Patents by Inventor Yoshikazu Seino

Yoshikazu Seino 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: 5799527
    Abstract: A method of producing a stainless steel produces steel sheets having excellent surface brightness. The method includes performing a cold rolling operation using a work roll having a Young's modulus between 25,000 to 70,000 kg/mm.sup.2 in one or more stands of a tandem mill having a plurality of stands. Preferably the work roll is composed of a tungsten carbide based hard metal alloy. The diameter of a work roll at a final stand of the tandem mill is equal to or smaller than a diameter of a work roll in the previous stand. It is preferable that the work roll is dimensioned to have a diameter between 150 mm to 400 mm. In addition, it is preferable that a cold rolling operation is achieved at a reduction between 25% to 60% reduction in the final stand of the tandem mill.
    Type: Grant
    Filed: July 24, 1995
    Date of Patent: September 1, 1998
    Assignee: Kawasaki Steel Corporation
    Inventors: Kazuhito Kenmochi, Osamu Sonobe, Eisuke Kawazumi, Yoshikazu Seino, Takashi Akazawa, Kazusito Okada
  • Patent number: 5061441
    Abstract: A steel from which rolls for a cold rolling mill are made and which gives to the rolls very excellent wear resistance in addition to thermal shock and spalling resistances and various mechanical characteristics is provided. Said steel comprises:C : 0.70 to 1.50 wt %Si: 0.15 to 1.00 wt %Mn: 0.15 to 1.50 wt %Cr: 2.50 to 10.00 wt %Mo: 1.00 wt % or lessV : 1.00 wt % or lessNi: 1.00 wt % or lessTi: 0.04 to 0.30 wt %with the balance being Fe and inevitable impurities.
    Type: Grant
    Filed: April 13, 1990
    Date of Patent: October 29, 1991
    Assignees: Kawasaki Steel Corporation, Kanto Special Steel Works, Ltd.
    Inventors: Ken'ichi Aoki, Yoshikazu Seino, Teruhiro Saito, Ken'ichi Tokoro