Patents by Inventor Tony Jing Zhang

Tony Jing Zhang 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).

  • Slider air bearing design and method providing writing of a laser field (WOLF) measurement without substantial fly height affect
    Patent number: 6477013
    Abstract: A slider air bearing design and method providing “writing of laser field” (WOLF) measurement without substantial fly height affect. A central pad at ion-mill height is formed in the cavity between the side rails and rear pad. The central pad allows correlation of WOLF crown measurement values with crown measurements obtain via optical interferometer. Also, the central pad provides good reflective areas while preventing degradation in fly height performance due to the rear pad geometry constraints required by the WOLF measurement process.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: November 5, 2002
    Assignee: International Business Machines Corporation
    Inventors: Soo-Choon Kang, Mark C. McMaster, Tony Jing Zhang