Patents by Inventor Tamotsu Tokita

Tamotsu Tokita 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).

  • Magnetic switch for starter used in internal combustion engine
    Patent number: 6229416
    Abstract: In a magnetic switch for a starter, an impact force due to return force of a contact pressing coil spring 25 for a plate shaped movable contact 19 is received by a collar 18a formed integral with a movable non-magnetic shaft 18, and an insulative spring stopper member 22 having a cylindrical portion 22a is disposed beneath the contact pressing coil spring concentrically therewith in an overlapping manner along the movable non-magnetic shaft. A hollow cylindrical coil 14 is secured by a casing side plate 16 of a casing 15 and another side plate 17 having a tapered cylindrical protrusion 17a in axial and radial directions with respect to a magnetic core including the side plates 16, 17 and the casing 15.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: May 8, 2001
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Koohei Ebihara, Tamotsu Tokita