Patents by Inventor Kentaro Kosugi

Kentaro Kosugi 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).

  • Transition metal acetylide compound, nano-powder and method for producing a transition metal acetylide compound
    Patent number: 7025945
    Abstract: An anhydrous chloride with a formula of MCl2 (M=Fe, Co or Ni) is dissolved into an anhydrous acetonitrile solvent to form a chloride-acetonitrile solution. Then, calcium carbide minute powders are added and dispersed in the chloride-acetonitrile solution at a molar quantity equal to or smaller by 1–30 mol % than the molar quantity of the anhydrous chloride to form a reactive solution. Then, the reactive solution is heated at a predetermined temperature to chemically react the anhydrous chloride with the calcium carbide minute powders in the reactive solution to form a transition metal acetylide compound having an M-C2-M bond, a tetragonal structure, and a formula of MC2 (herein, M=Fe, Co or Ni).
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: April 11, 2006
    Assignee: Inter-University Research Institute Corporation National Institutes of Natural Sciences
    Inventors: Nobuyuki Nishi, Kentaro Kosugi
  • Method for producing a carbon layer-covering transition metallic nano-structure, method for producing a carbon layer-covering transition metallic nano-structure pattern, carbon layer-covering transition metallic nano-structure, and carbon layer-covering transition metallic nano-structure pattern
    Publication number: 20050170181
    Abstract: An anhydrous chloride with a formula of MCl2 (M=Fe, Co or Ni) is dissolved into an anhydrous acetonitrile solvent to form a chloride-acetonitrile solution. Then, calcium carbide minute powders are added and dispersed in the chloride-acetonitrile solution to form a reactive solution. Then, the reactive solution is thermally treated (first thermal treatment) to form a nano-powder made of a transition metal acetylide compound having an M-C2-M bond, a tetragonal structure, and a formula of MC2 (herein, M=Fe, Co or Ni). Then, the nano-powder is thermally treated (second thermal treatment) again at a temperature higher than the temperature in the first thermal treatment to form a carbon layer-covering transition metallic nano-structure wherein a metallic core made of the transition metal M is covered with a carbon layer.
    Type: Application
    Filed: September 20, 2004
    Publication date: August 4, 2005
    Applicant: Inter-University Research Institute Corporation National Institutes of Natural Sciences
    Inventors: Nobuyuki Nishi, Kentaro Kosugi
  • Transition metal acetylide compound, nano-powder and method for producing a transition metal acetylide compound
    Publication number: 20050171370
    Abstract: An anhydrous chloride with a formula of MCl2 (M?Fe, Co or Ni) is dissolved into an anhydrous acetonitrile solvent to form a chloride-acetonitrile solution. Then, calcium carbide minute powders are added and dispersed in the chloride-acetonitrile solution at a molar quantity equal to or smaller by 1-30 mol % than the molar quantity of the anhydrous chloride to form a reactive solution. Then, the reactive solution is heated at a predetermined temperature to chemically react the anhydrous chloride with the calcium carbide minute powders in the reactive solution to form a transition metal acetylide compound having an M—C2—M bond, a tetragonal structure, and a formula of MC2 (herein, M?Fe, Co or Ni).
    Type: Application
    Filed: September 20, 2004
    Publication date: August 4, 2005
    Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCE
    Inventors: Nobuyuki Nishi, Kentaro Kosugi