Patents by Inventor Thoru Satho

Thoru Satho 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).

  • Decontaminating solid surfaces
    Patent number: 4806277
    Abstract: The present invention relates to a decontamination method in which an object to be decontaminated is immersed in a liquid, bubbles are produced by blowing vapor in the liquid, and these bubbles are caused to burst on a solid surface which constitutes the object to be decontaminated which is brought into contact with the liquid, whereby substances adhered to the solid surface are separated and removed by the impulsive force produced when the bubbles burst. Also provided is a method of decontaminating solid surfaces which exhibits a high degree of efficiency and a high level of safety.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: February 21, 1989
    Assignees: Hitachi Ltd., Hitachi Engineering Co., Ltd.
    Inventors: Mikio Sakurai, Tsutomu Hayashi, Masayuki Izumi, Hiroshi Sasaki, Thoru Satho, Kazuo Owada