Inventor

KITAZAKI NOBUYUKI

JP16 patents

⚠️ This page may combine multiple inventors who share the name “KITAZAKI NOBUYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IBM

10 patents

US6236527B1May 22, 2001

Disk drive with actuator load/unload controller

IBM109 citations95

US6532129B1Mar 11, 2003

Method and apparatus for sustaining feedback filter state having periodic output

IBM22 citations92

US6515813B2Feb 4, 2003

Method for controlling servo information detection timing and rotational speed of disk, and disk drive

IBM28 citations92

US5923491AJul 13, 1999

Disk drive servo control system with selectable filtering for reduction of repeatable runout

IBM40 citations92

US5687042ANov 11, 1997

Slider having shifted crown peak for reduced fly height sensitivity

IBM23 citations87

US6141173AOct 31, 2000

Head mechanism control apparatus, disk drive unit, and method of controlling head unload

IBM17 citations80

US5771570AJun 30, 1998

Method of manufacturing a slider/suspension having an improved crown sensitivity

IBM16 citations77

US6104578AAug 15, 2000

Magnetic disk and magnetic disk apparatus having an annular start-stop area with a radial downslope

IBM12 citations73

US6344943B1Feb 5, 2002

Increased and randomized output sampling to reduce positioning noise in a data storage system

IBM0 citations52

US6181507B1Jan 30, 2001

Increased and randomized output sampling to reduce positioning noise in a data storage system

IBM0 citations52

HITACHI GLOBAL STORAGE TECH

6 patents

US7133237B2Nov 7, 2006

Servo information write method, data storage device, and programs

HITACHI GLOBAL STORAGE TECH15 citations83

US7170705B2Jan 30, 2007

Recording device and controller and control method for a recording device

HITACHI GLOBAL STORAGE TECH8 citations74

US7054090B2May 30, 2006

Data storage device, recording medium, servo writing method, and data reading/writing method

HITACHI GLOBAL STORAGE TECH7 citations72

US6891692B2May 10, 2005

KITAZAKI NOBUYUKI

IBM

Disk drive with actuator load/unload controller

Method and apparatus for sustaining feedback filter state having periodic output

Method for controlling servo information detection timing and rotational speed of disk, and disk drive

Disk drive servo control system with selectable filtering for reduction of repeatable runout

Slider having shifted crown peak for reduced fly height sensitivity

Head mechanism control apparatus, disk drive unit, and method of controlling head unload

Method of manufacturing a slider/suspension having an improved crown sensitivity

Magnetic disk and magnetic disk apparatus having an annular start-stop area with a radial downslope

Increased and randomized output sampling to reduce positioning noise in a data storage system

Increased and randomized output sampling to reduce positioning noise in a data storage system

HITACHI GLOBAL STORAGE TECH

Servo information write method, data storage device, and programs

Recording device and controller and control method for a recording device

Data storage device, recording medium, servo writing method, and data reading/writing method

Disk drive apparatus, head position control method, and hard disk drive

Positioning control mechanism for a magnetic head in a magnetic storage device

Disk drive device and method for production thereof