Patents by Inventor Masahiro Sakuraba

Masahiro Sakuraba 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).

  • Clad steel pipe
    Patent number: 6238806
    Abstract: A clad material of a clad steel pipe is disposed on at least one of an internal surface and external surface of a base material, the clad material having two lateral edges which are welded together to form the pipe. A thickness of the clad material at the two ends of the clad material in a lengthwise direction is predetermined at a first value, the first value which enables absorption of a discrepancy in thickness when connecting the clad steel pipe to another clad steel pipe; and wherein a thickness of the clad material at other parts other than the two ends is determined to be at a second value which is smaller than the first value.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: May 29, 2001
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Masahiro Sakuraba, Masahiko Taguchi, Yasunobu Saitoh