Patents by Inventor Manabu Kasuu

Manabu Kasuu 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).

  • Submerged entry nozzle for use in continuous casting
    Patent number: 6279790
    Abstract: This invention relates to a submerged entry nozzle for use in a continuous casting process, which includes a main body portion 11 formed by an AG refractory material; an internal hole portion 12 made of a graphite-less refractory material which contains 90 wt % or more of a spinel, with a total content of other components being 10 wt % or less; portions 13 surrounding the discharge openings, which are formed by a graphite-containing refractory material containing 5 to 35 wt % of a graphite, 65 wt % or more of a spinel (MgO—Al2O3), with a total content of other components being 10 wt % or less; and a powder line portion 14 formed by a ZrO2—C refractory material. The present submerged entry nozzle is suitable for use in casting various types of steel such as high concentration oxygen-containing steel, high concentration Mn-containing steel, Ca-treated steel, and stainless steel.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: August 28, 2001
    Assignee: Shinagawa Refractories Co., Ltd.
    Inventors: Osamu Nomura, Shigeki Uchida, Wei Lin, Manabu Kasuu