Patents by Inventor Akimitsu Isihara

Akimitsu Isihara 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 method for producing the same
    Patent number: 9748580
    Abstract: Provided is an oxygen reduction catalyst having a high oxygen reduction performance. An oxygen reduction catalyst according to the present embodiment includes a transition metal oxide to which an oxygen defect is introduced, and a layer that is provided on the transition metal oxide and that contains an electron conductive substance. A method for producing an oxygen reduction catalyst according to the present embodiment includes heating a transition metal carbonitride as a starting material in an oxygen-containing mixed gas. In addition, a method for producing an oxygen reduction catalyst according to the present embodiment includes heating a transition-metal phthalocyanine and a carbon fiber powder as starting materials in an oxygen-containing mixed gas.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: August 29, 2017
    Assignee: Yokohama National University
    Inventors: Ken-ichiro Ota, Akimitsu Isihara, Shigenori Mitsushima, Koichi Matsuzawa, Keisuke Ukita, Hideto Imai, Masashi Matsumoto, Takashi Miyazaki
  • OXYGEN REDUCTION CATALYST AND METHOD FOR PRODUCING THE SAME
    Publication number: 20140011102
    Abstract: Provided is an oxygen reduction catalyst having a high oxygen reduction performance. An oxygen reduction catalyst according to the present embodiment includes a transition metal oxide to which an oxygen defect is introduced, and a layer that is provided on the transition metal oxide and that contains an electron conductive substance. A method for producing an oxygen reduction catalyst according to the present embodiment includes heating a transition metal carbonitride as a starting material in an oxygen-containing mixed gas. In addition, a method for producing an oxygen reduction catalyst according to the present embodiment includes heating a transition-metal phthalocyanine and a carbon fiber powder as starting materials in an oxygen-containing mixed gas.
    Type: Application
    Filed: March 21, 2012
    Publication date: January 9, 2014
    Applicant: YOKOHAMA NATIONAL UNIVERSITY
    Inventors: Ken-ichiro Ota, Akimitsu Isihara, Shigenori Mitsushima, Koichi Matsuzawa, Keisuke Ukita, Hideto Imai, Masashi Matsumoto, Takashi Miyazaki