Patents Assigned to Ryozo Iijima
  • 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