Patents by Inventor Hidemi Shigetoyo

Hidemi Shigetoyo 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).

  • Electromagnetic levitation type continuous metal casting apparatus
    Patent number: 5341867
    Abstract: An electromagnetic levitation type continuous metal casting apparatus includes a molten metal storing furnace for holding and storing a molten metal, a casting vessel for upwardly receiving and holding the molten metal in the form of an upwardly moving molten metal column, a displacer block for controlling supply of molten metal from the storing furnace to the casting vessel cooling means unified with the casting vessel and disposed around the outer periphery of the casting vessel for cooling and solidifying the upwardly moving molten metal column, alternating electromagnetic levitation and containment field generation means surrounding the casting vessel and cooling means disposed around the outer periphery thereof for generating an alternating electromagnetic field for electromagnetically levitating and containing the upwardly moving molten metal column while it is in the casting vessel, a molten metal supply path for supplying the molten metal to be cast from an inlet relatively high upon the side wall of
    Type: Grant
    Filed: August 25, 1993
    Date of Patent: August 30, 1994
    Assignee: Showa Electric Wire & Cable Co., Ltd.
    Inventors: Masahiko Yamada, Yuji Harada, Hidemi Shigetoyo
  • Electromagnetic levitation type continuous metal casting
    Patent number: 5244034
    Abstract: An electromagnetic levitation type continuous metal casting apparatus is disclosed, which comprises a molten metal storing furnace for holding and storing a molten metal, a casting vessel for upwardly receiving and holding the molten metal in the form of an upwardly moving molten metal column, cooling means unified with the casting vessel and disposed around the outer periphery of the casting vessel for cooling and solidifying the upwardly moving molten metal column alternating electromagnetic levitation and containment field generation means unified with the casting vessel and disposed around the outer periphery thereof for generating an alternating electromagnetic levitation and containment field, the alternating electromagnetic field electro-magnetically levitation and containment the upwardly moving molten metal column while it is in the casting vessel, a tube shaped molten metal supply path for supplying the molten metal to be cast from the molten metal storing furnace to the casting vessel, and high fre
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: September 14, 1993
    Assignee: Showa Electric Wire & Cable Co., Ltd.
    Inventors: Masahiko Yamada, Yuji Harada, Hidemi Shigetoyo