P

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 patents
US5592353AJan 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

KOSUGI TATSUHIKO

2 patents

TOSHIBA KK

2 patents

TOSHIBA STORAGE DEVICE CORP

2 patents

OYABU HIROSHI

1 patent