Patents by Inventor Yuzo Ohtakara

Yuzo Ohtakara 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).

  • Molybdenum base alloy having excellent high-temperature strength and a method of producing same
    Patent number: 4165982
    Abstract: A molybdenum base alloy containing a given amount of at least one of zirconium and hafnium, a given amount of carbon and not more than given amounts of oxygen and nitrogen has an excellent high-temperature strength. This alloy is produced by an electron beam melting process under high vacuum.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: August 28, 1979
    Assignee: Daido Tokushuko Kabushiki Kaisha
    Inventors: Fujiwara Tatsuo, Koshi Katoh, Yuzo Ohtakara, Takayoshi Shimizu