Patents by Inventor James Roger Booth

James Roger Booth 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).

  • Planar transformer having integrated cooling features
    Patent number: 6278354
    Abstract: A planar electromagnetic device, such as a planar transformer or planar inductor, is provided with features for cooling that are formed integrally with the windings of the planar device. In a preferred embodiment the planar device uses winding layers (200) having fin portions (116). In a first alternative embodiment a helical winding (500) is formed from a winding stamping (400) having fin portions (412). In a second alternative embodiment, tube portions (802) are formed in a winding stamping (700) used to form a helical winding.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: August 21, 2001
    Assignee: Motorola, Inc.
    Inventor: James Roger Booth
  • Planar transformer having integrated cooling features
    Patent number: 6144276
    Abstract: A planar electromagnetic device, such as a planar transformer or planar inductor, is provided with features for cooling that are formed integrally with the windings of the planar device. In a preferred embodiment the planar device uses winding layers (200) having fin portions (116). In a first alternative embodiment a helical winding (500) is formed from a winding stamping (400) having fin portions (412). In a second alternative embodiment, tube portions (802) are formed in a winding stamping (700) used to form a helical winding.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: November 7, 2000
    Assignee: Motorola, Inc.
    Inventor: James Roger Booth