Patents by Inventor Katuhiko Maruta

Katuhiko Maruta 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).

  • Laminated capacitor with fuse function
    Patent number: 4894746
    Abstract: A plurality of internal electrodes (17, 18) are formed in a laminated state with a respective dielectric layer (12b, 12c) held between each pair of adjacent internal electrodes to give capacitance. A pair of external electrodes (15, 16) are electrically connected to associated internal electrodes in order to connect the capacitance to external circuits. Each internal electrode comprises a capacitance forming portion (19, 22) a take-out (external connection) portion (20, 23) connected to the associated external electrode, and a fuse portion (21, 24) which electrically interconnects the capacitance forming portion and take-out portion. The fuse portion is melted earlier than the capacitance forming portion and take-out portion by the Joule heat produced when a current higher than a predetermined value flows through the fuse portion.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: January 16, 1990
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Susumu Mori, Katuhiko Maruta