Patents by Inventor Toshinori Koyama

Toshinori Koyama 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).

  • Method of forming conductor pattern on wiring board
    Patent number: 6254758
    Abstract: A method of forming a conductor pattern on a wiring board, in which a conductor pattern forming process on the wiring board can be simplified; and an interval between the conductor patterns can be further reduced by suppressing the etching conducted on the side portions of the electrolytic copper plated layer.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: July 3, 2001
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventor: Toshinori Koyama