Patents by Inventor Yoshinori Tateishi

Yoshinori Tateishi 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).

  • Dispersion strengthened ferritic steel cladding tube for nuclear reactor and its production method
    Patent number: 4960562
    Abstract: A dispersion strengthened ferritic steel cladding tube for use in a nuclear reactor and having a double-layer structure is provided. The cladding tube comprises a tube body made of a dispersion strengthened ferritic steel having a ceramic dispersed therein and containing 8 to 13% by weight of chromium. The inner surface of the tube body is lined with a ferritic steel containing 18 to 30% by weight of chromium. The cladding tube has not only excellent compatibility with a mixed oxide fuel but also excellent high temperature strength and swelling resistance.A method of producing the cladding tube using powder metallurgy is also provided.
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: October 2, 1990
    Assignees: Doryokuro Kakunenryo Kaihatsu Jigyodan, Sumitomo Metal Industries, Ltd., Kobe Steel, Ltd.
    Inventors: Takanari Okuda, Shigeo Nomura, Itaru Shibahara, Yoshinori Tateishi, Susumu Hirano, Hiroshi Teranishi, Masayuki Fujiwara, Toshio Nishida