Patents by Inventor Susumu Ujiie

Susumu Ujiie 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).

  • Engagement device for an electromagnetic spring-wound clutch
    Patent number: 4819778
    Abstract: An electromagnetic spring-wound clutch is disclosed. An armature plate member to which one end of a coil wound spring is connected is flexibly connected to a guide member rotatably supported on a cover plate by a plurality of leaf springs. The cover plate has a bent portion at its axial terminal end and the guide member is closely fitted against the bent portion to maintained its axial position thereon. Thus, the armature plate is fitted against an axial end of the bent portion due to the recoil strength of the coil wound spring.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: April 11, 1989
    Assignee: Sanden Corporation
    Inventors: Isamu Shirai, Susumu Ujiie, Takeshi Koitabashi