Patents by Inventor Tatsuru Takaoka

Tatsuru Takaoka 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: 6210596
    Abstract: A magnetic ceramic composition containing ferrite serving as a primary component and a sintering aid. The composition can be sintered at low temperature. The sintering aid contains about 2-45 mol % Li2O; about 5-40 mol % RO, with R being at least one of Ba, Sr, Ca, and Mg; and about 30-70 mol % (Ti, Si)O2 with SiO2 accounting for at least about 15 mol %. The resultant composition provides inductor elements in which migration of inner conductors is suppressed, and insulation deterioration and increase of direct-current resistance is restrained.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: April 3, 2001
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kazuhiko Takenaka, Tatsuru Takaoka
  • Patent number: 6191667
    Abstract: A laminated body includes a first insulating sheet having first internal conductors disposed thereon, a second insulating sheet having second internal conductors are given, and a protective sheet, wherein the internal conductors define inductors. The first insulating sheet, the second insulating sheet and the protective sheet are stacked on top of each other and laminated to define the laminated body. When a distance between the end surfaces in a length direction of the laminated body and the inductors located adjacent the end surfaces is less than a fixed value, the internal conductors defining the inductors on the side of the end surfaces are arranged in a zig zag pattern which extends toward inner inductors.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: February 20, 2001
    Assignee: Murata Mfg. Co., Ltd.
    Inventors: Kazuhiko Takenaka, Tatsuru Takaoka
  • Patent number: 5412865
    Abstract: A method of manufacturing a layered product to obtain a multilayer ceramic capacitor. A mother sheet supported by a carrier film is cut to obtain respective sheets to form a plurality of sheets. The sheets are transferred to a frame having inner dimensions capable of positioning the sheets inside the frame. The stacked sheets are then pressurized. The arrangement enables the sheets forming the layered product to be stacked for pressurizing without misalignment of internal electrodes embedded in the respective sheets and without air being entrapped between the stacked sheets.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: May 9, 1995
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tatsuru Takaoka, Kouichi Yagi, Yoshiaki Kohno