Patents by Inventor Chon Ngoc Vo

Chon Ngoc Vo 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).

  • Thin film magnetic disk with chromium-titanium seed layer
    Patent number: 5789056
    Abstract: The present invention describes a disk drive and a thin film magnetic disk with improved recording performance of a magnetic medium having a thin seed layer material consisting of a CrTi alloy between the underlayer and the substrate. The seed layer thickness should be between 5-150.ANG. with 5-30.ANG. being preferable. The percentage of Ti should be greater than 5 at % with recording performance of the magnetic medium improving with increased percentage of Ti. The addition of Ti to Cr, increases the operable thickness range for the seed layer and, thereby, improves the manufacturability.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: August 4, 1998
    Assignee: International Business Machines Corporation
    Inventors: Xiaoping Bian, Mary Frances Doerner, Mohammad Taghi Mirzamaani, Chon Ngoc Vo