Patents by Inventor Antony Du

Antony Du 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).

  • Bobbin and its producing method
    Patent number: 6326876
    Abstract: A bobbin for reeling thereon a plurality of threads and its producing method are provided. The bobbin includes a cylinder, a plurality of sleeves setting on the cylinder wherein the cylinder and the sleeves are made of different materials, and a plurality of pins inserting in the sleeves for holding the plurality of threads thereon.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: December 4, 2001
    Assignee: Delta Electronics Inc.
    Inventors: Ming Yeh, Allen Chou, Antony Du
  • Transformer core structure
    Patent number: 5760670
    Abstract: The present invention relates to a tranformer core structure, which includes a rectangular frame core having two long sides and two short sides, with one short side having a recessed part and the other short side being closed to form a junction surface of magnetic path; and a strip core disposed in the rectangular frame core through the recessed part, and having a length similar to that of said long side of said rectangular frame core, but having a width slightly less than that of said recessed part, wherein adjustment of the inductance of the structure is accomplished by moving said strip core along said recessed part to adjust a gap between one end of said strip core and said junction surface of magnetic path.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: June 2, 1998
    Assignee: Delta Electronics, Inc.
    Inventors: Ming Yeh, Y. J. Chen, H. B. Chan, Antony Du, Albert Chang