Patents by Inventor Hiroyoshi Shiromoto

Hiroyoshi Shiromoto 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).

  • Rope for traction
    Patent number: 5180636
    Abstract: A rope for traction of a double structure of a core member coated with a sheath member, in which said core member comprises a molecularly oriented shaped article of an ultrahigh molecular weight polyolefin, and said sheath member comprises a braid. The rope proposed herein is light in weight, floatable on water, easy to handle and excellent in safety to human bodies and weatherability.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: January 19, 1993
    Assignee: Mitsui Petrochemical Industries Ltd.
    Inventors: Hirofumi Harazoe, Hiroyoshi Shiromoto, Kazuo Yagi, Masahiro Kouya