Patents by Inventor Taizo Ichida

Taizo Ichida 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).

  • Method and apparatus for detection of concentration of hydrogen peroxide vapor
    Patent number: 6189368
    Abstract: Real-time and accurate detection of the concentration of hydrogen peroxide vapor supplied into a treatment vessel is made possible by a method and apparatus that permits efficient and effective sterilization, disinfection, or the like with hydrogen peroxide vapor. The concentration of hydrogen peroxide vapor in a treatment vessel is detected by a semiconductor gas sensor in a treatment system where an object to be treated is brought into contact with hydrogen peroxide vapor in a treatment vessel with the pressure fixed at a constant level.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: February 20, 2001
    Assignee: Taiyo Toyo Sanso Co., Ltd.
    Inventors: Taizo Ichida, Shinichi Ando, Akihide Terao
  • Method for detecting the concentration of the hydrogen peroxide vapor and the apparatus therefor
    Patent number: 5608156
    Abstract: The disclosure where the hydrogen peroxide vapor 4a is supplied to a treatment vessel, and a subject 1 to be treated in the treatment vessel 2 is subjected to a sterilization treatment by contact with the hydrogen peroxide vapor 4a, the concentration of the hydrogen peroxide vapor 4a in the treatment vessel 2 is detected directly and accurately on a real-time basis by a semiconductor gas sensor 8.
    Type: Grant
    Filed: June 23, 1995
    Date of Patent: March 4, 1997
    Assignee: Taiyo Toyo Sanso Co., Ltd.
    Inventors: Shinichi Ando, Taizo Ichida