Patents by Inventor Yoshiaki Kagari

Yoshiaki Kagari 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).

  • Multipolar circuit breaker
    Patent number: 6509817
    Abstract: A multipolar circuit breaker of great breaking capacity prevents arc gas from blowing out from the side at the time of cutting off a short-circuit current. A stationary contact and a movable contact generating arcs when a short-circuit current is cut off, and an arc extinguisher extinguishing the arc are stored in an arc extinguisher casing. By forming the ceiling, the bottom and the sidewalls connecting the ceiling and the bottom of the arc extinguisher casing in continuity so that no gap is formed by an outward internal pressure, blow out of arc gas from the sidewall portion is suppressed.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: January 21, 2003
    Assignee: Terasaki Denki Sangyo Kabushiki Kaisha
    Inventors: Shozo Kaneko, Yukihiko Asao, Yoshiaki Kagari
  • Multipolar circuit breaker
    Publication number: 20020050892
    Abstract: A multipolar circuit breaker of great breaking capacity prevents arc gas from blowing out from the side at the time of cutting off a short-circuit current. A stationary contact and a movable contact generating arcs when a short-circuit current is cut off, and an arc extinguisher extinguishing the arc are stored in an arc extinguisher casing. By forming the ceiling, the bottom and the sidewalls connecting the ceiling and the bottom of the arc extinguisher casing in continuity so that no gap is formed by an outward internal pressure, blow out of arc gas from the sidewall portion is suppressed.
    Type: Application
    Filed: October 30, 2001
    Publication date: May 2, 2002
    Applicant: TERASAKI DENKI SANGYO KABUSHIKI KAISHA
    Inventors: Shozo Kaneko, Yukihiko Asao, Yoshiaki Kagari