Patents by Inventor Mitsui Koga

Mitsui Koga 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).

  • Patent number: 8486529
    Abstract: There is provided fine metal carbide particles which do not require pulverization of an initial material, a reaction intermediate and a product that causes the contamination with metallic impurities, which can promote a carbonization reaction uniformly at a lower temperature than in the past, and which can be manufactured at a low cost; and a method of manufacturing the same. The fine metal carbide particles are prepared by heat-treating, in a nonoxidizing atmosphere or a vacuum atmosphere, a solid obtained by drying an aqueous metal complex solution containing a water-soluble metal compound, and a low-molecular-weight water-soluble organic compound having one or more functional group(s) selected from the group consisting of amino group, hydroxyl group and carboxyl group, and having at least one of oxygen and nitrogen as heteroatom(s).
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: July 16, 2013
    Assignees: Fukuoka Prefecture, Nippon Tungsten Co., Ltd.
    Inventors: Yoko Taniguchi, Akihisa Makino, Kunitaka Fujiyoshi, Masashi Arimura, Shuji Ueno, Mitsui Koga
  • Publication number: 20110268969
    Abstract: There is provided fine metal carbide particles which do not require pulverization of an initial material, a reaction intermediate and a product that causes the contamination with metallic impurities, which can promote a carbonization reaction uniformly at a lower temperature than in the past, and which can be manufactured at a low cost; and a method of manufacturing the same. The fine metal carbide particles are prepared by heat-treating, in a nonoxidizing atmosphere or a vacuum atmosphere, a solid obtained by drying an aqueous metal complex solution containing a water-soluble metal compound, and a low-molecular-weight water-soluble organic compound having one or more functional group(s) selected from the group consisting of amino group, hydroxyl group and carboxyl group, and having at least one of oxygen and nitrogen as heteroatom(s).
    Type: Application
    Filed: January 6, 2010
    Publication date: November 3, 2011
    Inventors: Yoko Taniguchi, Akihisa Makino, Kunitaka Fujiyoshi, Masashi Arimura, Shuji Ueno, Mitsui Koga