Patents by Inventor Junya SAKAGUCHI

Junya SAKAGUCHI 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).

  • Oxygen reduction catalyst and use thereof
    Patent number: 9660272
    Abstract: An oxygen reduction catalyst which includes composite particles including a portion including an inorganic metal compound and a portion containing carbon. The composite particles include a metal element M1, carbon, and oxygen as constituent elements; the amount of carbon atoms is 1 to 10 mol, and the amount of oxygen atoms is 1 to 3 mol, assuming that the total amount of atoms in the metal element M1 is 1 mol; a G-band and a D-band are present in a Raman spectrum, and a V/G ratio defined in an expression described below is 0.10 to 0.35: V/G ratio=(minimum value of spectral intensity in region V which is a region between G-band and D-band)/(peak intensity in G-band).
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: May 23, 2017
    Assignee: SHOWA DENKO K.K.
    Inventors: Yuji Ito, Junya Sakaguchi, Takuya Imai, Ryuji Monden, Masayuki Yoshimura
  • OXYGEN REDUCTION CATALYST AND USE THEREOF
    Publication number: 20160149225
    Abstract: An oxygen reduction catalyst which includes composite particles including a portion including an inorganic metal compound and a portion containing carbon. The composite particles include a metal element M1, carbon, and oxygen as constituent elements; the amount of carbon atoms is 1 to 10 mol, and the amount of oxygen atoms is 1 to 3 mol, assuming that the total amount of atoms in the metal element M1 is 1 mol; a G-band and a D-band are present in a Raman spectrum, and a V/G ratio defined in an expression described below is 0.10 to 0.35: V/G ratio=(minimum value of spectral intensity in region V which is a region between G-band and D-band)/(peak intensity in G-band).
    Type: Application
    Filed: July 8, 2014
    Publication date: May 26, 2016
    Applicant: SHOW DENKO K.K.
    Inventors: Yuji ITO, Junya SAKAGUCHI, Takuya IMAI, Ryuji MONDEN, Masayuki YOSHIMURA