Patents by Inventor Chalermchai Suchatpong

Chalermchai Suchatpong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Methods for testing for defects on magnetic media storage disks
    Patent number: 8698492
    Abstract: Methods for testing for defects on magnetic media storage disks are provided. One such method includes dividing a surface of a magnetic media disk into a plurality of radial zones, dividing the disk surface into a plurality of concentric zones, thereby forming a preselected number (N) of wedge subsections for each of the concentric zones, scanning the disk surface for defects, counting the defects contained within each of the wedge subsections, summing the defects contained within two or more of the wedge subsections, comparing the summed defects with a preselected threshold, and determining, based on the comparison, a defect type of the disk.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: April 15, 2014
    Assignee: Western Digital Technologies, Inc.
    Inventors: Chee Wai Mak, Surasith Phongtharapat, Chalermchai Suchatpong