Patents by Inventor Kaoru Shiozawa

Kaoru Shiozawa 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 of and apparatus for welding metal bars
    Patent number: 4321448
    Abstract: A welding method in which two metal bars are disposed such that the opposing ends of these bars are placed in a welding mold with a predetermined welding gap preserved therebetween, and are jointed to each other by filling the space formed between the opposing ends of the bars and the inner surface of the welding mold with a molten welding metal. Also, disclosed is a welding apparatus having a welding gap setting device for placing the metal bars with a predetermined welding gap therebetween and an arc welder for jointing the bars by filling the welding gap with molten welding metal.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: March 23, 1982
    Assignees: Kajima Corporation, Mitsui Engineering & Shipbuilding Co., Ltd.
    Inventors: Kaoru Shiozawa, Tsunebumi Matsunaga