Patents by Inventor Hiroaki Tokai

Hiroaki Tokai 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).

  • Ultraviolet radiation producing apparatus
    Patent number: 6787787
    Abstract: An ultraviolet illumination equipment including a receptacle with a window, a dielectric-barrier discharge lamp located within the receptacle for emitting ultraviolet radiation through the window, and a heater for heating the window to at least 100° C.
    Type: Grant
    Filed: May 16, 2000
    Date of Patent: September 7, 2004
    Assignee: Ushiodenki Kabushiki Kaisha
    Inventors: Nobuyuki Hishinuma, Hiroshi Sugawara, Fumitosho Takemoto, Hiroaki Tokai, Jun Murase