Patents by Inventor Yutaro Kameyama

Yutaro Kameyama 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 making a printed board
    Patent number: 6139904
    Abstract: A method of making a printed board is provided. The printed board has a base provided with a plurality of through via conductors having through holes extending completely between upper and lower surfaces of the base and closed by resin fillings and a plurality of blind via conductors having depressions closed by resin fillings.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: October 31, 2000
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Kozo Yamasaki, Osamu Hisada, Katsuhiko Hasegawa, Naoki Kito, Satoshi Hirano, Yutaro Kameyama