Patents by Inventor Hideki Hachiya

Hideki Hachiya 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).

  • Current limiting breaking device using electromagnetic repulsion coil
    Patent number: 6097246
    Abstract: The present invention includes a first switch 4a, a second switch 4b and a capacitor 4d. The first switch 4a normally in a closed state is connected in series between a power source 1 and load, and opens when an accident builds up. The second switch 4b normally in an open state closes almost simultaneously with the opening of the first switch 4a. The capacity 4d normally charged by an arbitrary voltage has predetermined electrically capacity. The serial connected circuit consists of the second switch 4b and capacitor 4d, it is connected in parallel to the first switch 4a.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: August 1, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuyuki Tsurunaga, Jun Matsuzaki, Hiroshi Ohashi, Hideki Hachiya