Patents by Inventor Teruo Iura

Teruo Iura 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: 5181970
    Abstract: According to the present invention, a stainless steel thin strip and sheet having a superior surface gloss and high rusting resistance is produced by heating a continuous cast slab of ferritic or martensitic stainless steel containing 10 to 35% by weight of Cr at a temperature of 1100.degree. to 1300.degree. C. selected according to the Cr content in a combustion atmosphere having an oxygen concentration lower than 7% while adjusting the furnace staying time from preheating to extrusion to within 260 minutes, carrying out hot rolling while adjusting the rolling-finish temperature to a level higher than 900.degree. C., carrying out mechanical descaling by adding a grinding and descaling agent, such as iron sand, having a maximum particle size smaller than 400 .mu.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: January 26, 1993
    Assignee: Nippon Steel Corporation
    Inventors: Masanori Ueda, Masamitsu Tsuchinaga, Teruo Iura, Shigeru Fujiwara