Patents by Inventor Toru Yasuta

Toru Yasuta 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).

  • Apparatus for uniformly heating molten glass
    Patent number: 4049899
    Abstract: Molten glass is uniformly heated between a plurality of pairs of electrodes which receive electric current from a current source which includes a like plurality of transformers and a source of electric power, the primary windings of the transformers being connected in series to the power source and each secondary transformer winding being connected to an associated pair of electrodes. The transformers feed and control the electric current to equalize the current regardless of electrical resistance variations in the material due to rising temperatures.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: September 20, 1977
    Assignee: Nippon Electric Glass Company, Limited
    Inventors: Hiroshi Shimizu, Jun Nishidai, Toru Yasuta