Patents by Inventor Hiroyuki Sugimachi

Hiroyuki Sugimachi 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).

  • Hoist apparatus
    Patent number: 6427982
    Abstract: The hoist apparatus includes a chain for raising or lowering an object; an upper hook member; a hoist body member suspended by the upper hook member; a lower hook member for hoisting the object mounted to the hoist body member at a bottom end thereof for hoisting the object; a pneumatic motor disposed in the hoist body member for winding the chain up or down; and a control unit for driving or suspending the hoist body member; wherein a distance of the chain between the control unit and the lower hook member is set to be variable.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: August 6, 2002
    Assignee: Toku Pneumatic Tool Mfg. Co., Ltd.
    Inventor: Hiroyuki Sugimachi