Patents by Inventor Tateo Sumiyoshi

Tateo Sumiyoshi 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).

  • Water heater
    Patent number: 4303042
    Abstract: A water heater incorporating a cylindrical heat exchanger installed laterally in the lower part of a water tank. The interior of the heat exchanger has a plurality of circular baffles spaced transversely of the interior. An exhaust pipe covered with a heat insulator extends vertically from the heat exchanger to outside the water tank.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: December 1, 1981
    Assignee: Kabushiki Kaisha Taada
    Inventor: Tateo Sumiyoshi