Inventor
KOSUGI TATSUHIKO
JP26 patents
⚠️ This page may combine multiple inventors who share the name “KOSUGI TATSUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
19 patentsUS5592353AJan 7, 1997
Power supply system
FUJITSU LTD135 citations97
US6498695B2Dec 24, 2002
Method of detecting position on disk, disk unit and disk
FUJITSU LTD17 citations92
US5757576AMay 26, 1998
Disk apparatus, and phase demodulating device and method for a disk apparatus
FUJITSU LTD23 citations92
US5606469AFeb 25, 1997
Method for correcting offset in a magnetic disk including apparent offtrack cancellation
FUJITSU LTD48 citations92
US5694265ADec 2, 1997
Disk apparatus for detecting position of head by reading phase servo pattern
FUJITSU LTD35 citations91
US7508610B2Mar 24, 2009
Method and apparatus for recording servo frame, storage disk, and method and apparatus for obtaining servo frame information
FUJITSU LTD8 citations82
US6535348B1Mar 18, 2003
Servo control method and information storage device
FUJITSU LTD13 citations82
US6239940B1May 29, 2001
Disk device and disk device calibrating method
FUJITSU LTD8 citations74
US7463438B2Dec 9, 2008
Information storage apparatus, and control method and program for the same
FUJITSU LTD8 citations73
US5523900AJun 4, 1996
Head position detecting method and apparatus
FUJITSU LTD15 citations73
US6466394B1Oct 15, 2002
Storage device and method of detecting a position of a head on a disk of the storage device
FUJITSU LTD3 citations63
US6262861B1Jul 17, 2001
Method of detecting position on disk, disk unit and disk
FUJITSU LTD4 citations62
US5675446AOct 7, 1997
Method of controlling magnetic disk unit based on version data
FUJITSU LTD3 citations62
US7164261B2Jan 16, 2007
Resonance-frequency measuring method determining a resonance frequency by counting the number of off-track occurrences
FUJITSU LTD4 citations61
US7050250B2May 23, 2006
Storage apparatus and storage medium
FUJITSU LTD4 citations61
US6556368B1Apr 29, 2003
Disk apparatus and control method therefor
FUJITSU LTD0 citations52
US5432659AJul 11, 1995
Magnetic disk unit having a plurality of magnetic heads
FUJITSU LTD1 citations52
US7110213B2Sep 19, 2006
Positioner for positioning head on a disk
FUJITSU LTD0 citations42
US7196865B2Mar 27, 2007
Recording apparatus having discoid record mediums
FUJITSU LTD0 citations41