Patents by Inventor Tohru Futagami

Tohru Futagami 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).

  • Glass quenching apparatus
    Patent number: 6412309
    Abstract: A glass quenching apparatus for quenching a glass sheet heated to a predetermined temperature, includes a first nozzle group for jetting blower air onto opposite surfaces of the glass sheet, and a second nozzle group for jetting compressor air onto at least one of the opposite surfaces of the glass sheet. The first nozzle group is comprised of stationary nozzles, and the second nozzle group is comprised of movable nozzles which are capable of moving parallel to a plane of the glass sheet. The glass quenching apparatus of the foregoing construction is able to quench the glass sheet uniformly over the entire area thereof without undue wastage of quenching air.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: July 2, 2002
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Masuhide Kajii, Norihiro Fujioka, Tohru Futagami