Patents by Inventor Masamichi Shinmi

Masamichi Shinmi 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: 4858281
    Abstract: A button device has a head member and a back member joined therewith, the head member having a central cavity dimensioned to receive an insert member with a press-fit. The insert member is generally dome-shaped with its peripheral wall upwardly tapered. The cavity is defined by an inner wall initially upwardly flared but deformed to taper when a peripheral ridge is clamped against the insert member by a punch capable of producing a clamping pressure of a bidirectional vector.
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: August 22, 1989
    Assignee: Yoshida Kogyo K. K.
    Inventors: Hirokazu Watanabe, Masamichi Shinmi