Patents by Inventor Thomas K. Ishii

Thomas K. Ishii 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).

  • Cavity antenna microwave powered turntable
    Patent number: 4517432
    Abstract: A portable turntable for use in microwave ovens which is used as a supporting base for a container of food which is cooked within the oven and adapted to gradually rotate the same, the apparatus including an electric motor which is mounted in and enclosed by a metal housing which housing has cavities tuned to capture the microwaves in the oven to power the turntable. The metal housing is enclosed by an outer enclosure of non-metallic material to prohibit electrical arcing between the metal portions and the oven walls.
    Type: Grant
    Filed: December 13, 1982
    Date of Patent: May 14, 1985
    Assignee: Northland Aluminum Products, Inc.
    Inventors: Thomas K. Ishii, Jorgen A. Jorgensen