Patents by Inventor Eizo Sakuma

Eizo Sakuma 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).

  • Member for immersion in hot dip galvanizing bath and method for producing the same
    Patent number: 6284062
    Abstract: A member used in contact with a hot dip galvanizing bath, such as a sinker roll, a support roll or a bearing, is produced by nitriding stainless steel to form a nitride layer and a nitrogen-diffused layer on the surface thereof. The member used in contact with a hot dip galvanizing bath is formed on its surface with the nitride layer by nitriding it in a salt bath containing a cyanide, a cyanate, a carbonate and the like or by heat-treating it in an atmosphere containing ammonium or nitrogen.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: September 4, 2001
    Assignee: Taiyo Steel Co., Ltd.
    Inventors: Takeo Nagashima, Eizo Sakuma, Katsuaki Takano