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Joel D Limmer

from Albuquerque, NM
Age ~57
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Also known as:
Douglas J Limmer
Related to:
Nicholas R Weir, 33Brian Scott Wier, 47Rachel Lucking, 62Alyssa Limmer, 35Carl Weir, 35Lori Limmer
Connected to:
Anna Limmer, 42Daphne Limmer, 42Eric D Limmer, 54Jason P Limmer, 58Jon S Limmer, 73Judy A Limmer, 74Julie A Limmer, 53Marie E Limmer, 78Nina D Limmer, 38Dennis Limmex, 62

Joel Limmer Phones & Addresses

  • Albuquerque, NM
  • 8740 Elliot Ave S, Minneapolis, MN 55420
  • 5230 W 102Nd St #318, Minneapolis, MN 55437
  • Bloomington, MN
  • 76 13Th St, Troy, NY 12180
  • 1525 15Th St #2, Troy, NY 12180
  • Burlingame, CA

Resumes

Resumes

Joel Limmer Photo 1

Principal Engineer

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Location:
2912 Mckinnon Way southwest, Albuquerque, NM 87121
Industry:
Mechanical Or Industrial Engineering
Work:
Seagate Technology since Mar 1998
Staff Engineer
RPI Department of Mechanical Engineering Aug 1993 - Jul 1997
Research Assistant
Robotic Development Jul 1989 - Feb 1991
Design Engineer/Programmer
Education:
Rensselaer Polytechnic Institute 1992 - 1997
PhD, Mechanical Engineering Stanford University 1988 - 1989
MS, Mechanical Engineering Rose-Hulman Institute of Technology 1984 - 1988
BS, Mechanical Engineering
Skills:
Fmea
Automation
Testing
Labview
Finite Element Analysis
Failure Analysis
Design of Experiments
Test Equipment
Programming
Signal Processing
Six Sigma
R&D
Joel Limmer Photo 2

Joel Limmer

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Joel Limmer Photo 3

Joel Limmer

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Publications

Us Patents

Capped Polymeric Load/Unload Pads

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US Patent:
6535353, Mar 18, 2003
Filed:
Nov 6, 1998
Appl. No.:
09/188400
Inventors:
Zine Eddine Boutaghou - Vadnais Heights MN
Joel David Limmer - Bloomington MN
Jorge Vicente Hanchi - Bloomington MN
Lance Eugene Stover - Eden Prairie MN
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 2121
US Classification:
3602351, 3602363, 360237
Abstract:
A disk drive system includes a base, a disk stack rotatably attached to the base, and an actuator assembly movably attached to the base. A ramp assembly includes a set of ramps for loading and unloading the sliders and transducing elements carried by the sliders to and from the disks in the disk stack. The ramp assembly is attached to the base. An actuator assembly is movably attached to the base of the disk drive. The actuator assembly moves the load springs and attached slider and transducers to various positions on the disk. The slider is a block of material having corners and edges. Sliders have a backside surface and an air-bearing surface. The slider also has at least one recess therein. One or more pads of shock absorbing material are positioned within at least one of the recesses in the slider. The pads are positioned within one or more recesses to prevent the corners or edges of the block of material near the air-bearing surface from contacting the disk.

Stepped Disc Drive Voice Coil Actuator Acceleration For Reducing Resonance Of Head Level Micro-Actuators

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US Patent:
6751047, Jun 15, 2004
Filed:
Mar 22, 2001
Appl. No.:
09/815412
Inventors:
Wayne Allen Bonin - North Oaks MN
Joel David Limmer - Bloomington MN
Zine Eddine Boutaghou - Vadnais Heights MN
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 5596
US Classification:
360 7806, 360 7805, 360 75, 360 7812
Abstract:
A disc drive having a voice coil actuator with an attached suspension and head, the head including a micro-actuator. The micro-actuator having at least one natural frequency and at least one natural frequency time period. The voice coil actuator is adapted to attenuate a resonance of the micro-actuator at the at least one natural frequency using a stepped acceleration.

Suspension Sense Capability For Windage Control

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US Patent:
6771454, Aug 3, 2004
Filed:
Sep 4, 2001
Appl. No.:
09/945940
Inventors:
Andrew D. White - Eden Prairie MN
Joel D. Limmer - Bloomington MN
Wayne A. Bonin - North Oaks MN
Zine-Eddine Boutaghou - Vadnais Heights MN
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 5596
US Classification:
360 7703, 360 7701
Abstract:
A method and data storage device are provided that reduce off-track motion due to resonant modes in the storage device. The off-track motion is reduced by sensing movement with a sensor located on a suspension assembly of the storage device. Based on this sensed movement, the sensor generates a signal that is used to drive a control system to minimize the off-track motion.

Feed Forward Control Of Voice Coil Motor Induced Microactuator Disturbance

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US Patent:
6778350, Aug 17, 2004
Filed:
Jun 8, 2001
Appl. No.:
09/877345
Inventors:
Wayne A. Bonin - North Oaks MN
Zine-Eddine Boutaghou - Vadnais Heights MN
Joel Limmer - Bloomington MN
Andrew D. White - Eden Prairie MN
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 5596
US Classification:
360 7805
Abstract:
A method is used for moving a transducing head between tracks of a disc in a dual-stage actuation assembly. The dual-stage actuation assembly has a main actuator for coarse positioning of the transducing head and a microactuator for fine positioning of the transducing head. The method comprises accelerating the main actuator during coarse positioning of the transducing head and applying control pulses to the microactuator during coarse positioning by the main actuator to eliminate oscillation of the microactuator during and after coarse positioning.

Hard Drive Actuator Arm With Reduced Skew Variation

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US Patent:
7072147, Jul 4, 2006
Filed:
Jun 20, 2003
Appl. No.:
10/600879
Inventors:
Joel David Limmer - Bloomington MN, US
Zine-Eddine Boutaghou - Vadnais Height MN, US
Wayne Allen Bonin - North Oaks MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 5/55
US Classification:
3602641, 3602656, 3602659, 3602661
Abstract:
A rotary actuator system includes an actuator block, a head mounting block, and a linkage arm connecting the actuator block and the head mounting block. The system further includes an actuator motor operatively connected to the actuator block for rotating a link. The linkage arm includes a drive link which is rotated by the actuator motor and a guide link spaced apart from the drive link. The drive link has a first end and a second end; the drive link is pivotally connected to the actuator block at the first end and connected to the head mounting block at the second end. The guide link has a first end and a second end; the guide link is connected to the actuator block at the first end and connected to the head mounting block at the second end.

Slanted Mounting For Preload Flat Suspension

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US Patent:
7113370, Sep 26, 2006
Filed:
Dec 15, 2003
Appl. No.:
10/736347
Inventors:
Joel D. Limmer - Bloomington MN, US
Bradley J. VerMeer - St. Paul MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 21/16
US Classification:
3602445
Abstract:
An actuator arm of a magnetic disc drive having a mounting surface includes a mounting block having a sloped mounting surface. A base plate of a head gimble assembly is attached to the sloped mounting surface. The head gimbal assembly is unbent in its free state and is bent upon being loaded onto the disc.

Arm-Suspension-Pivot Bearing Integral Design

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US Patent:
7151649, Dec 19, 2006
Filed:
Feb 5, 2003
Appl. No.:
10/358831
Inventors:
Zine-Eddine Boutaghou - Vadnais Heights MN, US
Joel David Limmer - Bloomington MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 5/55
US Classification:
3602641, 3602643, 3602647, 3602657, 3602659
Abstract:
A solid-state actuation mechanism for use in a data storage system. The actuation mechanism includes an anchor fixedly attached to a housing of the data storage system, a spring member including a first end coupled to the anchor, a suspension coupled to a second end of the spring member, the suspension supporting a data head above a media surface, the suspension being biased by the spring member toward a first position, and an actuation component coupled to the suspension. The actuation component configured to apply an actuation force to the suspension to move the suspension laterally relative to the media surface.

Suspension Component With Sealed Damping Layer

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US Patent:
7420778, Sep 2, 2008
Filed:
Dec 22, 2003
Appl. No.:
10/744266
Inventors:
Joseph H. Sassine - Lakeville MN, US
Joel David Limmer - Bloomington MN, US
Zine-Eddine Boutaghou - North Oaks MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 5/48
US Classification:
3602449
Abstract:
An assembly includes a suspension component with a surface extending over a flexible region of the suspension component. The assembly also includes a damping layer disposed in a pattern that extends onto the surface. A sealing layer that is non-friable covers the damping layer. The sealing layer also preferably comprises a shear restraint layer for the damping layer.
Control profile
Joel D Limmer from Albuquerque, NM, age ~57 Get Report