Patents by Inventor Tatunori Ikeda

Tatunori Ikeda 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).

  • Remote-controlled circuit breaker
    Patent number: 5079529
    Abstract: A remote-controlled circuit breaker has an operation mechanism unit (300), for selecting one of an off state and a remote-controllable state of the circuit breaker, and a movable contact (11, 12) which makes/breaks contact with a fixed contact (9.16) in connection with a motion of an electromagnetic unit (200) only in the remote-controllable state; and the movable contact breaks contact with the fixed contact irrespective of the motion of the electromagnetic unit at the time when an overcurrent tripping unit (400) is operated by a fault. A control lever (63) for moving the movable contact into and out of contact with the fixed contact has an elastic element (63A) which strengthens the engagement of a latch mechanism in the overcurrent tripping unit during an off-time of the electromagnetic unit.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: January 7, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hirotoshi Ohishi, Tatunori Ikeda, Manabu Sogabe
  • Remote-controlled circuit breaker
    Patent number: 5041805
    Abstract: A remote-controlled circuit breaker has an operation mechanism unit, for selected one of an off state and a remote-controllable state of the circuit breaker, and a movable contact which makes/breaks contact with a fixed contact in connection with a motion of an electromagnetic unit only in the remote-controllable state; and the movable contact breaks contact with the fixed contact irrespective of the motion of the electromagnetic unit at the time when an overcurrent tripping unit is operated by a fault. A push rods acts in conjunction with a transmission lever to either provide an indication of the state of contact connection or to actuate tripping. An indication mechanism is also disclosed.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: August 20, 1991
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hirotoshi Ohishi, Tatunori Ikeda, Manabu Sogabe
  • Remote-controlled circuit breaker
    Patent number: 4975665
    Abstract: A remote-controlled circuit breaker has an operation mechanism unit (300), for selecting one of an off state and a remote-controllable state of the circuit breaker, and a compact electromagnetic unit (200) and a movable contact (11, 12) which makes/breaks contact with a fixed contact in connection with a motion of the electromagnetic unit only in the remote-controllable state; and the movable contact breaks contact with the fixed contact irrespective of the motion of the electromagnetic unit at the time when an overcurrent tripping unit (400) is operated by a fault.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: December 4, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hirotoshi Ohishi, Tatunori Ikeda, Manabu Sogabe
  • Remote-controlled circuit breaker
    Patent number: 4947145
    Abstract: A remote-controlled circuit breaker has an operation mechanism unit, for selecting one of an off state and a remote-controllable state of the circuit breaker, and a movable contact which makes/breaks contact with a fixed contact in connection with a motion of an electromagnetic unit only in the remote-controllable state, in which the electromagnetic unit is automatically disconnected from actuating power when an operation handle is in the OFF position.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: August 7, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hirotoshi Ohishi, Tatunori Ikeda, Manabu Sogabe