Patents Assigned to Nippon Electrode Co., Ltd.
  • Publication number: 20220162073
    Abstract: A molding material for producing the carbon clusters using biomass as the main raw material, comprising the biomass and a binder as the derived raw material, wherein the molding material is graphitized, the electrical resistivity of the molding material is equal to or less than 100 ??m, the diffraction pattern of the molding material by powder X-ray diffraction method has one peak between 2?(? is the Bragg angle) of 26 to 27°, and the value of ? width divided by the base of the peak is equal to or less than 0.68. The method for producing the molding material for producing the carbon clusters according to any of claims 1 to 6, comprising following steps of: obtaining a molded precursor containing a calcined biomass and a binder; optionally, further baking the precursor; and graphitizing the precursor at a temperature of 2500° C. or higher.
    Type: Application
    Filed: March 16, 2020
    Publication date: May 26, 2022
    Applicants: Vitamin C60 Bioresearch Corporation, The Honjo Chemical Corporation, Nippon Electrode Co., Ltd
    Inventors: Masayuki ITO, Yuichi HAYASHI, Hirohisa HIKITA, Naoki MATSUMOTO
  • Patent number: 10967348
    Abstract: Provided are a heat treatment apparatus for carbonaceous grains and a method therefor allowing drifts and internal clogging in a direct energizing furnace to not occur, allowing heat treatment of the carbonaceous grains to be continued uniformly at high temperatures for a prolonged period of time, and allowing productivity and workability to be improved. A conductive tubular structure 14 is electrically connected to an upper part of a lower electrode 13 in a manner of surrounding an upper electrode 12. The rate of change between the specific electrical resistivity of grains when grains are lightly filled and the specific electrical resistivity of grains when the grains are tap filled is defined (1-tap filling/lightly filling)×100, and the rate of change is equal to less than 70%.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: April 6, 2021
    Assignee: NIPPON ELECTRODE CO., LTD.
    Inventors: Hironaga Suzuki, Yuichi Kaba, Shinjiro Toda
  • Publication number: 20180185805
    Abstract: Provided are a heat treatment apparatus for carbonaceous grains and a method therefor allowing drifts and internal clogging in a direct energizing furnace to not occur, allowing heat treatment of the carbonaceous grains to be continued uniformly at high temperatures for a prolonged period of time, and allowing productivity and workability to be improved. A conductive tubular structure 14 is electrically connected to an upper part of a lower electrode 13 in a manner of surrounding an upper electrode 12. The rate of change between the specific electrical resistivity of grains when grains are lightly filled and the specific electrical resistivity of grains when the grains are tap filled is defined (1-tap filling/lightly filling)×100, and the rate of change is equal to less than 70%.
    Type: Application
    Filed: May 10, 2016
    Publication date: July 5, 2018
    Applicant: NIPPON ELECTRODE CO., LTD.
    Inventors: Hironaga SUZUKI, Yuichi KABA, Shinjiro TODA
  • Patent number: 8889062
    Abstract: A carbonaceous refractory and a method of production is provided, which prevents a drop in the molten pig iron corrosion resistance, molten pig iron penetration resistance, and other properties of carbonaceous refractories required for blast furnace bottom refractories. The mechanical strength of the refractories is raised so as to suppress cracking due to thermal stress. The carbonaceous refractory comprises a carbonaceous material comprising one or more of calcined anthracite, calcined coke, natural graphite, or artificial graphite in 60 to 85 mass %, a refractory metal oxide in 5 to 15 mass %, metal silicon in 4 to 15 mass %, and carbon black in 2 to 10 mass %. An organic binder is added to refractory materials, which are kneaded, molded and fired in a nonoxidizing atmosphere.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: November 18, 2014
    Assignees: Nippon Steel & Sumitomo Metal Corporation, Nippon Electrode Co., Ltd.
    Inventors: Hiroyuki Inoue, Michio Nitta, Taijiro Matsui, Tsutomu Wakasa, Yoshiyuki Yamagami, Toru Mochida