Gregory A Lyons

US Patent:

6989958, Jan 24, 2006

Filed:

Jun 16, 2003

Appl. No.:

10/462363

Inventors:

Don E. De Leo - Gilroy CA, US
Ta-Chang Fu - San Jose CA, US
Ungtae Kim - San Jose CA, US
Gregory Allen Lyons - Livermore CA, US
Sattar Malek - San Jose CA, US
Daniel Robert Stacer - Morgan Hill CA, US
Stanley Yen Wong - San Jose CA, US

Assignee:

Hitachi Global Storage Technologies Netherlands B.V. - Amsterdam

International Classification:

G11B 5/012

US Classification:

360 9701

Abstract:

A hard disk drive has a motor mounting bracket with mounting screws that attach from outside the drive and external to the seal with a screw bolt pattern diameter that is larger than an outer diameter of the motor hub. This configuration greatly reduces contamination inside the disk drive since all contaminants due to the screws are sealed from entering the disk drive. Consequently, the bottom of the mounting bracket is extended to the form factor limit to increase the internal space that is provided for the stator/winding of the motor. In relatively high platter count disk drives, the bottom disk is positioned very close to the motor bracket with this approach, which normally would cause the air drag to increase drastically and thereby impede the performance of the disk drive. Bosses may be used on the bracket to accommodate blind tap hole depths from the external surface of the bracket.

US Patent:

7149052, Dec 12, 2006

Filed:

Aug 8, 2005

Appl. No.:

11/198984

Inventors:

Don E. De Leo - Gilroy CA, US
Ta-Chang Fu - San Jose CA, US
Ungtae Kim - San Jose CA, US
Gregory Allen Lyons - Livermore CA, US
Sattar Malek - San Jose CA, US
Daniel Robert Stacer - Morgan Hill CA, US
Stanley Yen Wong - San Jose CA, US

Assignee:

Hitachi Global Storage Technologies Netherlands B.V. - Amsterdam

International Classification:

G11B 17/00

US Classification:

360 9701

Abstract:

A hard disk drive has a motor mounting bracket with mounting screws that attach from outside the drive and external to the seal with a screw bolt pattern diameter that is larger than an outer diameter of the motor hub. This configuration greatly reduces contamination inside the disk drive since all contaminants due to the screws are sealed from entering the disk drive. Consequently, the bottom of the mounting bracket is extended to the form factor limit to increase the internal space that is provided for the stator/winding of the motor. In relatively high platter count disk drives, the bottom disk is positioned very close to the motor bracket with this approach, which normally would cause the air drag to increase drastically and thereby impede the performance of the disk drive. Bosses may be used on the bracket to accommodate blind tap hole depths from the external surface of the bracket.

US Patent:

58726799, Feb 16, 1999

Filed:

Jul 1, 1998

Appl. No.:

/108485

Inventors:

Jeffrey Fred Boigenzahn - Rochester MN
Darrell Eugene Bratvold - Rochester MN
Richard Edward Lagergren - Rochester MN
Gregory Allen Lyons - Rochester MN
Brian Lee Rappel - Grand Meadow MN
James Michael Rigotti - Rochester MN
Lyle Rick Tufty - Elgin MN

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 5012
G11B 3300

US Classification:

360 9701

Abstract:

A data storage disk drive is provided with a spindle which supports a plurality of disks having at least one magnetic disk surface to form a spindle assembly for rotation of the disk surfaces about a common axis and a rotary actuator which supports magnetic transducers for movement in unison about respective disk surfaces. The disk drive includes a disk drive enclosure having die-cast generated predetermined zero draft geometries for mounting the spindle motor shaft and the actuator bearing shaft. The enclosure includes a base casting and a cover casting, each casting including structure for locating and retaining electrical connectors used for connecting to a planar electronics card located outside the drive enclosure. The disk drive includes an effective and easily manufacturable electrical path from a flex circuit to an actuator comb. The disk drive includes a tubular chemical breather filter arranged with integral housing and diffusion channels formed in the cover casting.

US Patent:

58726780, Feb 16, 1999

Filed:

May 31, 1996

Appl. No.:

8/656449

Inventors:

Jeffrey Fred Boigenzahn - Rochester MN
Darrell Eugene Bratvold - Rochester MN
Dale C. Goeke - Rochester MN
Michael S. Good - Byron MN
Dale E. Goodman - Oronoco MN
Richard E. Lagergren - Rochester MN
Gregory A. Lyons - Rochester MN
Brian L. Rappel - Grand Meadow MN
James M. Rigotti - Rochester MN
Lyle R. Tufty - Elgin MN

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 3312

US Classification:

360 9701

Abstract:

A data storage disk drive is provided with a spindle which supports at least one disk having at least one magnetic disk surface to form a spindle assembly for rotation of the disk surfaces about a common axis and a rotary actuator which supports at least one magnetic tranducers for movement about respective disk surfaces. The enclosure includes a base casting and a cover casting. The base casting include predetermined registration surfaces for mounting the spindle and the rotary actuator and having a mating face. The cover casting has a mating face for engaging the base mating face to define the disk drive enclosure for enclosing the spindle, the at least one disk surface, the at least one magnetic transducer and the actuator. The mating faces extend along the length of the disk drive enclosure. The base casting including a locational and retention cast pocket structure for locating and retaining electrical connector and a flexible cable used for connecting to a planar electronics card located outside the drive enclosure.

US Patent:

55395953, Jul 23, 1996

Filed:

May 23, 1995

Appl. No.:

8/447409

Inventors:

John L. Beck - Rochester MN
Jeffrey F. Boigenzahn - Rochester MN
Darrell E. Bratvold - Rochester MN
Charles A. Brown - Los Gatos CA
Luke A. Cossette - Rochester MN
Dale C. Goeke - Rochester MN
Michael S. Good - Byron MN
Dale E. Goodman - Oronoco MN
Richard E. Lagergren - Rochester MN
Gregory A. Lyons - Rochester MN
Brian L. Rappel - Grand Meadow MN
James M. Rigotti - Rochester MN
Daniel C. Stucky - Pine Island MN
Lyle R. Tufty - Elgin MN
Herman R. Wendt - San Jose CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 5012
G11B 3314

US Classification:

360 9701

Abstract:

A data storage disk drive is provided with a spindle which supports a plurality of disks having at least one magnetic disk surface to form a spindle assembly for rotation of the disk surfaces about a common axis and a rotary actuator which supports magnetic transducers for movement in unison about respective disk surfaces. The disk drive includes a voltage reference tab provided for quick assembly and removal from an actuator comb. The voltage reference tab maintains the magneto-resistive transducers and the magnetic disks at the same reference voltage potential thus minimizing electrical discharge from the transducer to the disk. The voltage reference tab is a copper tab having symmetrical slots about a fastening hole to facilitate the bending operation and to reduce the rate at which heat is conducted during the soldering process. The tab maintains the voltage reference potential between the head and disk through an extension of the flex cable attached to the actuator.

US Patent:

62855247, Sep 4, 2001

Filed:

May 22, 1995

Appl. No.:

8/445926

Inventors:

Jeffrey Fred Boigenzahn - Rochester MN
Darrell Eugene Bratvold - Rochester MN
Dale Clark Goeke - Rochester MN
Michael Scott Good - Byron MN
Dale E. Goodman - Oronoco MN
Richard Edward Lagergren - Rochester MN
Gregory Allen Lyons - Rochester MN
Brian Lee Rappel - Grand Meadow MN
James Michael Rigotti - Rochester MN
Lyle Rick Tufty - Elgin MN

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 3304
G11B 5012

US Classification:

360 9701

Abstract:

A data storage disk drive is provided with a spindle which supports a plurality of disks having at least one magnetic disk surface to form a spindle assembly for rotation of the disk surfaces about a common axis and a rotary actuator which supports magnetic transducers for movement in unison about respective disk surfaces. The disk drive includes a disk drive enclosure having die-cast generated predetermined zero draft geometries for mounting the spindle motor shaft and the actuator bearing shaft. The enclosure includes a base casting and a cover casting, each casting including structure for locating and retaining electrical connectors used for connecting to a planar electronics card located outside the drive enclosure. The disk drive includes an effective and easily manufacturable electrical path from a flex circuit to an actuator comb. The disk drive includes a tubular chemical breather filter arranged with integral housing and diffusion channels formed in the cover casting.