Patents by Inventor Magenthiran Verapatran

Magenthiran Verapatran 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).

  • Single surface annealing of glass disks
    Patent number: 8893527
    Abstract: A method for annealing a glass disk is disclosed. The glass disk is placed on a base, whereby the bottom surface of the glass disk makes a contact with the base, and the top surface of the glass disk is exposed to air. The glass disk is heated with thermal energy supplied to the glass disk, the thermal energy comprising first thermal energy supplied from the air through the top surface and second thermal energy supplied from the base through the bottom surface.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: November 25, 2014
    Assignee: WD Media, LLC
    Inventors: Richie Y. Chan, Magenthiran Verapatran, Mohamad F. Azmi, Beehuah Ong
  • Composite magnetic recording medium
    Patent number: 8800322
    Abstract: A method for manufacturing glass hard disk substrates comprises annealing and then tempering previously formed glass hard disk substrates. The annealed and tempered glass hard disk substrates have improved strength and stress resistance without chemical treatments.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: August 12, 2014
    Assignee: WD Media, LLC
    Inventors: Richie Yuan Lin Chan, Magenthiran Verapatran, Mohamad Faisal Azmi, Beehuah Ong
  • Composite magnetic recording medium
    Patent number: 8316668
    Abstract: A method for manufacturing glass hard disk substrates comprises annealing and then tempering previously formed glass hard disk substrates. The annealed and tempered glass hard disk substrates have improved strength and stress resistance without chemical treatments.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: November 27, 2012
    Assignee: WD Media, Inc.
    Inventors: Richie Yuan Lin Chan, Magenthiran Verapatran, Mohamad Faisal Azmi, Beehuah Ong