Patents by Inventor Yasuji Kataura

Yasuji Kataura 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).

  • Composite calcium clads for treating molten iron
    Patent number: 4698095
    Abstract: Composite calcium materials to be used for welding or refining steel, nickel, nickel alloy or iron alloy, which are produced by cladding a sheath of aluminum, iron or alloys thereof and a core consisting of(1) a mixture or an alloy of calcium or an alloy thereof with at least one element of aluminum and rare earth metals,(2) a mixture of calcium or an alloy thereof with a flux of silicates, oxides or halides of alkaline earth metals, or(3) a mixture consisting of the above described mixture or alloy (1) with the flux as described in the above item (2).
    Type: Grant
    Filed: May 29, 1986
    Date of Patent: October 6, 1987
    Assignee: Tohei Ototani
    Inventors: Tohei Ototani, Yasuji Kataura
  • Composite calcium clads for deoxidation and desulfurization from molten steels
    Patent number: 4671820
    Abstract: Composite calcium materials to be used for welding or refining steel, nickel, nickel alloy or iron alloy, which are produced by cladding a sheath of aluminum, iron or alloys thereof and a core consisting of(1) a mixture or an alloy of calcium or an alloy thereof with at least one element of aluminum and rare earth metals,(2) a mixture of calcium or an alloy thereof with a flux of silicates, oxides or halides of alkaline earth metals, or(3) a mixture consisting of the above described mixture or alloy (1) with the flux as described in the above item (2).
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: June 9, 1987
    Assignee: Tohei Ototani
    Inventors: Tohei Ototani, Yasuji Kataura
  • Method of treating molten ferrous material with composite rods containing Ca
    Patent number: 4097268
    Abstract: Composite calcium materials to be used for welding or refining steel, nickel, nickel alloy or iron alloy, which are produced by cladding a sheath of aluminum, iron or alloys thereof and a core consisting of1. a mixture or an alloy of calcium or an alloy thereof with at least one element of aluminum and rare earth metals,2. a mixture of calcium or an alloy thereof with a flux of silicates, oxides or halides of alkaline earth metals, or3. a mixture consisting of the above described mixture or alloy (1) with the flux as described in the above item (2).
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: June 27, 1978
    Assignee: Tohei Ototani
    Inventors: Tohei Ototani, Yasuji Kataura
  • Composite calcium clad material for treating molten metals
    Patent number: 4035892
    Abstract: Composite calcium materials to be used for welding or refining steel, nickel, nickel alloy or iron alloy, which are produced by cladding a sheath of aluminum, iron or alloys thereof and a core consisting of1. a mixture or an alloy of calcium or an alloy thereof with at least one element of aluminum and rare earth metals,2. a mixture of calcium or an alloy thereof with a flux of silicates, oxides or halides of alkaline earth metals, or3. a mixture consisting of the above described mixture or alloy (1) with the flux as described in the above item (2).
    Type: Grant
    Filed: July 23, 1975
    Date of Patent: July 19, 1977
    Assignee: Tohei Ototani
    Inventors: Tohei Ototani, Yasuji Kataura