Patents by Inventor Noboru Miida

Noboru Miida 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).

  • Free-cutting graphitic steel
    Patent number: 4061494
    Abstract: A free cutting graphitic steel comprising:Si: from more than 1.5 to 2.3%Mn: 0.1 to 0.7%S: not more than 0.015%One or both Al and Ti: 0.015 to 0.1% in totalRare earth: 0.01 to 0.2% andSpheroidized graphite: 0.20 to 0.90% with the balance being iron and unavoidable impurities,Said spheroidized graphite being distributed at a ratio of more than particles 50/mm.sup.2.
    Type: Grant
    Filed: July 16, 1976
    Date of Patent: December 6, 1977
    Assignee: Nippon Steel Corporation
    Inventors: Takao Yokokawa, Shogo Kanazawa, Yasuo Otoguro, Nobukazu Suzuki, Sigeyuki Akase, Noboru Miida, Tadahisa Akazawa, Kazuya Kuroiwa