Patents by Inventor Itaru Imabayashi

Itaru Imabayashi 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: 4316753
    Abstract: A method for producing a low alloy hot rolled steel strip or sheet comprising hot rolling a steel slab at a finishing temperature not higher than the Ar.sub.3 transformation temperature plus 60.degree. C. and cooling and coiling the hot rolled strip at a temperature not higher than 500.degree. C. The steel slab contains not more than 0.20% carbon, 0.50 to 2.50% manganese and 0.05 to 1.0% chromium and optionally contains not more than 1.0% silicon, the balance being iron and unavoidable impurities. The resultant strip or sheet has a high tensile strength of not less than 40 kg/mm.sup.2, a low yeild ratio of not more than 70% and an excellent total elongation of not less than 25%.
    Type: Grant
    Filed: March 21, 1979
    Date of Patent: February 23, 1982
    Assignee: Nippon Steel Corporation
    Inventors: Kunishige Kaneko, Mamoru Tashiro, Nagayasu Takemoto, Itaru Imabayashi, Takashi Furukawa