Patents by Inventor Takeshige Maruyama

Takeshige Maruyama 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).

  • Push-button switch
    Patent number: 4382167
    Abstract: A push-button switch comprises a cover member which is made from a synthetic resin, a switch case in which a plurality of fixed terminals are embedded by the unitary molding, and a slide member which receives movable contact pieces therein. Side walls of the switch case have thick-walled base portions and thin-walled upper edge portions, and the cover member is sandwiched between the pair of thin-walled upper edge portions so as to make the pair of opposing side walls parallel.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: May 3, 1983
    Assignee: Alps Electric Co., Ltd.
    Inventors: Takeshige Maruyama, Sadayoshi Iwasaki