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Jeffrey Barina Phones & Addresses

  • Fort Collins, CO
  • 4919 County Road 23, Loveland, CO 80537
  • 6433 La Cumbre Rd, Somis, CA 93066
  • 2940 Kyle Cir, Loveland, CO 80537

Work

Position: Sales Occupations

Education

Degree: Bachelor's degree or higher

Resumes

Resumes

Jeffrey Barina Photo 1

Jeffrey Barina

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Jeffrey Barina Photo 2

Jeffrey Barina

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Location:
United States

Business Records

Name / Title
Company / Classification
Phones & Addresses
Jeffrey A. Barina
JEFFREY BARINA CONSULTING, LLC

Publications

Us Patents

Piezoelectric Head Loading And Unloading Device For Rigid Disc Drives

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US Patent:
6362933, Mar 26, 2002
Filed:
Feb 24, 1997
Appl. No.:
08/793474
Inventors:
Joseph M. Sampietro - Tarzana CA
Khosrow Mohajerani - Newbury Park CA
Anoush M. Fard - Agoura Hills CA
Richard G. Krum - Thousand Oaks CA
Jeffrey G. Barina - Somis CA
Muhammad A. Hawwa - Simi Valley CA
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 554
US Classification:
360105
Abstract:
A system for loading a transducing head ( ) to a flying elevation proximate a rotating surface of a disc ( ) is disclosed. The system includes a piezoelectric device ( ) that is selectively expanded and contracted to control a height of the head ( ) on a flexure spring ( ) from the surface of the disc ( ). The system preferably includes control circuitry ( ) for generating electrical control signals to manage the expansion and contraction of the piezoelectric device ( ) according to operating characteristics of the disc ( ).

Increased Slip Force Pivot Bearing

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US Patent:
6754046, Jun 22, 2004
Filed:
Nov 30, 2001
Appl. No.:
09/998119
Inventors:
Jeffrey Gerard Barina - Loveland CO
Ryan Andrew Sievers - Lyons CO
Bruce Lynn Blakeslee - Golden CO
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 2108
US Classification:
3602656
Abstract:
The sleeve of an actuator bearing cartridge is provided with an inclined surface on its outer surface. A tolerance ring is placed around the sleeve, and the cartridge and ring are then press-fit into the actuator bore together. Axial slippage of the ring and actuator relative to the cartridge is prevented as the ring is effectively wedged between the inclined surface and the inner surface of the actuator bore.

Inertial Latch For Mobile Disc Drive

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US Patent:
63271192, Dec 4, 2001
Filed:
Dec 22, 1999
Appl. No.:
9/470923
Inventors:
Jeffrey Gerard Barina - Loveland CO
Frederick Frank Kazmierczak - Erie CO
Robert Terry Haas - Longmont CO
Michael Alan Maiers - Longmont CO
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 554
G11B 2122
US Classification:
3602564
Abstract:
An inertial latch apparatus for maintaining an actuator arm in a disc drive in a predetermined position has an elongated inertial beam member pivotally mounted in the disc drive for rotation in a plane parallel to the plane of rotation of the actuator arm and a latch member pivotally mounted in the disc drive for rotation between a disengaged position permitting movement of the actuator arm when the latch member is in the disengaged position and an engaged position in interference relation to a portion of the actuator arm to prevent movement of the actuator arm when the drive is subjected to an external shock load. The latch member rotates in only one direction in response to rotation of the beam member in either a clockwise or counterclockwise direction from a neutral position.

Method Of Making An Actuator Arm Integrated Piezoelectric Microactuator

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US Patent:
62985450, Oct 9, 2001
Filed:
Dec 10, 1999
Appl. No.:
9/459140
Inventors:
Khosrow Mohajerani - Newbury Park CA
Joseph M. Sampietro - Tarzana CA
Anoush M. Fard - Agoura Hills CA
Jeffrey G. Barina - Somis CA
Muhammad A. Hawwa - Simi Valley CA
LeRoy A. Volz - Northridge CA
Tien Q. Le - Camarillo CA
Daniel R. Vigil - Agoura Hills CA
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 542
US Classification:
2960303
Abstract:
A system for positioning a transducing head in a disc drive device over a selected track of a rotatable disc includes an actuator arm which is rotatable about an axis, a head suspension mechanism connected to the actuator arm, and a slider carrying a transducing head and supported by the head suspension mechanism. A low resolution motor moves the actuator arm about the axis to effect coarse movement of the head between tracks of the disc. A piezoelectric element is embedded in the actuator arm to distort the arm to effect fine positioning of the head. Control circuitry distributes electrical signals to the low resolution motor and the piezoelectric element to selectively control movement thereof. The piezoelectric element is embedded in the actuator arm by removing a predetermined amount of material from the actuator arm and bonding the piezoelectric element in the resulting space in the actuator arm.

Bimorph Piezoelectric Microactuator Head And Flexure Assembly

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US Patent:
61081752, Aug 22, 2000
Filed:
May 1, 1997
Appl. No.:
8/836265
Inventors:
Muhammad A. Hawwa - Simi Valley CA
Joseph M. Sampietro - Tarzana CA
Anoush M. Fard - Agoura Hills CA
Jeffrey G. Barina - Somis CA
Khosrow Mohajerani - Newbury Park CA
Assignee:
Seagate Technology, Inc. - Scotts Valley CA
International Classification:
G11B 555
G11B 2110
US Classification:
3602944
Abstract:
A head flexure assembly for positioning a transducing head over a selected track of a rotatable disc in a disc drive system having an actulator arm and head suspension includes a bimorph piezoelectric microactuator having first and second ends. The first end of the microactuator is attached to the actuator arm, and a flexure is attached to the second end of the microactuator. A slider carrying the transducing head is attached to the flexure.

Actuator Arm Integrated Piezoelectric Microactuator

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US Patent:
60522518, Apr 18, 2000
Filed:
May 12, 1997
Appl. No.:
8/836292
Inventors:
Khosrow Mohajerani - Newbury Park CA
Joseph M. Sampietro - Tarzana CA
Anoush M. Fard - Agoura Hills CA
Jeffrey G. Barina - Somis CA
Muhammad A. Hawwa - Simi Valley CA
LeRoy A. Volz - Northridge CA
Tien Q. Le - Camarillo CA
Daniel R. Vigil - Agoura Hills CA
Assignee:
Seagate Technology, Inc. - Scotts Valley CA
International Classification:
G11B 555
US Classification:
360 7805
Abstract:
A system for positioning a transducing head in a disc drive device over a selected track of a rotatable disc includes an actuator arm which is rotatable about an axis, a head suspension mechanism connected to the actuator arm, and a slider carrying a transducing head and supported by the head suspension mechanism. A low resolution motor moves the actuator arm about the axis to effect coarse movement of the head between tracks of the disc. A piezoelectric element is embedded in the actuator arm to distort the arm to effect fine positioning of the head. Control circuitry distributes electrical signals to the low resolution motor and the piezoelectric element to selectively control movement thereof. The piezoelectric element is embedded in the actuator arm by removing a predetermined amount of material from the actuator arm and bonding the piezoelectric element in the resulting space it the actuator arm.

Active Noise Cancellation In Disc Drives

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US Patent:
61571164, Dec 5, 2000
Filed:
Jan 28, 1998
Appl. No.:
9/014649
Inventors:
Joseph M. Sampietro - Tarzana CA
Muhammad A. Hawwa - Simi Valley CA
Khosrow Mohajerani - Newbury Park CA
Anoush M. Fard - Agoura Hills CA
Jeffrey G. Barina - Somis CA
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
H01L 4104
US Classification:
310334
Abstract:
Noise effects in a disc drive having a disc on a rotating spindle in a housing are reduced by inducing vibrations in the housing of the disc drive that at least partially cancel a characteristic acoustic noise signal of the drive.

E-Block Head Stack Microactuator Assembly

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US Patent:
60259752, Feb 15, 2000
Filed:
May 1, 1997
Appl. No.:
8/817863
Inventors:
Anoush M. Fard - Agoura Hills CA
Khosrow Mohajerani - Newbury Park CA
Joseph M. Sampietro - Tarzana CA
Jeffrey G. Barina - Somis CA
Muhammad A. Hawwa - Simi Valley CA
Assignee:
Seagate Technology, Inc. - Scotts Valley CA
International Classification:
G11B 556
US Classification:
360109
Abstract:
A system for positioning a transducing head of a disc drive over a selected track (42) of a rotatable disc (40) includes an actuator assembly (20,50) having an E-block body (25) including a cavity (37), at least one actuator arm (30) extending from the E-block body (25), a head suspension mechanism (34,36,38) including the transducing head connected to an end of the actuator arm (30), and a pivot cartridge (26) in the cavity (37) in the E-block body (25). The E-block body (25) is attached to the pivot cartridge (26) and forms a hinge point (39) between the E-block body (25) and the pivot cartridge (26). A low resolution motor (22) rotates the actuator assembly (20,50) about an axis (24) to effect coarse positioning of the head with respect to the selected track (42) of the rotatable disc (40). A piezoelectric element (27,52) in the E-block body (25) is selectively expanded and contracted to distort the E-block body (25) around the hinge point (39) to effect fine positioning of the head with respect to the selected track (42) of the rotatable disc (40).
Jeffrey G Barina from Fort Collins, CO, age ~65 Get Report