Patents by Inventor Kanichi Kishikawa

Kanichi Kishikawa 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: 4503700
    Abstract: A rail is rolled from a hot-rolled bloom having a square or rectangular cross section by a method which is constituted by the steps of breakdown rolling, universal rolling, which is effected by causing the bloom to travel through a plurality of stands making only a single pass on each stand, base-wheel rolling, head-wheel rolling and edging. The bloom is broken down into substantially H-shaped beam blank whose cross section is symmetrical with respect to the center line of its web. In the base-wheel rolling, the flanges of the blank corresponding to the head and base of the rail are respectively rolled widthwise and thicknesswise in three or more passes using a pair of horizontal rolls and a vertical roll, respectively.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: March 12, 1985
    Assignee: Nippon Steel Corporation
    Inventors: Kanichi Kishikawa, Taneharu Nishino
  • Patent number: 4503699
    Abstract: The rail is rolled by the steps of breakdown rolling, reforming rolling, first and second universal rolling, head-wheel rolling and base-wheel rolling in that order. The reforming rolling is performed using a pair of horizontal rolls provided with a reforming pass and a head-wheel pass and a vertical roll adapted to reduce the base of the rail, with the paired horizontal rolls, together with said vertical roll, shifted and set in such a position where the reforming pass matches the pass line of the first universal rolling pass. The head-wheel rolling is performed using the same paired horizontal rolls and a vertical roll adapted to reduce the head of the rail, with the paired horizontal rolls, together with said vertical roll, shifted and set in such a position where the head-wheel pass matches the pass line of the second universal rolling pass.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: March 12, 1985
    Assignee: Nippon Steel Corporation
    Inventors: Kanichi Kishikawa, Taneharu Nishino, Seiichi Nagasoe
  • Patent number: 4334419
    Abstract: A method for rolling a steel section having flanges or flange-like portions from a steel bloom of rectangular cross section in a rolling mill having a train of roughing rolling stands for roughing, a universal rolling stand with a pair of opposing horizontal rolls and a pair of opposing vertical rolls, and a train of finishing rolling stands for finishing.
    Type: Grant
    Filed: March 23, 1979
    Date of Patent: June 15, 1982
    Assignee: Nippon Steel Corporation
    Inventors: Kanichi Kishikawa, Kazuo Watanabe, Hideki Tokita, Taneharu Nishino, Seiichi Nagasoe