Patents by Inventor Calvin Tue Chiu Siu

Calvin Tue Chiu Siu 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).

  • Patent number: 9339978
    Abstract: Methods of operating a recording media press system are described. The method may include clamping, with a plurality of first tabs, an outer perimeter portion of a first embossing foil to a first die of a die press and clamping with a plurality of second tabs, an outer perimeter portion of a second embossing foil to a second die of the press. The method may also include receiving a magnetic recording disk in the die press, interleaving the plurality of first tabs with the plurality of second tabs to close the die press around the magnetic recording disk, and pressing the first and second embossing foils against the recording media disk to emboss a front and backside of the recording disk with a discrete track recording pattern.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: May 17, 2016
    Assignee: WD Media, LLC
    Inventors: David Treves, Paul C. Dorsey, Calvin Tue Chiu Siu
  • Patent number: 8496466
    Abstract: Recording media press systems and methods of operating such press systems. Press system embodiments include a first foil holder coupled to a first die, the first foil holder including a plurality of first tabs extending radially inward from the first die to clamp first portions of an outer perimeter of a first embossing foil against a surface of the first die and a second foil holder coupled to a second die, the second foil holder including a plurality of second tabs extending radially inward from the second die to clamp second portions of an outer perimeter of a second embossing foil against a surface of the second die. In an embodiment, the first and second outer perimeter portions are complementary arc segments to interdigitate the plurality of first tabs with the plurality of second tabs when the press is closed.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: July 30, 2013
    Assignee: WD Media, LLC
    Inventors: David Treves, Paul C. Dorsey, Calvin Tue Chiu Siu