Inventor
YATSU MASAHIDE
JP26 patents
⚠️ This page may combine multiple inventors who share the name “YATSU MASAHIDE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
24 patentsUS6002544ADec 14, 1999
Head positioning control system for use in a disk drive using different target velocity data for read and write seeks
TOSHIBA KK234 citations99
US6943977B2Sep 13, 2005
Method and apparatus for servo writing in a disk drive
TOSHIBA KK24 citations92
US6738215B2May 18, 2004
Method and system for accurate self-servo writing by using relative position between head and writing surface
TOSHIBA KK34 citations92
US6417983B1Jul 9, 2002
System for head positioning control in a disk drive
TOSHIBA KK30 citations92
US7312946B2Dec 25, 2007
Method and apparatus for servo control in a disk drive
TOSHIBA KK13 citations84
US5754358AMay 19, 1998
Head positioning system and method for use in disk recording/reproducing apparatus
TOSHIBA KK17 citations84
US7675705B2Mar 9, 2010
Method and apparatus for writing servo pattern using spiral pattern in disk drive
TOSHIBA KK14 citations83
US7489468B2Feb 10, 2009
Method and apparatus for head positioning control in a disk drive
TOSHIBA KK8 citations83
US7477472B2Jan 13, 2009
Method and apparatus for writing servo data in a disk drive using spiral servo patterns
TOSHIBA KK13 citations83
US6771455B1Aug 3, 2004
Control system and control method for positioning a head above a desired position on disk
TOSHIBA KK10 citations74
US5680271AOct 21, 1997
Control device of the disk apparatus for positioning a head on a disk
TOSHIBA KK12 citations74
US6175465B1Jan 16, 2001
Head positioning control system for use in a disk storage drive
TOSHIBA KK12 citations73
US5801897ASep 1, 1998
Head positioning control system for use in a disk storage system
TOSHIBA KK11 citations73
US7239472B2Jul 3, 2007
Method and apparatus for writing data in a disk drive
TOSHIBA KK6 citations63
US7106545B2Sep 12, 2006
Method and apparatus for servowriting in a disk drive
TOSHIBA KK2 citations63
US7221533B2May 22, 2007
Method and apparatus for servo information writing in a disk drive
TOSHIBA KK4 citations62
US7855850B2Dec 21, 2010
Method and apparatus for head positioning using spiral servo patterns in a disk drive
TOSHIBA KK4 citations61
US7804659B2Sep 28, 2010
Method and apparatus for positioning head using spiral servo pattern in a disk drive
TOSHIBA KK2 citations61
US7710682B2May 4, 2010
Method and apparatus for writing spiral servo pattern in a disk drive
TOSHIBA KK4 citations61
US7630161B2Dec 8, 2009
Method and apparatus for writing spiral servo pattern in a disk drive
TOSHIBA KK4 citations61
US7457074B2Nov 25, 2008
Method and apparatus for correcting errors while writing spiral servo information in a disk drive
TOSHIBA KK4 citations59
US7423835B2Sep 9, 2008
Method and apparatus for servo control using spiral servo information in a disk drive
TOSHIBA KK5 citations59
US7173789B2Feb 6, 2007
Head position calculation method in magnetic disc apparatus
TOSHIBA KK0 citations41
US7538965B2May 26, 2009
Method and apparatus for writing servo management information in a disk drive
TOSHIBA KK0 citations38