Patents by Inventor Heishi Maruyama

Heishi Maruyama 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).

  • TUNGSTEN OXIDE AND OXYGEN EVOLUTION REACTION CATALYST
    Publication number: 20230374678
    Abstract: An object of the present invention is to provide a compound with high catalytic activity that can be used as a catalyst for oxygen evolution reaction. Tungsten oxide represented by NixFe1-xWO4 (wherein 0<x<1). A catalyst for oxygen evolution reaction for use in an anodic electrode or a positive electrode, comprising the tungsten oxide. An electrolyzer comprising an anodic electrode chamber and a cathodic electrode chamber divided by an ion-permeable separating membrane, wherein an anodic electrode is arranged in the anodic electrode chamber and a cathodic electrode is arranged in the cathodic electrode chamber, and wherein the tungsten oxide represented by NixFe1-xWO4 (wherein 0<x<1) is supported on the anodic electrode as a catalyst.
    Type: Application
    Filed: October 8, 2021
    Publication date: November 23, 2023
    Inventors: Masaharu Nakayama, Airi Takeda, Heishi Maruyama, Masanobu Azuma