Patents by Inventor Tosimichi Haraguchi

Tosimichi Haraguchi 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).

  • Patent number: 4314219
    Abstract: A permanent magnet-type lifting device for lifting heavy steel articles or the like in which a magnetic assembly of ferrite magnets stacked to form a single unit between pole pieces of a magnetically permeable material is rotatably disposed between plural magnetic member magnetically isolated from one another. In a preferred embodiment, plural rotated assemblies are provided and are mechanically linked through a common rotation mechanism. The magnetic member have an attracting surface and an inclined portion extending toward the attracting portion.
    Type: Grant
    Filed: September 25, 1979
    Date of Patent: February 2, 1982
    Assignee: Hitachi Metals, Ltd.
    Inventor: Tosimichi Haraguchi