Patents by Inventor Tadao Yahagi

Tadao Yahagi 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: 4818960
    Abstract: A composite part and a method of manufacturing the same, comprising a plurality of pairs of terminal members formed in punched regions of a lead frame opposite to each other and shaped by cutting at predetermined positions a plurality of pairs of projection segments coupled at the respective base portions thereof; a plurality of circuit parts disposed and connected between the pairs of projection segments, and an armor molded in a region except the circuit parts and the base portions of the projection segments. The fore ends of the projection segments extending outward from the armor and formable into different shapes depending on the cut points are bent along the wall surfaces of the armor. Accordingly, there can be produced a composite part having any desired one of various functions by selectively changing the cut points of the projection segments. Since such selective change of the cut points can be achieved in the stage of use as well as that of manufacture, a remarkable advantage is attainable.
    Type: Grant
    Filed: June 1, 1988
    Date of Patent: April 4, 1989
    Assignee: TDK Corporation
    Inventors: Hiroshi Satoh, Tadao Yahagi
  • Patent number: 4595901
    Abstract: An inductance device comprises a coil wound on a magnetic core; and an electrode layer made of a metal foil bonded on an end surface of said magnetic core on which an end of said coil and an end of a lead wire are soldered on said metal foil.
    Type: Grant
    Filed: February 16, 1984
    Date of Patent: June 17, 1986
    Assignee: TDK Electronics Co., Ltd.
    Inventor: Tadao Yahagi
  • Patent number: 4490706
    Abstract: An electronic part comprising an electronic element provided with connector electrodes at both ends, a pair of terminals connected to said both electrodes and extended downwardly therefrom, and a covering of molded insulating resin encasing said electronic element with the exception of the outer end portions of said terminals, said outer end portions being bent to fit the bottom of said covering and then folded vertically upward in contact with the both ends of said covering.
    Type: Grant
    Filed: July 8, 1982
    Date of Patent: December 25, 1984
    Assignee: TDK Corporation
    Inventors: Hiroshi Satou, Tadao Yahagi
  • Patent number: 4314221
    Abstract: An inductance device comprises a drum core on which a coil is wound and which has a projection; a rectangular pot core having each concave part on the upper surface and the lower surface and having a hollow for fitting said drum core and a hole for fitting said projection of said drum core; electrode parts which are respectively formed on each side surface and said concave part of the upper surface of said pot core and on the bottom surface of said pot core; said drum core having said coil being fitted into said hollow of said pot core; and said coil being connected to said electrode parts at said concave part by each of lead terminals of said coil; and said drum core being sealed in said hollow.
    Type: Grant
    Filed: September 17, 1980
    Date of Patent: February 2, 1982
    Assignee: TDK Electronics Co., Ltd.
    Inventors: Hiroshi Satou, Tadao Yahagi