Patents by Inventor Yasuo Kuramoto

Yasuo Kuramoto 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).

  • Wax ring tube with graduations
    Patent number: 4687178
    Abstract: A wax ring tube used in manufacture of a ring-like ornament by casting it using a lost-wax process. Plotting graduations are formed on inner peripheral wall surface of a hole bored along the lengthwise direction of a wax ring tube body.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: August 18, 1987
    Inventor: Yasuo Kuramoto