Patents by Inventor Takahumi Miyamoto

Takahumi Miyamoto 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: 5462838
    Abstract: A method for manufacturing a curved surface multi-layer wiring board having the through-holes and high accurate inner patters with a high reliability. A curved surface multi-layer wiring board is manufactured by processes for forming the inner pattern on the copper clad substrates, and for perforating the holes to the substrates and prepregs, and for laying-up these substrates and prepregs, then for pressing these substrates and prepregs in the formation mould. Then the outer pattern are formed by the laser exposure process after the through holes are connected between the layers. A method is also provided for repeating the laying-up processes in order to obtain a curved surface multi-layer wiring board of which is a three dimensional curved surface.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: October 31, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masahito Sato, Kazuaki Tajima, Yoshio Matsuda, Takahumi Miyamoto
  • Patent number: 5449591
    Abstract: A method for manufacturing a curved surface multi-layer wiring board having highly accurate inner patterns with high reliability. A curved surface multi-layer wiring board is manufactured by providing and pressing a prepreg to form a curved surface, and by plating a copper film on the curved surface. Outer patterns are formed on the copper film. The outer patterns may be formed by a laser exposure process after through-holes are connected between the layers. A method is also provided for repeating the process to obtain a curved surface multi-layer wiring board which has a three dimensional curved surface.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: September 12, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masahito Sato, Kazuaki Tajima, Yoshio Matsuda, Takahumi Miyamoto