Patents by Inventor Yoshikazu Tsuyuguchi

Yoshikazu Tsuyuguchi 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).

  • Electric power supply system
    Patent number: 5493155
    Abstract: This electric power supply system includes an air conditioner serving as load, a solar photovoltaic cell for supplying power to the air conditioner, and a system power control circuit and further including a commercial power source for use in combination with the solar photovoltaic cell for supplying additional power when insufficient, power is supplied from the solar photovoltaic cell to the air conditioner. In an operation state of the air conditioner, the system power control circuit operates to regulate an operating point of the solar photovoltaic cell and variably regulate the supplied power from the solar photovoltaic cell while comparing required power of the air conditioner with the supplied power from the solar photovoltaic cell.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: February 20, 1996
    Assignees: Sharp Kabushiki Kaisha, The Kansai Electric Power Co., Inc.
    Inventors: Mitsuo Okamoto, Hirokazu Kodama, Tsukasa Takebayashi, Kouji Minamino, Yoshikazu Tsuyuguchi, Shigeru Ohmori