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Roel B Dieron

from San Jose, CA
Age ~57
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Also known as:
Roel I Dieron
Phone and address:
7074 Webb Canyon Dr, San Jose, CA 95120
Related to:
Ashley Dieron, 32Lino B Dieron, 62Celerina Basallo Dieron, 87Celina B Dieron, 63Sandra K DieronShoapeng Dieron, 53Sally Shoapeng Dieron, 53Bernadette R Dieron, 58Lino D Dieron, 92
Connected to:
Karlo R Dieron, 35Audra R Diers, 49Chris D Diers, 54Janice L Diers, 83Leon A Diers, 75Linda T Diers, 65Michael S Diers, 61Mitchell W Diers, 39Sara W Diers, 80Stephanie F Diers, 66

Roel Dieron Phones & Addresses

  • 7074 Webb Canyon Dr, San Jose, CA 95120
  • 848 Downswood Ct, San Jose, CA 95120
  • 4969 Berkeland Ct, San Jose, CA 95111 (408) 363-9640
  • San Diego, CA
  • Santa Barbara, CA
  • Berkeley, CA

Work

Company: Apple Dec 2007 Position: Engineer

Education

Degree: MS School / High School: University of California, Berkeley 1994 to 1996 Specialities: Mechanical Engineering

Skills

Failure Analysis • Design of Experiments • Design For Manufacturing • Engineering Management • Engineering • Embedded Systems • Debugging • Manufacturing • Semiconductors • Product Design • Firmware • Product Lifecycle Management • Finite Element Analysis • Injection Molding • Spc • Fmea • Simulations • Product Development • Ansys • Cross Functional Team Leadership • Testing • Six Sigma

Languages

English

Interests

Exercise • Home Improvement • Shooting • Reading • Gourmet Cooking • Sports • Golf • Home Decoration • Photograph • Cooking • Electronics • Outdoors • Crafts • Music • Family Values • Movies • Christianity • Kids • Travel • Boating • Investing

Industries

Computer Hardware

Resumes

Resumes

Roel Dieron Photo 1

Engineer

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Location:
7074 Webb Canyon Dr, San Jose, CA 95120
Industry:
Computer Hardware
Work:
Apple since Dec 2007
Engineer
Hitachi Global Storage Tech since 1996
Development Engineer
IBM 1996 - 2001
Development Engineer
Education:
University of California, Berkeley 1994 - 1996
MS, Mechanical Engineering University of California, San Diego 1985 - 1990
Skills:
Failure Analysis
Design of Experiments
Design For Manufacturing
Engineering Management
Engineering
Embedded Systems
Debugging
Manufacturing
Semiconductors
Product Design
Firmware
Product Lifecycle Management
Finite Element Analysis
Injection Molding
Spc
Fmea
Simulations
Product Development
Ansys
Cross Functional Team Leadership
Testing
Six Sigma
Interests:
Exercise
Home Improvement
Shooting
Reading
Gourmet Cooking
Sports
Golf
Home Decoration
Photograph
Cooking
Electronics
Outdoors
Crafts
Music
Family Values
Movies
Christianity
Kids
Travel
Boating
Investing
Languages:
English

Publications

Us Patents

Disk Drive With Head Fly-Height Compensation For Disk Surface Variations

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US Patent:
7457072, Nov 25, 2008
Filed:
Dec 4, 2006
Appl. No.:
11/566678
Inventors:
Roel Dieron - San Jose CA, US
Satyajit Neelkanth Patwardhan - Fremont CA, US
Christopher David Wiederholt - Rochester MN, US
Assignee:
Hitachi Global Storage Technologies Netherlands B.V. - Amsterdam
International Classification:
G11B 5/60
G11B 21/12
US Classification:
360 75
Abstract:
A disk drive has a head fly-height actuator wherein the head-disk spacing is controlled as a function of both the track, and the sector or sectors within the track, where data is to be read or written. The fly-height actuator may be a thermal actuator comprising a heater located on the slider near the read/write head. The fly-height controller (FHC) for the thermal actuator stores band control signal (BCS) values representative of heater power (Hp) to be applied to the thermal actuator when reading or writing to a data track in the associated band of tracks. The FHC also either calculates from a programmed equation or recalls sector control signal (SCS) values representative of an Hp increment to be applied to the thermal actuator depending on the sector or sectors where data is to be written. The FHC sums the appropriate SCS value with the appropriate BCS value to achieve the desired Hp, resulting in the optimal fly-height not only for the selected band but also for the selected sector or sectors.

Disk Drive With Improved Method For Operating A Thermal Head Fly-Height Actuator

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US Patent:
7375914, May 20, 2008
Filed:
Feb 27, 2007
Appl. No.:
11/679794
Inventors:
Roel Dieron - San Jose CA, US
Satyajit Neelkanth Patwardhan - Fremont CA, US
Christopher David Wiederholt - Rochester MN, US
Assignee:
Hitachi Global Storage Technologies Netherlands B.V. - Amsterdam
International Classification:
G11B 21/02
US Classification:
360 75
Abstract:
A disk drive has a resistive heater located near the read/write head as a thermal fly-height actuator and uses an improved method for operating the fly-height actuator. As part of the method, the heater may be deactivated during a seek to minimize the risk of head-disk contacts. When a write command is received, a level of heater power is applied to pre-heat the write head prior to writing the initial data sectors. This pre-heating heater power level may be higher than the power level used for writing. Then when writing commences, the lower power level is applied to the heater so the write head has the optimal head-disk spacing during the writing of all the data sectors, including the initial data sectors. Even though the heater may be deactivated during the seek the controller can initiate pre-heating during the last portion of the seek before the write head has reached the target track.
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Roel B Dieron from San Jose, CA, age ~57 Get Report