Patents by Inventor Quek Leong Choo

Quek Leong Choo 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).

  • Cartridge screening technique by using the electrical dynamic bearing resistance
    Publication number: 20010033173
    Abstract: A method for characterizing a bearing cartridge based on a preload applied to the bearing cartridge used in a disc drive, to increase disc drive yield rates. The method begins by loading the bearing cartridge on to a and to an actuator assembly such that the actuator is rotatably attached to the base by the bearing cartridge. Then, the method includes inducing a steady swing in the actuator. Then, the method includes measuring a voltage drop that occurs across the bearing cartridge during the steady swing to characterize the preload applied to the bearing cartridge.
    Type: Application
    Filed: February 23, 2001
    Publication date: October 25, 2001
    Inventors: Eng Hock Lim, Quek Leong Choo, Myint Ngwe, Kah Liang Gan, Beng Wee Quak