Patents by Inventor Takamitsu Yamazaki

Takamitsu Yamazaki 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).

  • Drinking cup cover
    Patent number: 4113135
    Abstract: A lid for a disposable drinking cup, and which includes a self-closing opening therethrough so that the lid can be retained upon the cup while drinking therefrom, the opening being closable by a flap that is pushed into an opened position by pressure from a person's lip whenever placed thereagainst.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: September 12, 1978
    Inventor: Takamitsu Yamazaki