Patents by Inventor Kimihiro NAKAMA

Kimihiro NAKAMA 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).

  • Phosphorus compound-containing exhaust gas purifying catalyst
    Patent number: 11110436
    Abstract: A phosphorus compound-containing exhaust gas purifying catalyst includes: a refractory three-dimensional structure extending from a gas inflow side end surface to a gas outflow side end surface, the refractory three-dimensional structure having cell walls that define and form multiple gas flow paths, the gas flow paths running from the gas inflow side end surface to the gas outflow side end surface; a lower catalyst layer that contains Pd and is formed continuously from the gas inflow side end surface on the cell walls; a gas inflow side upper catalyst layer that contains Rh and is located as an uppermost layer on the cell walls; and a gas outflow side upper catalyst layer that contains Rh and is located as an uppermost layer on the cell walls.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: September 7, 2021
    Assignee: UMICORE SHOKUBAI JAPAN CO., LTD.
    Inventors: Hirotaka Kuno, Masashi Nakashima, Kimihiro Nakama
  • PHOSPHORUS COMPOUND-CONTAINING EXHAUST GAS PURIFYING CATALYST
    Publication number: 20200384446
    Abstract: A phosphorus compound-containing exhaust gas purifying catalyst includes: a refractory three-dimensional structure extending from a gas inflow side end surface to a gas outflow side end surface, the refractory three-dimensional structure having cell walls that define and form multiple gas flow paths, the gas flow paths running from the gas inflow side end surface to the gas outflow side end surface; a lower catalyst layer that contains Pd and is formed continuously from the gas inflow side end surface on the cell walls; a gas inflow side upper catalyst layer that contains Rh and is located as an uppermost layer on the cell walls; and a gas outflow side upper catalyst layer that contains Rh and is located as an uppermost layer on the cell walls.
    Type: Application
    Filed: December 26, 2018
    Publication date: December 10, 2020
    Applicant: UMICORE SHOKUBAI JAPAN CO., LTD.
    Inventors: Hirotaka KUNO, Masashi NAKASHIMA, Kimihiro NAKAMA