Patents by Inventor Wataru YOSHIMUNE

Wataru YOSHIMUNE 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).

  • Method for producing perovskite metal oxynitride
    Patent number: 9776866
    Abstract: The method for producing a perovskite metal oxynitride of the present invention, comprises: a hydrogenation step (A) of forming a perovskite oxyhydride in which an oxide ion (O2?) and a hydride ion (H?) coexist, by reducing a perovskite oxide through a reductive oxygen elimination reaction using a metal hydride; and a nitriding step (B) of forming a perovskite oxynitride containing a nitride ion (N3?) by heat-treating the perovskite oxyhydride in the presence of a nitrogen source substance at a temperature of 300° C. or higher and 600° C. or lower and exchanging the hydride ion (H?) for a nitride ion (N3?).
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: October 3, 2017
    Assignee: Japan Science and Technology Agency
    Inventors: Hiroshi Kageyama, Yoji Kobayashi, Kohei Aizu, Wataru Yoshimune, Hideo Hosono
  • METHOD FOR PRODUCING PEROVSKITE METAL OXYNITRIDE
    Publication number: 20170073229
    Abstract: The method for producing a perovskite metal oxynitride of the present invention, comprises: a hydrogenation step (A) of forming a perovskite oxyhydride in which an oxide ion (O2?) and a hydride ion (H?) coexist, by reducing a perovskite oxide through a reductive oxygen elimination reaction using a metal hydride; and a nitriding step (B) of forming a perovskite oxynitride containing a nitride ion (N3?) by heat-treating the perovskite oxyhydride in the presence of a nitrogen source substance at a temperature of 300° C. or higher and 600° C. or lower and exchanging the hydride ion (H?) for a nitride ion (N3?).
    Type: Application
    Filed: January 9, 2015
    Publication date: March 16, 2017
    Inventors: Hiroshi KAGEYAMA, Yoji KOBAYASHI, Kohei AIZU, Wataru YOSHIMUNE, Hideo HOSONO