Patents by Inventor Pi-Yao Aileen Liu

Pi-Yao Aileen Liu 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).

  • Continuous multi-turn coils
    Patent number: 6577220
    Abstract: A coil element with no solder joints is made of a continuous conductive strip includes a first terminal, a second terminal, a conductive path between the first terminal and the second terminal. The conductive path has curved regions and foldable hinge regions shaped such that the coil element may be folded into single or multi-turn coils for use in transformers and other electronic devices.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: June 10, 2003
    Assignee: Power-One, Inc.
    Inventors: Hanson Liu, Pi-Yao Aileen Liu
  • Continuous multi-turn coils
    Publication number: 20020075117
    Abstract: A coil element with no solder joints is made of a continuous conductive strip includes a first terminal, a second terminal, a conductive path between the first terminal and the second terminal. The conductive path has curved regions and foldable hinge regions shaped such that the coil element may be folded into single or multi-turn coils for use in transformers and other electronic devices.
    Type: Application
    Filed: February 14, 2002
    Publication date: June 20, 2002
    Applicant: International Power Devices, a Boston, Massachusetts corporation
    Inventors: Hanson Liu, Pi-Yao Aileen Liu
  • Continuous multi-turn coils
    Patent number: 6377157
    Abstract: A coil element with no solder joints is made of a continuous conductive strip includes a first terminal, a second terminal, a conductive path between the first terminal and the second terminal. The conductive path has curved regions and foldable hinge regions shaped such that the coil element may be folded into single or multi-turn coils for use in transformers and other electronic devices.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: April 23, 2002
    Assignee: International Power Devices, Inc.
    Inventors: Hanson Liu, Pi-Yao Aileen Liu
  • Continuous multi-turn coils
    Patent number: 6204745
    Abstract: A coil element with no solder joints is made of a continuous conductive strip includes a first terminal, a second terminal, a conductive path between the first terminal and the second terminal. The conductive path has curved regions and foldable hinge regions shaped such that the coil element may be folded into single or multi-turn coils for use in transformers and other electronic devices.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: March 20, 2001
    Assignee: International Power Devices, Inc.
    Inventors: Hanson Liu, Pi-Yao Aileen Liu