Patents by Inventor He Ping

He Ping 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).

  • Publication number: 20070171585
    Abstract: The present invention discloses a power converter with low common mode noise. The power converter having a primary side and a secondary side, comprises a transformer having a primary winding and a secondary winding, and at least one electrostatic shield disposed between the primary winding and the secondary winding, wherein the electrostatic shield is configured with partial first region of the primary winding and partial second region of the secondary winding such that the electrostatic shield partially shields with the primary winding and the secondary winding to reach the purpose of suppressing the common mode noise. In addition, another method can be used to reduce the common mode noise of a power converter having primary side and secondary side, which is adding some additional impedance between the static points and jump points of the primary side and secondary side.
    Type: Application
    Filed: January 25, 2006
    Publication date: July 26, 2007
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Lin Sicong, Zhou Min, He Ping, Wei Chen, Jianping Ying
  • Patent number: 6207197
    Abstract: There is provided a drug delivery composition for the controlled release of an active agent in the stomach environment over a prolonged period of time, which comprises a microsphere comprising an active ingredient in the inner core of the microsphere and (i) a rate controlling layer of a water insoluble polymer and (ii) an outer layer of a bioadhesive agent in the form of a cationic polymer.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: March 27, 2001
    Assignee: West Pharmaceutical Services Drug Delivery & Clinical Research Centre Limited
    Inventors: Lisbeth Illum, He Ping
  • Patent number: 5241625
    Abstract: A system for remotely observing and optionally controlling information, including text and graphical images, displayed on a computer from among both homogeneous and heterogeneous computers coupled in a network or via other transport media such as magnetic disks captures window system event messages during a recording process. Such messages are then translated into procedure calls during the imaging process on the destination platform.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: August 31, 1993
    Assignee: Farallon Computing, Inc.
    Inventors: Marc A. Epard, He Ping, Neal E. Trautman, Paul F. VanVleck