Patents by Inventor Akio Shigeno

Akio Shigeno 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).

  • UV-sterilizer for a dental implement such as a reamer and drill
    Patent number: 4772795
    Abstract: A UV-sterilizer for a dental implement such as a reamer or drill permitting rapid and perfect irradiation and easy operation, comprising a sterilizer housing, a holder tube made of a transparent quartz glass tube and a plurality of UV-sterilizer lamps, both the holder tube and UV-sterilizer lamps being disposed within the sterilizer housing, wherein the sterilizer housing is provided with reflector plates and a gate mechanism substantially similar to a photographic diaphragm mechanism on an open end of the holder tube.
    Type: Grant
    Filed: March 20, 1987
    Date of Patent: September 20, 1988
    Assignee: Kyowairika Co., Ltd.
    Inventors: Masatoshi Sakurai, Akio Shigeno, Yoshihiko Noguchi