Patents by Inventor Satoshi Nagano

Satoshi Nagano 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: 4052659
    Abstract: An overload protection system for a power inverter utilizes a first circuit for monitoring current to the load from the power inverter to detect an overload and a control circuit to shut off the power inverter when an overload condition is detected. At the same time a monitoring current inverter is turned on to deliver current to the load at a very low power level. A second circuit monitors current to the load from the monitoring current inverter to hold the power inverter off through the control circuit unitl the overload condition is cleared so that the control circuit may be deactivated in order for the power inverter to be restored after the monitoring current inverter is turned off completely.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: October 4, 1977
    Inventors: James C. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Fletcher, Satoshi Nagano
  • 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