Patents by Inventor Masanori Akutu

Masanori Akutu 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).

  • Air conditioner having refrigerant pressure control means and driving control method therefor
    Patent number: 5829264
    Abstract: An air conditioner including at least two kinds of refrigerant which are circulated in a refrigerant circuit and have different characteristics, a calculator for calculating the driving capacity of a compressor in accordance with a request load of the refrigerant circuit and outputting a driving capacity signal representing the driving capacity, a driving unit for controlling the driving capacity of the compressor so as to obtain the driving capacity corresponding to the driving capacity signal of the calculator, and correcting means for correcting the driving capacity signal so as to reduce the driving capacity when the refrigerant pressure in the refrigerant circuit exceeds a first pressure value.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: November 3, 1998
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Shigeya Ishigaki, Mikiyasu Sinnsi, Tomohito Koizumi, Katuyuki Tuno, Takahiro Suzuki, Masanori Akutu, Norio Abukawa