Patents by Inventor Yuzo Kamatsu

Yuzo Kamatsu 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).

  • Publication number: 20200363112
    Abstract: In an air conditioner that uses a refrigerant mixture containing at least 1,2-difluoroethylene, high efficiency is achieved. In the air conditioner (1), a compressor (100, 200) can be driven without interposing a power conversion device between an AC power source (90, 190) and a motor (70, 170). Thus, it is possible to provide the air conditioner (1) that is environmentally friendly and has a relatively inexpensive configuration.
    Type: Application
    Filed: June 26, 2020
    Publication date: November 19, 2020
    Inventors: Keisuke Ohtsuka, Mitsushi Itano, Daisuke Karube, Yuuki Yotsumoto, Kazuhiro Takahashi, Yuzo Kamatsu, Shun Ohkubo, Tatsuya Takakuwa, Tetsushi Tsuda