Patents by Inventor Fumihiro Morishita

Fumihiro Morishita 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).

  • Thermal overload relay
    Patent number: 6459355
    Abstract: A thermal overload relay includes an inversion operation mechanism that is driven by a releasing lever to open or close a contact. The inversion operation mechanism includes a movable plate supported at one end so as to be inverted, and a tension spring for driving the movable plate for inversion. The releasing lever presses a middle of a wire of the tension spring to drive the movable plate for inversion. A projection is formed in the middle of the wire of the tension spring to contact with the releasing lever. Thus, a stable inversion operation can be made regardless of the positioning of an adjustment dial.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: October 1, 2002
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Yukinari Furuhata, Toshikatsu Ohgami, Fumihiro Morishita, Naoki Fukaya, Teruhisa Okutsu