Patents by Inventor Ichiroh Ohgaki

Ichiroh Ohgaki 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).

  • Hot steel cutting apparatus
    Patent number: 4318439
    Abstract: A cutting apparatus lights the surface of a moving hot steel material with lamps, locates any flaw with a video camera or the like, scarfs the surface of the steel material adjacent the flaw with a scarfing torch, measures the depth of the flaw with an eddy current detecting probe or the like, estimates accurately the loss of length due to conditioning size and depth of the flaw with a computer, and cuts the steel material in a predetermined length plus the accurately estimated length corresponding to the loss of length due to conditioning.
    Type: Grant
    Filed: August 2, 1979
    Date of Patent: March 9, 1982
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Tatsuo Hiroshima, Takahide Sakamoto, Kenichi Matsui, Ichiroh Ohgaki