Patents by Inventor Kyoji Kawakubo

Kyoji Kawakubo 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: 4604160
    Abstract: This invention concerns a method for the manufacture of a printed wiring board which particularly proves useful as a printed coil. This method is characterized by the fact that in the work in process which has undergone the step for formation of a conductor circuit and which has not undergone the step for separation of a plating resist, the plating resist and other insulating substratal material are separated for transfer from the surface of the substrate having the conductor circuit formed thereon.Since this method permits formation of an extremely thin insulating layer and a conductor circuit layer thicker than the insulating layer, it enables production of very thin printed wiring board and printed coil having high circuit density in the surfaces of component layers as well as in the direction of superposition of component layers.
    Type: Grant
    Filed: January 8, 1985
    Date of Patent: August 5, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Kanji Murakami, Haruo Akahoshi, Mineo Kawamoto, Motoyo Wajima, Yoichi Matsuda, Kyoji Kawakubo, Minoru Kanechiku, Toyofusa Yoshimura, Makoto Matsunaga