Patents by Inventor Yoshinori Toya

Yoshinori Toya 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).

  • Cross-flow fan and an air-conditioner using it
    Patent number: 6158954
    Abstract: A number of vanes 12 are disposed in a peripheral direction of a plurality of supporting disks disposed along a rotary shaft 14 at given intervals. Each vane 12 is disposed at an angular interval as determined by a logistic representation. Thereby the intensity and variations of noise levels at around 8N on the low-frequency side, as well as the noise level caused by rotary first-order sounds, can be reduced.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: December 12, 2000
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Noriyuki Nabeshima, Tomohito Takada, Michihiro Kurokawa, Tomohito Koizumi, Yoshinori Toya, Kiyoshi Koyama, Shigeya Ishigaki
  • Propeller fan
    Patent number: D419669
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: January 25, 2000
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Mikiyasu Shinshi, Harutaka Genno, Morinobu Iijima, Yoshinori Toya, Tsuyoshi Rakuma