Patents by Inventor Tohoru Toshimitsu

Tohoru Toshimitsu 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).

  • Apparatus for cooling a steel strip in a continuous annealing line
    Patent number: 4330112
    Abstract: Method and apparatus for cooling a steel strip in a continuous annealing line, which has a first cooling step in which the steel strip immediately after an overageing treatment is cooled from the overageing temperature to a temperature in the range of from about 95.degree. C. to 60.degree. C., a temperature which prevents a surface oxidation but allows self-drying of the strip, in a protective atmosphere using a liquid coolant; and a second cooling step in which the steel strip is cooled to a temperature suitable for a subsequent temper rolling using liquid coolant at a temperature no higher than 40.degree. C.
    Type: Grant
    Filed: December 27, 1979
    Date of Patent: May 18, 1982
    Assignees: Nippon Steel Corporation, Nittetsu Plant Designing Corporation
    Inventors: Tohoru Toshimitsu, Norichika Nagira, Kenji Ueda
  • Method for temper rolling of a thin-gauge steel strip
    Patent number: 3947294
    Abstract: A method for temper rolling of a thin-gauge steel strip comprising applying mechanical working to the steel strip under dry condition and then rolling the steel strip with lubricant between the rolling roll and the steel sheet.
    Type: Grant
    Filed: February 6, 1975
    Date of Patent: March 30, 1976
    Assignee: Nippon Steel Corporation
    Inventors: Takashi Asamura, Shigeki Sawai, Keisuke Sakamoto, Hajime Ikeda, Tohoru Toshimitsu