Patents by Inventor Katsumi Hiratsuka

Katsumi Hiratsuka 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).

  • Dielectric barrier excimer lamp and ultraviolet light beam irradiating apparatus with the lamp
    Patent number: 6379024
    Abstract: Disclosed is a dielectric barrier excimer lamp which is easy to handle, less expensive and improved in ultraviolet light beam irradiation efficiency to electric power and ultraviolet light beam irradiation efficiency to a work.
    Type: Grant
    Filed: November 24, 2000
    Date of Patent: April 30, 2002
    Assignee: Hoya-Schott Corporation
    Inventors: Yasuo Kogure, Norio Kobayashi, Katsumi Hiratsuka, Satoru Amano