Patents by Inventor Lian Yu

Lian Yu 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: 20070100644
    Abstract: A website for marketing real estate or products relating to real estate includes personal webspaces for users. Assigned user roles determine which capabilities they may configure into their webspaces. Users may communicate with each other and with merchants, e.g., by sharing webspaces or by dialogs. Merchants may send product information only certain users in response to users' expressed or inferred desires. Collected product and user data may be used to calculate propensities of individual users, marketability of individual products, or market trends.
    Type: Application
    Filed: October 27, 2005
    Publication date: May 3, 2007
    Inventors: R. Keillor, Thomas Ress, Timothy Walsh, James Matteson, Lian Yu
  • Patent number: 6639995
    Abstract: Disclosed is a concentric magnetic configuration for a speaker system which can produce a full range of frequency sounds from a single source magnet. The magnetic configuration of the present invention includes a high frequency pole plate and one or more middle yoke iron plate placed directly on a cylindrical permanent magnet wherein at least one magnetic flux controlling slot is formed beneath the high frequency pole plate and the middle yoke plate. The multiple air gaps defined by the pole plate and middle yoke iron produce a full range of frequency magnetic fields which can drive the high, medium, and low frequency voice coils.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: October 28, 2003
    Assignee: Advanced Magnetic Technologies, Inc.
    Inventor: You Lian Yu
  • Publication number: 20030138125
    Abstract: Disclosed is a concentric magnetic configuration for a speaker system which can produce a full range of frequency sounds from a single source magnet. The magnetic configuration of the present invention includes a high frequency pole plate and one or more middle yoke iron plate placed directly on a cylindrical permanent magnet wherein at least one magnetic flux controlling slot is formed beneath the high frequency pole plate and the middle yoke plate. The multiple air gaps defined by the pole plate and middle yoke iron produce a full range of frequency magnetic fields which can drive the high, medium, and low frequency voice coils.
    Type: Application
    Filed: January 23, 2002
    Publication date: July 24, 2003
    Inventor: You Lian Yu
  • Patent number: D471191
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: March 4, 2003
    Inventors: Ching Dong Yu, Chang Han Yu, Kuan Lian Yu