveTOSHIBA KK·Filed 2007·Granted May 4, 2010·4 cites·6 claims
- 1580US7423835B2Method and apparatus for servo control using spiral servo information in a disk driveTOSHIBA KK·Filed 2006·Granted Sep 9, 2008·5 cites·10 claims
- 1680US7221533B2Method and apparatus for servo information writing in a disk driveTOSHIBA KK·Filed 2005·Granted May 22, 2007·4 cites·10 claims
- 1779US7630161B2Method and apparatus for writing spiral servo pattern in a disk driveTOSHIBA KK·Filed 2007·Granted Dec 8, 2009·4 cites·10 claims
- 1878US7457074B2Method and apparatus for correcting errors while writing spiral servo information in a disk driveTOSHIBA KK·Filed 2007·Granted Nov 25, 2008·4 cites·18 claims
- 1974US7852593B2Method and apparatus for writing servo data, using spiral servo patterns in a disk driveTOSHIBA KK·Filed 2008·Granted Dec 14, 2010·2 cites·9 claims
- 2072US7804659B2Method and apparatus for positioning head using spiral servo pattern in a disk driveTOSHIBA KK·Filed 2007·Granted Sep 28, 2010·2 cites·4 claims
- 2172US7102840B2Disc apparatus and servo pattern write method thereofTOSHIBA KK·Filed 2004·Granted Sep 5, 2006·8 cites·6 claims
- 2269US7961578B2Method and apparatus for generating synchronous clock for write operation in a disk driveTOSHIBA KK·Filed 2008·Granted Jun 14, 2011·1 cites·11 claims
- 2366US8542458B2Magnetic disk drive and method for controlling microactuator in magnetic disk driveMATSUNAGA TOSHITAKA·Filed 2011·Granted Sep 24, 2013·3 cites·10 claims
- 2465US7548394B2Magnetic recording medium and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2007·Granted Jun 16, 2009·0 cites·4 claims
- 2565US7538968B2Magnetic recording medium and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2007·Granted May 26, 2009·0 cites·4 claims
- 2665US7532430B2Magnetic recording medium and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2007·Granted May 12, 2009·0 cites·3 claims
- 2765US7298578B2Magnetic recording medium and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2007·Granted Nov 20, 2007·0 cites·6 claims
- 2865US7298581B2Magnetic recording medium and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2007·Granted Nov 20, 2007·0 cites·3 claims
- 2965US7298577B2Magnetic recording medium and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2007·Granted Nov 20, 2007·0 cites·8 claims
- 3063US8400727B2Recording device and method for positioning electromagnetic transducerYOSHIDA YUTAKA·Filed 2011·Granted Mar 19, 2013·1 cites·8 claims
- 3161US9905257B2Hard disk drive, manufacturing method of the same, and servo data writing methodTOSHIBA KK·Filed 2016·Granted Feb 27, 2018·1 cites·10 claims
- 3260US7933088B2Disk drive having a disk of discrete-track media typeTOSHIBA KK·Filed 2008·Granted Apr 26, 2011·0 cites·20 claims
- 3359US7268962B2Method and apparatus for determining track pitch for writing servo information in a disk driveTOSHIBA KK·Filed 2004·Granted Sep 11, 2007·3 cites·5 claims
- 3458US7920353B2Disk drive configured to calculate head rebound distanceTOSHIBA KK·Filed 2010·Granted Apr 5, 2011·1 cites·20 claims
- 3551US7538965B2Method and apparatus for writing servo management information in a disk driveTOSHIBA KK·Filed 2007·Granted May 26, 2009·0 cites·4 claims
- 3651US2009002872A1Method and apparatus for positioning head on data track with a variable track width in a disk driveTOSHIBA KK·Filed 2008·Application pending·0 cites
- 3750US2008137226A1Method and apparatus for testing servo data on a disk medium in a disk driveTOSHIBA KK·Filed 2007·Application pending·0 cites
- 3849US10115422B2Hard disk drive, manufacturing method of the same, and servo data writing methodTOSHIBA KK·Filed 2018·Granted Oct 30, 2018·0 cites·20 claims
- 3949US2008002279A1Method and apparatus for writing a spiral servo pattern on a disk in a disk driveTOSHIBA KK·Filed 2007·Application pending·0 cites
- 4049US2008068740A1Method and apparatus for writing servo data and positioning head in a disk driveTOSHIBA KK·Filed 2007·Application pending·0 cites
- 4148US7173789B2Head position calculation method in magnetic disc apparatusTOSHIBA KK·Filed 2005·Granted Feb 6, 2007·0 cites·2 claims
- 4247US2007047132A1Method and apparatus for writing servo informationTOSHIBA KK·Filed 2006·Application pending·0 cites
- 4345US2006109583A1Method and apparatus for servo writing with servo pattern examination in a disk driveTOSHIBA KK·Filed 2005·Application pending·0 cites
- 4444US10636446B2Magnetic disk device and head positioning methodTOSHIBA KK·Filed 2019·Granted Apr 28, 2020·0 cites·18 claims
- 4541US8363347B2Storage device and information correction methodTOSHIBA KK·Filed 2011·Granted Jan 29, 2013·0 cites·12 claims
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