Patents by Inventor Mituhiro Furuse

Mituhiro Furuse 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 monitoring two electric quantities by combining three consecutive samples of each quantity
    Patent number: 4075697
    Abstract: Apparatus for monitoring two sinusoidal electric quantities of a common period, comprises two similarly timed samplers, an arithmetic unit for combining, in accordance with a preselected relation, three consecutive samples of each electric quantity so as to produce an output signal which is independent of time and phase relations between the sampling pulses and the respective quantities. The output signal may be determined solely by peak values of the respective quantities, phase difference between the electric quantities, and timing period. The apparatus further comprises a discriminator circuit having a reference level and responsive to the output signal for producing a signal for use in monitoring the electric quantities.
    Type: Grant
    Filed: October 21, 1976
    Date of Patent: February 21, 1978
    Assignees: Tokyo Denryoku Kabushiki Kaisha, Kabushiki Kaisha Meidensha
    Inventors: Tomoyoshi Ochiai, Takeshi Hayashi, Mituhiro Furuse
  • Apparatus for monitoring two electric quantities by combining three consecutive samples of each quantity
    Patent number: 4006348
    Abstract: Apparatus for monitoring two sinusoidal electric quantities of a common period, comprises two similarly timed samplers, an arithmetic unit for combining, in accordance with a preselected relation, three consecutive samples of each electric quantity so as to produce an output signal which is independent of time and phase relations between the sampling pulses and the respective quantities. The output signal may be determined solely by peak values of the respective quantities, phase difference between the electric quantities, and timing period. The apparatus further comprises a discriminator circuit having a reference level and responsive to the output signal for producing a signal for use in monitoring the electric quantities.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: February 1, 1977
    Assignees: Tokyo Denryoku Kabushiki Kaisha, Kabushiki Kaisha Meidensha
    Inventors: Tomoyoshi Ochiai, Takeshi Hayashi, Mituhiro Furuse