Patents by Inventor Kaoru Shinba

Kaoru Shinba 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: 6317339
    Abstract: A method of controlling an electric power supply apparatus with an electric converter circuit adapted to detect a phase difference between a waveform of a voltage across load connection terminals and a waveform of a reference voltage from time difference between zero cross points thereof and shift the phase of the reference voltage so that the phase difference is within a set range when it is decided that the phase difference is out of the set range whereby the phase of the output voltage across the load connection terminals is so controlled that it is coincident with that of an external voltage applied across the load connection terminals.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: November 13, 2001
    Assignee: Kokusan Denki Co., Ltd.
    Inventors: Mitsuyoshi Shimazaki, Masanori Nakagawa, Kaoru Shinba
  • Patent number: 6278622
    Abstract: A method of controlling an electric power source apparatus including an electric power converter circuit which converts an output of an electric power source into DC or AC output and load connector terminals across which is applied an output of said converter circuit, which includes the steps of detecting a waveform of the load voltage across the load connection terminals after the output of the electric power converter circuit is stopped when an overcurrent flows through the load connection terminals, of judging a cause due to which the overcurrent flows, and of controlling said converter circuit according to the result of the judgement, wherein the electric power converter circuit is kept stopped when it is judged that the overcurrent is caused by an increase in the load and the electric power converter is so controlled that the waveform of the voltage applied across the load connection terminals from the electric power converter circuit is consistent with the waveform of the voltage detected by the voltage
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: August 21, 2001
    Assignee: Kokusan Denki Co., Ltd.
    Inventors: Mitsuyoshi Shimazaki, Masanori Nakagawa, Kaoru Shinba, Yutaka Inaba