Patents by Inventor Takeya Tohge

Takeya Tohge 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).

  • Patent number: 5259443
    Abstract: This invention relates to a direct production process of a length of continuous thin two-phase stainless steel strip having excellent superplasticity and surface properties by casting molten two-phase stainless steel directly on either a single roller or a pair of rollers, so that the molten metal is quenched, and a small amount of austenite appears in ferrite matrix.
    Type: Grant
    Filed: February 24, 1992
    Date of Patent: November 9, 1993
    Assignee: Nippon Yakin Kogyo Co., Ltd.
    Inventors: Kuniaki Osada, Takeya Tohge, Masato Noda
  • Patent number: 4790368
    Abstract: A wide thin metal sheet having a smooth surface may be manufactured directly from molten metal. A lower end of a nozzle installed vertically at the bottom of a molten metal vessel is held in contact with an inclined plate made of a refractory material, molten metal is discharged in a fan-shape from a notch formed in the peripheral wall of the nozzle end, the discharged molten metal being rendered into a constant shape laminar flow having a uniform flow rate distribution on the inclined surface as it flows down the inclined plate. The constant shape laminar flow is supplied to a molten metal pool between a pair of rollers of internally water-cooled type without any disturbance on the surface and in the inside. The metal solidified in the neighborhood of a portion of the gap between the two rollers is discharged from an open-at-the-bottom space defined between the two rollers.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: December 13, 1988
    Assignees: Nippon Yakin Kogyo Co. Ltd., Talako Kusakawa
    Inventors: Takaji Kusakawa, Kazuo Ebato, Takeya Tohge, Masato Noda, Yasuhide Kuroda
  • Patent number: 4512802
    Abstract: A computer implemented process for optimizing the decarburization of a predetermined mass of molten metal by controlling the amount of coolants, the charging time of coolants, the dilution ratio of injected oxygen to inert gas, the changing time of the dilution ratio and the amount of injected gases which includes: considering from a standpoint of kinetic theory the reaction in AOD vessel is composed of following three reactions, i.e., the reaction in the vicinity of tuyeres, the reaction taking place in the ascending process of bubbles and the reaction in the interface between metal and slag; establishing the mathematical Model I; establishing the mathematical Model II calculated capably in short time and kinetically from the result using the mathematical Model I, and from the vessel factor calculated from the data of an actual operation; and further utilizing the mathematical Model II as a controlling program in an actual operation.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: April 23, 1985
    Assignee: Nippon Yakin Kogyo Kabushiki Kaisha
    Inventor: Takeya Tohge