Patents by Inventor Congyi Mu

Congyi Mu 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).

  • Method and system for controlling the eccentricity of bonded multiple optical discs
    Patent number: 7740729
    Abstract: Techniques for bonding two disks with a minimized eccentricity (ECC) are disclosed. A positioning header includes an ECC controlling structure that further includes a positioning header. In one embodiment, the position header includes three members that form a round stand with a diameter smaller than the inner diameter of the disks. The round stand expands to the inner diameter of the disks to close the gap as a result of the difference between the two diameters when the three members are caused to expand. In one embodiment, the movement of the three members is controlled by magnetic means. Depending on the positions of the ECC controlling structure, the three members are expanded from or restored to their default positions.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: June 22, 2010
    Assignees: Dongguan Anwell Digital Machinery Co., Ltd., Anwell Precision Technology (HK) Limited
    Inventors: Kai Leung Fan, Ming Sang Yeung, Guoyong Zhang, Congyi Mu, Hong Wu, Ming Li