Patents by Inventor Minoru Yuzuki

Minoru Yuzuki 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).

  • Method for manufacturing welded clad steel tube
    Patent number: 5855699
    Abstract: In a method of the present invention for manufacturing a welded clad steel tube, an alloy including a corrosion-resisting or heat-resisting alloy is overlaid on a raw steel tube to manufacture a cold steel tube. Then, a cold or warm working is subjected to the clad steel tube. The clad steel tube is subjected to a heat treatment at a temperature exceeding a recrystallization temperature of the alloy.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: January 5, 1999
    Assignees: Daido Tokushuko Kabushiki Kaisha, Nippon Kokan Co., Ltd.
    Inventors: Motoaki Oyama, Minoru Yuzuki, Kazuto Terai, Yuko Takeuchi, Hitoshi Hayakawa