Patents by Inventor Koichiro Osozawa

Koichiro Osozawa 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).

  • Ni-based alloy excellent in intergranular corrosion resistance, stress corrosion cracking resistance and hot workability
    Patent number: 4626408
    Abstract: An alloy prepared by reducing the sulfur content of ASTM UNS N06600 (Trademark Inconel Alloy 600) to an extremely small value and adding specified amounts of Nb and N, and an alloy prepared by reducing the oxygen content of Inconel Alloy 600 and adding specified amounts of Nb, N, B and Mg show a mechanical strength equivalent or superior to that of Inconel Alloy 600 and excellent hot workability, and further has intergranular corrosion resistance and integranular stress corrosion cracking resistance which are far more excellent than those of Inconel Alloy 600.
    Type: Grant
    Filed: September 20, 1984
    Date of Patent: December 2, 1986
    Assignees: Nippon Yakin Kogyo Kabushiki Kaisha, Babock-Hitachi Kabushiki Kaisha
    Inventors: Koichiro Osozawa, Rikio Nemoto, Yoshito Fujiwara, Tomoaki Okazaki, Yasuhiro Miura, Kiyoshi Yamauchi