Patents by Inventor Takao Shintani

Takao Shintani 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).

  • Patent number: 4027190
    Abstract: In a metal halide lamp including a luminous sealed tube which is equipped with a pair of discharge electrodes and has an inonizable inert gas and mercury sealed therein, the luminous sealed tube further includes, in addition to tin halide (exclusive of tin fluoride), calcium halide (exclusive of calcium fluoride) or strontium halide (exclusive of strontium fluoride) or their mixture. The metal halide lamp shows a high color rendering property.
    Type: Grant
    Filed: September 2, 1976
    Date of Patent: May 31, 1977
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventors: Takao Shintani, Satoshi Nagano, Toshihiko Ishigami, Hiroki Sasaki