Patents by Inventor Iwaki Yoshiyuki

Iwaki Yoshiyuki 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).

  • Charging system for a car
    Patent number: 4588939
    Abstract: A surge voltage produced by intermittent operation of a voltage regulating device 5 is suppressed by providing a second power source 10 for exciting an alternating current generator.
    Type: Grant
    Filed: January 27, 1984
    Date of Patent: May 13, 1986
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Iwaki Yoshiyuki, Matsumoto Akio, Yokota Mitsuyoshi
  • Alternating current generator for a car
    Patent number: 4581572
    Abstract: Excitation of a field coil 2 is carried out by a separated power source 9 placed independent of a battery 8 to increase the output of a generator. A solar battery 10, a piezoelectric element 13 or a thermoelectric converting element 19 is used as the separately exciting means so that the output of the generator is increased for an exciting current effected by the separately exciting means.
    Type: Grant
    Filed: January 27, 1984
    Date of Patent: April 8, 1986
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Iwaki Yoshiyuki, Matsumoto Akio, Yokota Mitsuyoshi
  • Alternating current generator system for a car
    Patent number: 4560916
    Abstract: A field coil (2) is excited by a solar battery (9) attached on a car to use an alternating current generator as of a separately excited type and a battery (8) is supplementarily charged by the solar battery (9).
    Type: Grant
    Filed: January 27, 1984
    Date of Patent: December 24, 1985
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Iwaki Yoshiyuki, Matsumoto Akio, Yokota Mitsuyoshi