Inventor · disambiguated record
Yuji Hata
Also filed as: HATA YUJI
8 granted patents·134 citations·filing 1990–2009
87Inventor score
Technology areasG11B
Top patents by PatentIndex Score
8 records- 0189US5402400AMethod and apparatus for eliminating external disturbances in a disk drive deviceHITACHI LTD·Filed 1993·Granted Mar 28, 1995·63 cites·23 claims
- 0274US8369040B2Storage control device and rotation speed control method for storage deviceHITACHI LTD·Filed 2009·Granted Feb 5, 2013·3 cites·13 claims
- 0373US6153997ADisk apparatus and method of controlling disk apparatusHITACHI LTD·Filed 1999·Granted Nov 28, 2000·28 cites·8 claims
- 0467US6744591B2Positioning control methodHITACHI LTD·Filed 2000·Granted Jun 1, 2004·8 cites·4 claims
- 0564US6909575B2Magnetic disk drive and control method thereofHITACHI LTD·Filed 2002·Granted Jun 21, 2005·6 cites·17 claims
- 0663US6940684B2Disk device and seek control methodHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Sep 6, 2005·5 cites·12 claims
- 0755US5606470AMethod and apparatus for controlling magnetoresistive effect element headHITACHI LTD·Filed 1995·Granted Feb 25, 1997·14 cites·8 claims
- 0846US5241435AServo information recording method for a storage apparatusHITACHI LTD·Filed 1990·Granted Aug 31, 1993·7 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →