Patents by Inventor Tomohiro Yotabunn

Tomohiro Yotabunn 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).

  • Brick body for rotary nozzle
    Patent number: 7322496
    Abstract: In a rotary nozzle brick body formed into a substantially egg-like shape in it's plan view, the present invention secures a contact area of a nozzle portion and improves a configuration factor which considerably affecting the durability of the body. A rotary nozzle brick body is characterized in that the external shape in plan view is comprised of first circular portions (G), second circular portions (H), third circular portions (K), and tangent lines connecting the first circular portions and third circular portions so that a substantially elliptical shape is formed by increasing the circular portion and shortening the tangent lines, instead of a substantially egg-like shape having long tangent lines.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: January 29, 2008
    Assignees: JFE Refractories Corporation, Nippon Rotary Nozzle Co., Ltd., Tokyo Yogyo Kabushiki Kaisha, JFE Mechanical Co., Ltd.
    Inventors: Tomohiro Yotabunn, Tsuyoshi Mizuno, Hideto Takasugi, Tsuneo Kondo, Hisao Inubushi
  • Brick body for rotary nozzle
    Publication number: 20060273499
    Abstract: In a rotary nozzle brick body formed into a substantially egg-like shape in its plan view, the present invention secures a contact area of a nozzle portion and improves a configuration factor which considerably affecting the durability of the body. A rotary nozzle brick body is characterized in that the external shape in plan view is comprised of first circular portions (G), second circular portions (H), third circular portions (K) and tangent lines connecting the first circular portions and the third circular portions so that a substantially elliptical shape is formed by increasing the circular portions and shortening the tangent lines, instead of a substantially egg-like shape having long tangent lines.
    Type: Application
    Filed: June 25, 2004
    Publication date: December 7, 2006
    Inventors: Tomohiro Yotabunn, Tsuyoshi Mizuno, Hideto Takasugi, Tsuneo Kondo, Hisao Inubushi