Patents by Inventor Hiromitsu Sasada

Hiromitsu Sasada 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).

  • Heat exchanger and water heater including the same
    Patent number: 8887795
    Abstract: There is provided a heat exchanger and a water heater having the heat exchanger including a uniform thickness of tin plating layer on the inner surface of a water feeding pipe. The heat exchanger H includes copper pipes 8 and 10 disposed in a casing 1 as a water feeding pipe 4 and a turbulent flow generator 13 disposed in the copper pipes 8 and 10. The turbulent flow generator 13 has a copper plating layer 14 on the surface portion thereof. The tin plating layers 17 and 18 are disposed on the inner surface of the copper pipes 8 and 10 and the surface of the turbulent flow generator 13.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: November 18, 2014
    Assignee: Rinnai Corporation
    Inventors: Masayuki Toda, Akira Kumagai, Hiromitsu Sasada
  • HEAT EXCHANGER AND WATER HEATER INCLUDING THE SAME
    Publication number: 20100096103
    Abstract: There is provided a heat exchanger and a water heater having the heat exchanger including a uniform thickness of tin plating layer on the inner surface of a water feeding pipe. The heat exchanger H includes copper pipes 8 and 10 disposed in a casing 1 as a water feeding pipe 4 and a turbulent flow generator 13 disposed in the copper pipes 8 and 10. The turbulent flow generator 13 has a copper plating layer 14 on the surface portion thereof. The tin plating layers 17 and 18 are disposed on the inner surface of the copper pipes 8 and 10 and the surface of the turbulent flow generator 13.
    Type: Application
    Filed: December 29, 2009
    Publication date: April 22, 2010
    Applicant: RINNAI CORPORATION
    Inventors: Masayuki Toda, Akira Kumagai, Hiromitsu Sasada