Patents by Inventor Ryozo Iijima

Ryozo Iijima 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).

  • Mother blank for producing starting sheets used in electrolytic non-ferrous metal production
    Patent number: 4040937
    Abstract: A mother blank for producing starting sheets used in electrolytic non-ferrous metal production, is composed of a laminar electrolytic deposition member comprising a planar metal member constituting the central layer of laminar deposition member, and electrically conductive polybutene resin layers constituting two surface layers of the laminar deposition member, and a frame-like member made of an electrically nonconductive polybutene resin and attached integrally to the periphery of the laminar deposition member.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: August 9, 1977
    Assignees: Ryozo Iijima, Onahama Seiren Kabushiki Kaisha
    Inventors: Ryozo Iijima, Yukio Matsubara, Ginichi Yamaguchi, Masatoshi Fukushima