Patents by Inventor Thomas Yatabe

Thomas Yatabe 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).

  • Patent number: 4431713
    Abstract: A high voltage cell or battery has its voltage reduced for lower voltage applications by means of volt lowering diodes i.e. p-n junction and resistive elements placed in series with the cells and the appliance to be electrically powered.
    Type: Grant
    Filed: April 15, 1982
    Date of Patent: February 14, 1984
    Assignee: Duracell Inc.
    Inventors: John R. Fehling, John P. Mathews, Thomas Yatabe