Steven Harry Voss

US Patent:

6947242, Sep 20, 2005

Filed:

Apr 16, 2002

Appl. No.:

10/123719

Inventors:

Hong S. Seing - San Jose CA, US
Bob C. Robinson - Hollister CA, US
Ullal Vasant Nayak - San Jose CA, US
Carl Robert Mendel - Santa Clara CA, US
Wesley LeRoy Hillman - Morgan Hill CA, US
Tony Mello - San Jose CA, US
Steven Harry Voss - Rochester MN, US

Assignee:

Hitachi Global Storage Technologies Netherlands B.V. - Amsterdam

International Classification:

G11B021/02

US Classification:

360 75, 360 25, 324210

Abstract:

Disclosed is an apparatus and method for dynamic fly height and roll adjustment of a physical asperity sensor (PAS) head. The PAS head is used to test disk asperity heights and mechanical interference (commonly known as glide height and take off height). The PAS may be adjusted through a pivoting device such as a joystick coupled through one or more actuators to the pivoting device by actuator arms. In one embodiment, the actuator is a piezoelectric motor. The PAS head may utilize a detector to indicate the distance of the disk asperity from the PAS head. The method comprises receiving the signal and in response, operating the actuators to adjust the position of the pivoting device to obtain a selected positioning of either the fly height or the roll of the PAS.

US Patent:

60889128, Jul 18, 2000

Filed:

Jul 1, 1998

Appl. No.:

9/109023

Inventors:

Edward Kou-Wei King - Fremont CA
Darrick Taylor Smith - San Jose CA
Steven Harry Voss - Rochester MN

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

B23P 1900

US Classification:

29759

Abstract:

A clamp assembly holds an integrated lead suspension during assembly. The clamp assembly has a number of features for precisely positioning the integrated lead suspension while transducer heads are being mechanically and electrically connected to it. The clamp assembly works in conjunction with a stationary platform which restricts movement of the suspension in three directions. The clamp assembly includes upper and lower support plates which compensate for lateral misalignment, and a pair of clamps which independently isolate the suspension and slider while compensating for rotational misalignment.

US Patent:

56643195, Sep 9, 1997

Filed:

Jun 6, 1995

Appl. No.:

8/471505

Inventors:

Samir Elias Abboud - Hayward CA
Nickolas Christopher Apuzzo - Rochester MN
Jeffrey Bernard Brown - Rochester CA
Earl Albert Cunningham - Rochester MN
David Malcolm Hannon - Palo Alto CA
Raymond Patrick Mallette - Shelburne VT
Paul Sheldon Tyler - Rochester MN
Steven Harry Voss - Rochester MN
Albert John Wallash - Morgan Hill CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 5127

US Classification:

2960308

Abstract:

The magnetic states of MR reproducing heads are reinitialized during media drive manufacturing by applying initializing magnetic fields to the transducers after they have been manufactured and incorporated into media drive assemblies.

US Patent:

59868520, Nov 16, 1999

Filed:

Oct 19, 1992

Appl. No.:

7/963440

Inventors:

Lowell James Berg - Rochester MN
William Woodrow Brooks - Rochester MN
Jerome Thomas Coffey - Oronoco MN
Daniel Lee Good - Rochester MN
Richard Greenberg - Rochester MN
Peter Maurice Herman - Oronoco MN
John Charles Jans - Rochester MN
Kenneth William Meyer - Rochester MN
Jerry Lee Neubauer - Stewartville MN
John Ralph Reidenbach - Rochester MN
Steven Harry Voss - Rochester MN
Donald John Wanek - Rochester MN
Walter Ervin Zahn - Oronoco MN

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 554
G11B 3300

US Classification:

360104

Abstract:

A low profile, high capacity, high performance disk drive includes a plurality of disk surfaces mounted in parallel for simultaneous rotation about an axis. Each of a plurality of data transducer heads for reading and/or writing data to the data surfaces is attached to a slider. A stacked arm actuator for moving the data transducer heads in a radial direction across the disk surfaces includes a supporting arm and a suspension load beam attached to the supporting arm. The suspension load beam connects the supporting arm to the slider. The suspension load beam includes a load dimple bearing on the slider and has opposed stiffening flanges extending in a plane adjacent the slider. The actuator includes a stack of 9 head arm suspension assemblies and the stack has a height of 16. 634 mm. An interdisk spacing of less than 1. 4 mm provides a height dimension of 14.

US Patent:

52671062, Nov 30, 1993

Filed:

Jun 4, 1992

Appl. No.:

7/893271

Inventors:

Boyd M. Brue - Rochester MN
Pete M. Herman - Oronoco MN
Jerry L. Neubauer - Stewartville MN
Steven H. Voss - Rochester MN

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 1702

US Classification:

360 9808

Abstract:

A system is disclosed for clamping disks in a spaced parallel relationship around a circular hub in a disk drive storage system. An annular clamp is provided which includes tabs extending inwardly into the aperture of the annular clamp which define a slightly smaller aperture. When a collapsing force is applied to the annular clamp, these tabs are displaced outwardly such that the annular clamp may be placed over the circular hub. The circular hub includes a lip for receiving the tabs and prohibiting axial movement of the annular clamp in response to a release of the collapsing force. Annular spacers are also disposed around the circular hub between adjacent disks. In a preferred embodiment of the present invention, each annular spacer includes multiple pads on each side thereof, minimizing any disk distortion which may be caused by spacer size variations.

US Patent:

57839816, Jul 21, 1998

Filed:

Jun 5, 1995

Appl. No.:

8/462348

Inventors:

Samir Elias Abboud - Hayward CA
Nickolas Christopher Apuzzo - Rochester MN
Jeffrey Bernard Brown - Rochester CA
Earl Albert Cunningham - Rochester MN
David Malcolm Hannon - Palo Alto CA
Raymond Patrick Mallette - Shelburne VT
Paul Sheldon Tyler - Rochester MN
Steven Harry Voss - Rochester MN
Albert John Wallash - Morgan Hill CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H01F 720

US Classification:

335284

Abstract:

The magnetic states of MR reproducing heads are reinitialized during media drive manufacturing by applying initializing magnetic fields to the transducers after they have been manufactured and incorporated into media drive assemblies.

US Patent:

56172893, Apr 1, 1997

Filed:

Jun 5, 1995

Appl. No.:

8/463391

Inventors:

Samir E. Abboud - Hayward CA
Nickolas C. Apuzzo - Rochester MN
Jeffrey B. Brown - Rochester MN
Earl A. Cunningham - Rochester MN
David M. Hannon - Palo Alto CA
Raymond P. Mallette - Shelburne VT
Paul S. Tyler - Rochester MN
Steven H. Voss - Rochester MN
Albert J. Wallash - Morgan Hill CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H01F 1300

US Classification:

361151

Abstract:

The magnetic states of MR reproducing heads are reinitialized during media drive manufacturing by applying initializing magnetic fields to the transducers after they have been manufactured and incorporated into media drive assemblies.

US Patent:

46835059, Jul 28, 1987

Filed:

Dec 24, 1984

Appl. No.:

6/685433

Inventors:

Laurence J. Schmidt - Rochester MN
Randall L. Severson - Rochester MN
Lyle R. Tufty - Elgin MN
Steven H. Voss - Rochester MN

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B 5012
G11B 2303

US Classification:

360 98

Abstract:

A disk pack assembly for use in a disk drive has disks which are alternately diametrically offset about a spindle axis of rotation. The disks are positioned as a function of their outer edges such that alternate opposite outer edges line up as though they were the outer edges of centered nominal diameter disks. This results in an increase in the number of axial nodal points for potential imbalance moments and reduces the amplitude of associated vibrations. Disk spacers are also alternately diametrically offset about the spindle axis so tht pairs of like components tend to balance each other to minimize potential vibrations.