Jorge F Escobar

US Patent:

6934107, Aug 23, 2005

Filed:

Sep 30, 2003

Appl. No.:

10/675787

Inventors:

Jorge F. Escobar - San Jose CA, US
Andrei Khurshudov - San Jose CA, US

Assignee:

Hitachi Global Storage Technologies Netherlands B.V. - Amsterdam

International Classification:

G11B033/14

US Classification:

360 69, 360 75, 360 7804, 360 9702

Abstract:

A hard disk drive (HDD) capable of controlling its own internal temperature during testing. A test program embedded in the HDD is run only within a pre-determined optimal test temperature range. The internal temperature of the HDD is kept within this pre-determined test temperature range by switching HDD operation modes back and forth between a higher heat generating Rapid Seek Mode and a lower heat generating IDLE mode. The HDD is thus kept within the optimal test temperature range without the use of external heating and/or cooling devices.

US Patent:

7136247, Nov 14, 2006

Filed:

Sep 30, 2003

Appl. No.:

10/675306

Inventors:

Jorge F. Escobar - San Jose CA, US
Andrei Khurshudov - San Jose CA, US

Assignee:

Hitachi Global Storage Technologies Netherlands B.V. - Amsterdam

International Classification:

G11B 15/18
G11B 21/02
G11B 5/596
G11B 15/46

US Classification:

360 69, 360 7804, 360 75, 360 7303, 702130, 702127

Abstract:

A method and program product supporting adjusting a temperature of a hard disk drive (HDD) during testing. An HDD test program is performed within a pre-determined optimal test temperature range. The HDD is kept within this pre-determined test temperature range by switching HDD operation modes back and forth between a higher heat generating Rapid Seek Mode and a lower heat generating IDLE mode. The HDD is thus kept within the optimal test temperature range without the use of external heating and/or cooling devices.

US Patent:

7643240, Jan 5, 2010

Filed:

Aug 30, 2007

Appl. No.:

11/897636

Inventors:

Jorge F. Escobar - San Jose CA, US
Steven N. Guilliams - San Francisco CA, US
Kris Schouterden - San Jose CA, US

Assignee:

Hitachi Global Storage Technologies Netherlands B.V. - Amsterdam

International Classification:

G11B 21/02

US Classification:

360 75

Abstract:

A method for increasing reliability of a hard disk drive (HDD) is disclosed. One of a plurality of magnetic read/write heads in a hard disk drive (HDD) is determined to be disabled, and a fly-height associated with the disabled read/write head is increased with respect to a fly-height associated with the plurality of read/write heads.

US Patent:

20050071117, Mar 31, 2005

Filed:

Sep 30, 2003

Appl. No.:

10/675286

Inventors:

Jorge Escobar - San Jose CA, US
Andrei Khurshudov - San Jose CA, US

Assignee:

Hitachi Global Storage Technologies - Amsterdam

International Classification:

G01K001/00

US Classification:

702132000

Abstract:

A computer system that adjusts an internal temperature of a hard disk drive (HDD) during HDD testing. An HDD test program under the control of the computer system is performed within a pre-determined optimal test temperature range. The HDD is kept within this pre-determined test temperature range by the computer system switching HDD operation modes back and forth between a higher heat generating Rapid Seek Mode and a lower heat generating IDLE mode. The HDD is thus kept within the optimal test temperature range without the use of external heating and/or cooling devices.

US Patent:

20160111114, Apr 21, 2016

Filed:

Oct 17, 2014

Appl. No.:

14/517584

Inventors:

- Amsterdam, NL
Jorge F. Escobar - San Jose CA, US
David H. Jen - San Jose CA, US
Scott McCoy - Pleasanton CA, US
Thomas Nguyen - San Jose CA, US
Vedantham Raman - Morgan Hill CA, US
Kris Schouterden - San Jose CA, US

International Classification:

G11B 5/41
G11B 5/55

Abstract:

Cleaning a recording head slider in-drive during operation is accomplished by periodically performing a series of full stroke seek operations, whereby liquid contaminants that may have migrated to the head slider are flung from the slider and liquid from the disk surface may be adsorbed onto the slider for removal by way of flinging. Consequently, head-disk spacing may be stabilized and data write operations improved. Furthermore, the series of full stroke seek operations may be performed at predetermined intervals, and for a predetermined period of time. However, the series may be interrupted by a client request, and continued thereafter, so as not to affect the operational status of the recording system.