Patents by Inventor Michitaka Sakaida

Michitaka Sakaida 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).

  • Coke oven wall surface evaluation apparatus, coke oven wall surface repair supporting apparatus, coke oven wall surface evaluation method, coke oven wall surface repair supporting method and computer program
    Patent number: 8311777
    Abstract: An oven wall three-dimensional profile data (701) representing concave and convex amounts on all over oven walls (14R, 14L) at a right side and left side of a coking chamber (11) is generated by using image signals obtained by a wall surface observation apparatus (200). A resistance index “k” in which a resistance received by pushed coke (15) resulting from a rising gradient existing on the oven wall (14) is indexed is asked by using the oven wall three-dimensional profile data (701). It can be verified that there is a correlation between this resistance index “k” and a pushing load. Accordingly, it is possible to quantitatively evaluate a state of the oven wall (14) affecting on the pushing load.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: November 13, 2012
    Assignee: Nippon Steel Corporation
    Inventors: Masato Sugiura, Michitaka Sakaida, Koichi Fukuda, Tomoyuki Nakagawa, Akihide Sano, Yoshifumi Morizane, Keisuke Irie
  • Method of production of blast furnace coke
    Patent number: 7846301
    Abstract: A method of production of blast furnace coke comprising drying mixed coal, then, or simultaneously with the drying, classifying it to fine-grained coal and coarse-grained coal, then adding to the fine-grained coal at a temperature of 80 to 350° C. a caking additive comprised of one or more of a heavy distillate of tar, soft pitch, and petroleum pitch, agglomerating it by hot pressing, then mixing the clumps of coal and the coarse-grained coal and charging and carbonizing the mixture in a coke oven.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: December 7, 2010
    Assignee: Nippon Steel Corporation
    Inventors: Kenji Katou, Isao Sugiyama, Yoshiaki Nakashima, Hiroshi Uematsu, Takashi Arima, Masahiko Yokomizo, Michitaka Sakaida
  • COKE OVEN WALL SURFACE EVALUATION APPARATUS, COKE OVEN WALL SURFACE REPAIR SUPPORTING APPARATUS, COKE OVEN WALL SURFACE EVALUATION METHOD, COKE OVEN WALL SURFACE REPAIR SUPPORTING METHOD AND COMPUTER PROGRAM
    Publication number: 20100095752
    Abstract: An oven wall three-dimensional profile data (701) representing concave and convex amounts on all over oven walls (14R, 14L) at a right side and left side of a coking chamber (11) is generated by using image signals obtained by a wall surface observation apparatus (200). A resistance index “k” in which a resistance received by pushed coke (15) resulting from a rising gradient existing on the oven wall (14) is indexed is asked by using the oven wall three-dimensional profile data (701). It can be verified that there is a correlation between this resistance index “k” and a pushing load. Accordingly, it is possible to quantitatively evaluate a state of the oven wall (14) affecting on the pushing load.
    Type: Application
    Filed: February 19, 2008
    Publication date: April 22, 2010
    Inventors: Masato Sugiura, Michitaka Sakaida, Koichi Fukuda, Tomoyuki Nakagawa, Akihide Sano, Yoshifumi Morizane, Keisuke Irie
  • Method of Production of Blast Furnace Coke
    Publication number: 20080190753
    Abstract: A method of production of blast furnace coke comprising drying mixed coal, then, or simultaneously with the drying, classifying it to fine-grained coal and coarse-grained coal, then adding to the fine-grained coal at a temperature of 80 to 350° C. a caking additive comprised of one or more of a heavy distillate of tar, soft pitch, and petroleum pitch, agglomerating it by hot pressing, then mixing the clumps of coal and the coarse-grained coal and charging and carbonizing the mixture in a coke oven.
    Type: Application
    Filed: May 12, 2006
    Publication date: August 14, 2008
    Inventors: Kenji Katou, Isao Sugiyama, Yoshiaki Nakashima, Hiroshi Uematsu, Takashi Arima, Masahiko Yokomizo, Michitaka Sakaida