Patents by Inventor Toshiji Chiba

Toshiji Chiba 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 for fabricating a key top
    Patent number: 4968526
    Abstract: A method for making a key top of a push button is disclosed, in which a part of a light intercepting paint, which is the uppermost layer at each of displaying portions on the top surface of the key top, is removed so as to expose a displaying ink printed previously under the layer in accordance with the shape of the display portion.
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: November 6, 1990
    Assignee: Alps Electric Co., Ltd.
    Inventors: Yasuo Takii, Toshiji Chiba, Shigeru Satoh, Shinichi Nagano, Fumio Sakamoto, Atsushi Itoh