Inventor · disambiguated record
Koji Osafune
Also filed as: OSAFUNE KOJI
18 granted patents·5 pending applications·387 citations·filing 1985–2006
95Inventor score
Files withTOSHIBA KK22
Top patents by PatentIndex Score
23 records- 0193US6396652B1Apparatus and method for control head unloading on power down in a disk driveTOSHIBA KK·Filed 1999·Granted May 28, 2002·100 cites·2 claims
- 0292US4931889AMethod and apparatus depending on the selected power source for controlling the positioning of a recording/reproducing apparatusTOSHIBA KK·Filed 1988·Granted Jun 5, 1990·52 cites·7 claims
- 0389US6594102B1Apparatus and method for retracting the head on power down in a disk driveTOSHIBA KK·Filed 1999·Granted Jul 15, 2003·62 cites·8 claims
- 0488US4803571AFloppy disc magnetic head apparatus compatible with both horizontal and perpendicular recording mediaTOSHIBA KK·Filed 1987·Granted Feb 7, 1989·39 cites·6 claims
- 0587US7489468B2Method and apparatus for head positioning control in a disk driveTOSHIBA KK·Filed 2006·Granted Feb 10, 2009·8 cites·11 claims
- 0686US7057844B2Method and apparatus for head positioning control in a disk driveTOSHIBA KK·Filed 2005·Granted Jun 6, 2006·7 cites·9 claims
- 0784US7035036B2Method and apparatus for writing servo data with perpendicular magnetic recording in a disk driveTOSHIBA KK·Filed 2004·Granted Apr 25, 2006·15 cites·6 claims
- 0882US6762895B2Magnetic disk drive and position error signal generation methodTOSHIBA KK·Filed 2001·Granted Jul 13, 2004·16 cites·14 claims
- 0982US5636088AHead assembly controlling distortion due to temperature variation and disk apparatus using the head assemblyTOSHIBA KK·Filed 1994·Granted Jun 3, 1997·34 cites·2 claims
- 1069US7009792B2Method and apparatus for data reproducing in a disk driveTOSHIBA KK·Filed 2003·Granted Mar 7, 2006·7 cites·12 claims
- 1169US6950259B2Disk drive with control of read and write gate signals for read and write operationTOSHIBA KK·Filed 2002·Granted Sep 27, 2005·7 cites·13 claims
- 1259US7019936B2Method and apparatus for head positioning control in perpendicular magnetic recording of disk driveTOSHIBA KK·Filed 2004·Granted Mar 28, 2006·3 cites·9 claims
- 1359US4811126ARecording/reproducing system for a magnetic recording medium including synchronization detecting circuitTOSHIBA KK·Filed 1988·Granted Mar 7, 1989·11 cites·21 claims
- 1454US2006082921A1Method and apparatus for writing servo data with perpendicular magnetic recording in a disk driveTOSHIBA KK·Filed 2005·Application pending·0 cites
- 1548US4709279ARead/write amplifier power control device for a disk apparatusTOSHIBA KK·Filed 1985·Granted Nov 24, 1987·7 cites·6 claims
- 1645US6046876AHead signal device with noise immunity function, for use in a disk storage apparatusTOSHIBA KK·Filed 1998·Granted Apr 4, 2000·10 cites·15 claims
- 1744US2005264917A1Method and apparatus for servo writing in a disk driveTOSHIBA KK·Filed 2005·Application pending·0 cites
- 1843US2005105213A1Disk drive and magnetic head device for perpendicular magnetic recordingTOSHIBA KK·Filed 2004·Application pending·0 cites
- 1942US5038230AMethod of accurately executing read access and magnetic recording/reproducing apparatus thereforTOSHIBA KK·Filed 1989·Granted Aug 6, 1991·6 cites·19 claims
- 2040US2005052770A1Method and apparatus for recovering read errors in a disk driveTOSHIBA KK·Filed 2003·Application pending·0 cites
- 2138US2002089773A1Disk drive including preamplifier for perpendicular magnetic recording systemFiled 2001·Application pending·0 cites
- 2233US5233481AMagnetic recording and reproducing apparatusTOSHIBA KK·Filed 1990·Granted Aug 3, 1993·1 cites·7 claims
- 2333US4745275ASensor circuitTOSHIBA KK·Filed 1985·Granted May 17, 1988·2 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →