Patents by Inventor Kunning ZHU

Kunning ZHU 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 fuel cell electrode catalyst
    Patent number: 9947940
    Abstract: A method is provided for producing a platinum alloy-containing fuel cell electrode catalyst with high activity which is suited for its industrial mass-production. The method for producing a fuel cell electrode catalyst includes a step of preparing a dispersion in which particles of a fuel cell electrode catalyst precursor including a platinum alloy is dispersed in an electrolyte solution, and a step of alternately subjecting the dispersion to bubbling with an oxidizing gas and to bubbling with an inert gas or a reducing gas.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: April 17, 2018
    Assignee: SHOWA DENKO K.K.
    Inventors: Kunning Zhu, Kunchan Lee
  • METHOD FOR PRODUCING FUEL CELL ELECTRODE CATALYST
    Publication number: 20160359172
    Abstract: A method is provided for producing a platinum alloy-containing fuel cell electrode catalyst with high activity which is suited for its industrial mass-production. The method for producing a fuel cell electrode catalyst includes a step of preparing a dispersion in which particles of a fuel cell electrode catalyst precursor including a platinum alloy is dispersed in an electrolyte solution, and a step of alternately subjecting the dispersion to bubbling with an oxidizing gas and to bubbling with an inert gas or a reducing gas.
    Type: Application
    Filed: August 26, 2014
    Publication date: December 8, 2016
    Applicant: SHOWA DENKO K.K.
    Inventors: Kunning ZHU, Kunchan LEE
  • CATALYST PARTICLE, SUPPORT-TYPE CATALYST PARTICLE, AND USES THEREOF
    Publication number: 20160099473
    Abstract: A catalyst particle including platinum and palladium, and having a proportion of palladium in the surface of the particle, measured by X-ray photoelectron spectroscopy (XPS), of 45 to 55 atom % with respect to a total amount of platinum and palladium of 100 atom %. Also disclosed is a support-type catalyst particle, a fuel cell catalyst layer, an electrode including the fuel cell catalyst layer and a membrane electrode assembly including the electrode.
    Type: Application
    Filed: May 27, 2014
    Publication date: April 7, 2016
    Applicant: SHOWA DENKO K.K.
    Inventors: Kunning ZHU, Tomoya KITAGAWA, Kunchan LEE, Masabumi KUSAKA, Toshinori MORIYA