Patents by Inventor Kunihiko Takahata

Kunihiko Takahata 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).

  • Earth Leakage Breaker
    Patent number: 6882257
    Abstract: Malfunction of an earth leakage breaker due to a lightning surge is prevented, and when a lightning arrester is short-circuited and damaged by a high-level lightning surge, a power supply short circuit is prevented. A contact 41, an overcurrent detector section 43, and a zero phase current transformer 44 are disposed in order from a power supply side to a load side, and a lightning arrester 3 is connected between the overcurrent detector section 43 and the zero phase current transformer 44.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: April 19, 2005
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Toshin Denki Kabushiki Kaisha
    Inventors: Takashi Anamura, Setsuo Hosogai, Kunihiko Takahata
  • Ground fault interrupter
    Publication number: 20030099073
    Abstract: Malfunction of an earth leakage breaker due to a lightning surge is prevented, and when a lightning arrester is short-circuited and damaged by a high-level lightning surge, a power supply short circuit is prevented.
    Type: Application
    Filed: December 24, 2002
    Publication date: May 29, 2003
    Inventors: Takashi Anamura, Setsuo Hosogai, Kunihiko Takahata