Inventor · disambiguated record
Shigenori Yanagi
Also filed as: YANAGI SHIGENORI
117 granted patents·7 pending applications·1,933 citations·filing 1988–2009
99Inventor score
Top patents by PatentIndex Score
124 records- 0198US5392273AOptical storage drive controller with predetermined light source drive values stored in non-volatile memoryFUJITSU LTD·Filed 1993·Granted Feb 21, 1995·145 cites·30 claims
- 0296US7835104B2Storage device, control method, control device, and programTOSHIBA STORAGE DEVICE CORP·Filed 2006·Granted Nov 16, 2010·43 cites·21 claims
- 0396US7426090B2Storage device, control device, control method, and programFUJITSU LTD·Filed 2006·Granted Sep 16, 2008·37 cites·18 claims
- 0493US7468854B2Storage apparatus, control method, control device, and program which can control flying height of head accurateFUJITSU LTD·Filed 2006·Granted Dec 23, 2008·32 cites·17 claims
- 0593US7321477B2Disk control apparatus, disk control method, and computer productFUJITSU LTD·Filed 2006·Granted Jan 22, 2008·14 cites·14 claims
- 0693US5077719AOptical disk access systemFUJITSU LTD·Filed 1988·Granted Dec 31, 1991·60 cites·13 claims
- 0792US6687194B1Optical storing apparatus and reproducing method for correcting read errorsFUJITSU LTD·Filed 1999·Granted Feb 3, 2004·74 cites·20 claims
- 0891US5933397AOptical storage apparatus having track seek control unit providing improved seek performanceFUJITSU LTD·Filed 1996·Granted Aug 3, 1999·51 cites·24 claims
- 0990US7477466B2Control device and storage deviceFUJITSU LTD·Filed 2006·Granted Jan 13, 2009·10 cites·19 claims
- 1090US7430089B2Data storage device and write processing method for data storage deviceFUJITSU LTD·Filed 2005·Granted Sep 30, 2008·10 cites·20 claims
- 1190US6515949B2Storage apparatusFUJITSU LTD·Filed 2000·Granted Feb 4, 2003·29 cites·20 claims
- 1289US7663833B2Controller, storage apparatus and control methodTOSHIBA STORAGE DEVICE CORP·Filed 2008·Granted Feb 16, 2010·9 cites·6 claims
- 1389US6115338AOptical storage apparatusFUJITSU LTD·Filed 1998·Granted Sep 5, 2000·53 cites·42 claims
- 1489US5732055AOptical storage apparatusFUJITSU LTD·Filed 1996·Granted Mar 24, 1998·52 cites·42 claims
- 1588US7623314B2Head control device, storage device, and contact detection methodFUJITSU LTD·Filed 2007·Granted Nov 24, 2009·9 cites·10 claims
- 1688US7397626B2Storage device, continuous-vibration detecting method, and control apparatusFUJITSU LTD·Filed 2006·Granted Jul 8, 2008·8 cites·20 claims
- 1787US6633512B1Magneto-optical information storage apparatus and information storage method with function of updating default value of applied magnetic fieldFUJITSU LTD·Filed 2001·Granted Oct 14, 2003·22 cites·17 claims
- 1887US6067284ARecording power adjustment for optical storage apparatusFUJITSU LTD·Filed 1997·Granted May 23, 2000·48 cites·50 claims
- 1986US7379260B2Control apparatus, storage device, and head retracting methodFUJITSU LTD·Filed 2006·Granted May 27, 2008·6 cites·20 claims
- 2086US6697310B1Storage apparatus and calibrating methodFUJITSU LTD·Filed 2000·Granted Feb 24, 2004·24 cites·14 claims
- 2186US6356515B1High power controlling system for magneto-optical storage systemFUJITSU LTD·Filed 1999·Granted Mar 12, 2002·52 cites·22 claims
- 2286US5189653AOptical disk device eliminating offset of actuator and offset eliminating method used therebyFUJITSU LTD·Filed 1990·Granted Feb 23, 1993·39 cites·7 claims
- 2385US7477468B2Control apparatus, storage device, and head retracting methodFUJITSU LTD·Filed 2006·Granted Jan 13, 2009·6 cites·17 claims
- 2485US7420761B2Control apparatus, storage device, and head retraction controlling methodFUJITSU LTD·Filed 2006·Granted Sep 2, 2008·6 cites·12 claims
- 2585US6157599AOptical storage apparatusFUJITSU LTD·Filed 1998·Granted Dec 5, 2000·45 cites·23 claims
- 2685US5351222ADisk storage apparatus including a single power supply hysteresis comparator having a symmetrical characteristicFUJITSU LTD·Filed 1992·Granted Sep 27, 1994·36 cites·11 claims
- 2785US5195067ATrack access control system for a disk storage systemFUJITSU LTD·Filed 1990·Granted Mar 16, 1993·38 cites·14 claims
- 2885US5121370AApparatus and method for accurately scanning a light beam across tracks of a recording mediumFUJITSU LTD·Filed 1988·Granted Jun 9, 1992·27 cites·33 claims
- 2984US7697234B2Storage apparatus, control method, and control device which enable or disable compensation controlTOSHIBA STORAGE DEVICE CORP·Filed 2008·Granted Apr 13, 2010·7 cites·17 claims
- 3084US7525750B2Head retracting apparatus, storage device, and head retracting methodFUJITSU LTD·Filed 2006·Granted Apr 28, 2009·5 cites·6 claims
- 3184US5175722APower supply circuit for stabilizing power input to a laser diodeFUJITSU LTD·Filed 1990·Granted Dec 29, 1992·36 cites·31 claims
- 3283US6999260B2Shock detection device, disk drive, shock detection method, and shock detection programFUJITSU LTD·Filed 2004·Granted Feb 14, 2006·16 cites·8 claims
- 3383US4985882ATrack access control system for disk system, having eccentricity correction meansFUJITSU LTD·Filed 1989·Granted Jan 15, 1991·28 cites·27 claims
- 3481US7593176B2Control apparatus and storage deviceFUJITSU LTD·Filed 2006·Granted Sep 22, 2009·4 cites·14 claims
- 3581US5289447ATrack cross signal generation circuit of optical disk device for correctly outputting track cross signal and correctly and stably carrying out seek operation even within high-speed region of beamFUJITSU LTD·Filed 1992·Granted Feb 22, 1994·35 cites·17 claims
- 3680US7564637B2Storage media having areas for storing data for correcting servo information errorsFUJITSU LTD·Filed 2006·Granted Jul 21, 2009·4 cites·6 claims
- 3780US6275462B1Optical storage apparatusFUJITSU LTD·Filed 1998·Granted Aug 14, 2001·29 cites·30 claims
- 3880US5777964AOptical disk apparatusFUJITSU LTD·Filed 1996·Granted Jul 7, 1998·28 cites·11 claims
- 3979US7529056B2Control apparatus, storage device, and head retracting methodFUJITSU LTD·Filed 2006·Granted May 5, 2009·3 cites·12 claims
- 4079US5241522AOptical disk apparatus using transition control between positioner seek control and lens seek controlFUJITSU LTD·Filed 1991·Granted Aug 31, 1993·28 cites·20 claims
- 4178US6920092B2Seek control method and storage apparatusFUJITSU LTD·Filed 2001·Granted Jul 19, 2005·14 cites·17 claims
- 4278US6831884B2Clock adjusting device for use with data reproducing apparatus, offset detecting device, and data reproducing apparatusFUJITSU LTD·Filed 2001·Granted Dec 14, 2004·12 cites·13 claims
- 4378US6526014B2Optical storage apparatusFUJITSU LTD·Filed 2001·Granted Feb 25, 2003·10 cites·20 claims
- 4478US5182736ADeceleration control system for positioning an optical head in an optical disk unitFUJITSU LTD·Filed 1990·Granted Jan 26, 1993·27 cites·20 claims
- 4577US5917785ADisk apparatusFUJITSU LTD·Filed 1998·Granted Jun 29, 1999·25 cites·15 claims
- 4677US5901121AOptical storage apparatus having improved eccentricity correction abilitiesFUJITSU LTD·Filed 1998·Granted May 4, 1999·22 cites·8 claims
- 4777US5892742AOptical storage apparatusFUJITSU LTD·Filed 1998·Granted Apr 6, 1999·21 cites·4 claims
- 4877US5675562ASeek control method in optical storage deviceFUJITSU LTD·Filed 1996·Granted Oct 7, 1997·21 cites·9 claims
- 4977US5457671AMethod and circuit for correcting track zero crossing signal in optical trackFUJITSU LTD·Filed 1994·Granted Oct 10, 1995·25 cites·15 claims
- 5075US7660066B2Storage device, head returning method, and head returning apparatusTOSHIBA STORAGE DEVICE CORP·Filed 2006·Granted Feb 9, 2010·2 cites·19 claims
Showing the top 50 of 124 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →