Patents by Inventor Hiroki Fukumura

Hiroki Fukumura 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).

  • Slag-supplying container for use in electric furnace for reduction processing of steel-making slag
    Patent number: 9534266
    Abstract: This slag-supplying container of an electric furnace for reduction processing of steel-making slag includes: a container body that causes hot steel-making slag to flow to the electric furnace; a slag discharging portion connected with an electric-furnace-side slag-supplying port; a slag receiving portion that receives the hot steel-making slag supplied; a lid that opens and closes the slag receiving portion; an exhausting portion that discharges exhaust gas from the electric furnace; and, a tilting unit that tilts the container body to adjust the amount of inflow of the hot steel-making slag to the electric-furnace-side slag-supplying port.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: January 3, 2017
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Toshiya Harada, Takashi Arai, Hiroki Fukumura
  • Reduction processing apparatus for steel-making slag and reduction processing system for steel-making slag
    Patent number: 9238846
    Abstract: This reduction processing apparatus for a steel-making slag that continuously performs reduction processing to a hot steel-making slag by using an electric furnace includes: a slag-supplying container that charges the hot steel-making slag into the electric furnace; an electrode that is provided at the electric furnace and heats a molten slag layer on a molten iron produced by reducing the hot steel-making slag; an auxiliary-raw-material supplying unit that supplies an auxiliary-raw-material including a reducing agent to the molten slag layer; and a tilting unit that tilts the slag-supplying container and adjusts a charging amount of the hot steel-making slag to the electric furnace.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: January 19, 2016
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Toshiya Harada, Takashi Arai, Hiroki Fukumura
  • REDUCTION PROCESSING APPARATUS FOR STEEL-MAKING SLAG AND REDUCTION PROCESSING SYSTEM FOR STEEL-MAKING SLAG
    Publication number: 20140291901
    Abstract: This reduction processing apparatus for a steel-making slag that continuously performs reduction processing to a hot steel-making slag by using an electric furnace includes: a slag-supplying container that charges the hot steel-making slag into the electric furnace; an electrode that is provided at the electric furnace and heats a molten slag layer on a molten iron produced by reducing the hot steel-making slag; an auxiliary-raw-material supplying unit that supplies an auxiliary-raw-material including a reducing agent to the molten slag layer; and a tilting unit that tilts the slag-supplying container and adjusts a charging amount of the hot steel-making slag to the electric furnace.
    Type: Application
    Filed: June 27, 2013
    Publication date: October 2, 2014
    Inventors: Toshiya Harada, Takashi Arai, Hiroki Fukumura
  • SLAG-SUPPLYING CONTAINER FOR USE IN ELECTRIC FURNACE FOR REDUCTION PROCESSING OF STEEL-MAKING SLAG
    Publication number: 20140247856
    Abstract: This slag-supplying container of an electric furnace for reduction processing of steel-making slag includes: a container body that causes hot steel-making slag to flow to the electric furnace; a slag discharging portion connected with an electric-furnace-side slag-supplying port; a slag receiving portion that receives the hot steel-making slag supplied; a lid that opens and closes the slag receiving portion; an exhausting portion that discharges exhaust gas from the electric furnace; and, a tilting unit that tilts the container body to adjust the amount of inflow of the hot steel-making slag to the electric-furnace-side slag-supplying port.
    Type: Application
    Filed: June 27, 2013
    Publication date: September 4, 2014
    Applicant: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Toshiya Harada, Takashi Arai, Hiroki Fukumura