Patents by Inventor Yoshiharu Iwashita

Yoshiharu Iwashita 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).

  • Apparatus for monitoring burden distribution in furnace
    Patent number: 4914948
    Abstract: A burden distribution monitoring apparatus, according to the present invention, includes a hollow cylindrical sonde having an inner end radially movable within the internal space of a furnace, such as a shaft furnace. The sonde carries a burden layer depth sensor and/or a burden grain distribution sensor for radially shifting working ends of the sensors. With the foregoing construction, burden depth and/or grading of the burden can be monitored in a plurality of radial points in the furnace.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: April 10, 1990
    Assignee: Kawasaki Steel Corp.
    Inventors: Shigemi Murakawa, Seiji Taguchi, Makoto Nomura, Ryoji Takabe, Yoshiharu Iwashita, Masahiro Ishii
  • Apparatus for monitoring burden distribution in furnace
    Patent number: 4697453
    Abstract: A burden distribution monitoring apparatus, according to the present invention, includes a hollow cylindrical sonde having an inner end radially movable within the internal space of a furnace, such as a shaft furnace. The sonde carries a burden layer depth sensor and/or a burden grain distribution sensor for radially shifting working ends of the sensors. With the foregoing construction, burden depth and/or grading of the burden can be monitored in a plurality of radial points in the furnace.
    Type: Grant
    Filed: July 2, 1985
    Date of Patent: October 6, 1987
    Assignee: Kawasaki Steel Corp.
    Inventors: Shigemi Murakawa, Seiji Taguchi, Makoto Nomura, Ryoji Takabe, Yoshiharu Iwashita, Masahiro Ishii