Patents by Inventor Toshiyuki Onchi

Toshiyuki Onchi 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).

  • CIRCUIT BREAKER
    Publication number: 20130284702
    Abstract: A circuit breaker includes a fixed contact having a fixed contact point; a movable contact having a movable contact point contacting with the fixed contact point; and an arc extinguishing device housed in a main body case. In the arc extinguishing device, a plurality of magnetic grids, each having a pair of grid leg portions, is disposed in layer form, and an arc generated between the fixed contact point and the movable contact point at a time of an opening operation is drawn into the magnetic grids and extinguished. A magnetic flux is generated between the pairs of grid leg portions configuring the arc extinguishing device in a direction perpendicular to the arc generated between the fixed contact point and the movable contact point, and permanent magnets and a permanent magnet holding member are disposed therein.
    Type: Application
    Filed: February 8, 2012
    Publication date: October 31, 2013
    Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Yoshinobu Hamada, Yoshiyuki Kimishima, Kazunori Yonemitsu, Toshiyuki Onchi, Houjyun Yamauchi
  • MOLDED CASE CIRCUIT BREAKER
    Publication number: 20020175785
    Abstract: A molded case circuit breaker includes a switching mechanism and a current-interrupting section. The current-interrupting section is composed of an insulated case, fixed contact shoes arranged diagonally opposite to each other, a bridging rotary contact shoe, a contact shoe holder, and arc extinguishing devices. The fixed contact shoes are composed of linear contact shoe conductors to reduce a height of the section, and the fixed contact shoes are arranged vertically in parallel and opposite each other so that the fixed contact shoes and the rotary contact shoe form a Z-shaped conducting path.
    Type: Application
    Filed: May 21, 2002
    Publication date: November 28, 2002
    Inventors: Tadashi Asada, Naoshi Uchida, Kazunori Yonemitsu, Masaru Isozaki, Toshiyuki Onchi
  • Molded case circuit breaker
    Patent number: 6480080
    Abstract: A molded case circuit breaker includes a switching mechanism and a current-interrupting section. The current-interrupting section is composed of an insulated case, fixed contact shoes arranged diagonally opposite to each other, a bridging rotary contact shoe, a contact shoe holder, and arc extinguishing devices. The fixed contact shoes are composed of linear contact shoe conductors to reduce a height of the section, and the fixed contact shoes are arranged vertically in parallel and opposite each other so that the fixed contact shoes and the rotary contact shoe form a Z-shaped conducting path.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: November 12, 2002
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Tadashi Asada, Naoshi Uchida, Kazunori Yonemitsu, Masaru Isozaki, Toshiyuki Onchi