Patents by Inventor Yoshinori YAMATO

Yoshinori YAMATO 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
    Publication number: 20200406241
    Abstract: An object of the invention is to provide an oxygen reduction catalyst composed of a titanium oxynitride having high oxygen reduction capacity. The oxygen reduction catalyst of the invention is a titanium oxynitride that has a nitrogen element content of 0.1 to 2.0 mass %, has a crystal structure of rutile titanium dioxide in a powder X-ray diffraction measurement, and has a signal intensity ratio N—Ti—N/O—Ti—N in an X-ray photoelectron spectroscopic analysis of in the range of 0.01 to 0.50. Further, the oxygen reduction catalyst of the invention is a titanium oxynitride that includes titanium oxide particles, has a crystal structure of rutile titanium dioxide, and has an amorphous layer in a surface layer of the titanium oxide particles.
    Type: Application
    Filed: December 22, 2017
    Publication date: December 31, 2020
    Applicants: SHOWA DENKO K.K., NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY
    Inventors: Kunchan LEE, Yoshinori YAMATO, Kenichiro OTA, Akimitsu ISHIHARA
  • Oxygen reduction catalyst
    Patent number: 10658676
    Abstract: An object of the invention is to provide an oxygen reduction catalyst composed of a titanium oxynitride having high oxygen reduction capacity. The oxygen reduction catalyst of the invention is a titanium oxynitride that has a nitrogen element content of 8.0 to 15 mass %, has a crystal structure of anatase titanium dioxide in a powder X-ray diffraction measurement, and has a signal intensity ratio N—Ti—N/O—Ti—N in an X-ray photoelectron spectroscopic analysis of in the range of 0.35 to 0.70.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: May 19, 2020
    Assignees: SHOWA DENKO K.K., NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY
    Inventors: Kunchan Lee, Yoshinori Yamato, Kenichiro Ota, Akimitsu Ishihara
  • OXYGEN REDUCTION CATALYST
    Publication number: 20190386319
    Abstract: An object of the invention is to provide an oxygen reduction catalyst composed of a titanium oxynitride having high oxygen reduction capacity. The oxygen reduction catalyst of the invention is a titanium oxynitride that has a nitrogen element content of 8.0 to 15 mass %, has a crystal structure of anatase titanium dioxide in a powder X-ray diffraction measurement, and has a signal intensity ratio N—Ti—N/O—Ti—N in an X-ray photoelectron spectroscopic analysis of in the range of 0.35 to 0.70.
    Type: Application
    Filed: December 22, 2017
    Publication date: December 19, 2019
    Applicants: SHOWA DENKO K.K., NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY
    Inventors: Kunchan LEE, Yoshinori YAMATO, Kenichiro OTA, Akimitsu ISHIHARA