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Arafat M Butt

from Lake Forest, CA
Age ~52

Arafat Butt Phones & Addresses

  • Lake Forest, CA
  • Broadlands, VA
  • Marlborough, MA
  • Seattle, WA
  • Irvine, CA

Work

Company: Western digital corporation (wdc) Nov 2009 Position: Principal engineer/ senior principal engineer, program management

Education

School / High School: UCLA, ANDERSON SCHOOL OF MANAGEMENT- Los Angeles, CA Jun 2009 Specialities: M.B.A.

Skills

Cross functional collaboration • project management • problem analysis and resolution • failure analysis • data collection and analysis • competitive analysis • market research

Industries

Computer Hardware

Resumes

Resumes

Arafat Butt Photo 1

Arafat Butt Lake Forest, CA

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Work:
WESTERN DIGITAL CORPORATION (WDC)

Nov 2009 to Present
Principal Engineer/ Senior Principal Engineer, Program Management

Engineer/ Senior Engineer/ Principal Engineer, Servo Development
Aug 2000 to Nov 2009

Education:
UCLA, ANDERSON SCHOOL OF MANAGEMENT
Los Angeles, CA
Jun 2009
M.B.A.

UNIVERSITY OF WASHINGTON
Seattle, WA
Jun 2000
M.Sc. in Mechanical Engineering

GIK INSTITUTE OF ENGINEERING SCIENCES & TECHNOLOGY
May 1997
B.Sc. in Mechanical Engineering

Skills:
Cross functional collaboration, project management, problem analysis and resolution, failure analysis, data collection and analysis, competitive analysis, market research
Arafat Butt Photo 2

Arafat Butt

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Location:
Orange County, California Area
Industry:
Computer Hardware
Skills:
Cross-functional Team Leadership
Project Management
Testing
Project Planning
Product Management

Publications

Us Patents

Data Storage Testing Apparatus For Delivering Linear Or Rotational Acceleration

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US Patent:
7013731, Mar 21, 2006
Filed:
Oct 15, 2004
Appl. No.:
10/966550
Inventors:
Wally Szeremeta - Mission Viejo CA, US
Arafat M. Butt - Lake Forest CA, US
Raffi Codilian - Irvine CA, US
Assignee:
Western Digital Technologies, Inc. - Lake Forest CA
International Classification:
G01N 29/00
B06B 3/00
H04R 9/04
US Classification:
73593, 73668, 73663
Abstract:
A testing apparatus for use with a data storage component that includes a base platform and a retaining element coupled to the base platform. The retaining element is sized and configured to retain the data storage component. The retaining element is linearly movable relative to the base platform during a linear acceleration mode without substantial rotational movement. The retaining element is rotationally movable relative to the base platform without substantial linear movement during a rotational acceleration mode. The testing apparatus further includes an actuator disposable in mechanical communication with the retaining element for moving the retaining element relative to the base platform.

Disk Drive Having Guide-Vanes

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US Patent:
7031104, Apr 18, 2006
Filed:
Apr 30, 2002
Appl. No.:
10/137481
Inventors:
Arafat M. Butt - Lake Forest CA, US
Raffi Codilian - Irvine CA, US
Assignee:
Western Digital Technologies, Inc. - Lake Forest CA
International Classification:
G11B 33/14
G11B 5/54
US Classification:
360 9702, 720649
Abstract:
A disk drive includes an enclosure, a rotatable disk and an actuator arm, and also includes a plurality of arcuate channels. Airflow is created within the enclosure when the disk rotates. The plurality of arcuate channels facing the disk to decrease the turbulence of the airflow with respect to the actuator arm. The arcuate channels are formed on at least one portion of the enclosure.

Method And Disk Drive For Improving Head Position Accuracy During Track Following Through Real-Time Identification Of External Vibration And Monitoring Of Write-Unsafe Occurrences

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US Patent:
6900958, May 31, 2005
Filed:
Jul 31, 2003
Appl. No.:
10/632434
Inventors:
Li Yi - Berkeley CA, US
Yanbin Song - Irvine CA, US
David A. Spaulding - San Juan Capistrano CA, US
Arafat M. Butt - Lake Forest CA, US
Robert J. McNab - San Jose CA, US
David D. Nguyen - Fountain Valley CA, US
Assignee:
Western Digital Technologies, Inc. - Lake Forest CA
International Classification:
G11B005/596
US Classification:
360 7702, 360 25
Abstract:
A method is disclosed for improving head position accuracy in a disk drive during track following of concentric data storage tracks through real-time identification of external vibration and monitoring of write-unsafe (WUS) occurrences. In the method, after a seek operation to a predetermined data storage track, the track is followed using a servo control loop having a nominal gain and responsive to a position error signal (PES). After waiting a vibration detection delay period, occurrences of the PES exceeding a WUS limit are counted generating a WUS limit exception count. Also, a property of a variance is determined from spectral power values generated from the PES during track following. If the WUS limit exception count exceeds a first threshold, and if the property of the variance exceeds a second threshold, the nominal gain is increased to a vibration gain within a frequency band, to attenuate the effect of external vibration.
Arafat M Butt from Lake Forest, CA, age ~52 Get Report