Patents by Inventor Shelton Gunewardena

Shelton Gunewardena 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).

  • High frequency transformers and high Q factor inductors formed using epoxy-based magnetic polymer materials
    Patent number: 7300615
    Abstract: An electrical component in the form of an inductor or transformer is disclosed which includes one or more coils and a magnetic polymer material located near the coils or supporting the coils to provide an electromagnetic interaction therewith. The magnetic polymer material is preferably a cured magnetic epoxy which includes a mercaptan derivative having a ferromagnetic atom chemically bonded therein. The ferromagnetic atom can be either a transition metal or rare-earth atom.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: November 27, 2007
    Assignee: Sandia Corporation
    Inventors: Robert O. Sanchez, Shelton Gunewardena, James V. Masi
  • High frequency transformers and high Q factor inductors formed using epoxy-based magnetic polymer materials
    Patent number: 6873241
    Abstract: An electrical component in the form of an inductor or transformer is disclosed which includes one or more coils and a magnetic polymer material located near the coils or supporting the coils to provide an electromagnetic interaction therewith. The magnetic polymer material is preferably a cured magnetic epoxy which includes a mercaptan derivative having a ferromagnetic atom chemically bonded therein. The ferromagnetic atom can be either a transition metal or rare-earth atom.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: March 29, 2005
    Inventors: Robert O. Sanchez, Shelton Gunewardena, James V. Masi