Patents by Inventor Kenji Ashikari

Kenji Ashikari 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).

  • Hydrogen-producing catalyst and exhaust gas purifying catalyst using same
    Patent number: 11446638
    Abstract: An object of the present invention is to provide means for improving the hydrogen generation properties of a hydrogen-producing catalyst. A hydrogen-producing catalyst according to one aspect of the present invention comprises Rh and a composite containing Al, Ce, and Zr. When a ratio of the number of Al atoms to the number of Ce atoms (Al/Ce) in the composite measured by X-ray fluorescence (XRF) analysis is R1 and a ratio of the number of Al atoms to the number of Ce atoms (Al/Ce) in the composite measured by an X-ray photoelectron spectroscopy (XPS) method is R2, a value of R2/R1 is greater than 2.25 and less than 5.92.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: September 20, 2022
    Assignee: UMICORE SHOKUBAI JAPAN CO., LTD
    Inventors: Kenji Ashikari, Yuji Ogino, Yusuke Haneda
  • Exhaust gas purification catalyst and exhaust gas purification method using the same
    Patent number: 11143072
    Abstract: In order to provide an exhaust gas purification catalyst capable of purifying hydrocarbons, carbon monoxide, and nitrogen oxides in exhaust gas at low temperatures, the exhaust gas purification catalyst according to the present invention includes: a region (2) containing palladium on a three-dimensional structure (1), and a first region (3) and a second region (4) provided on the region (2) in order from an inflow side of exhaust gas to an outflow side of exhaust gas. The concentration of neodymium contained in the first region (3) is higher than the concentration of neodymium contained in the second region (4).
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: October 12, 2021
    Assignee: UMICORE SHOKUBAI JAPAN CO., LTD.
    Inventors: Hirotaka Kuno, Masashi Nakashima, Kenji Ashikari, Yuji Ogino, Kazuyoshi Komata, Shigekazu Minami
  • HYDROGEN-PRODUCING CATALYST AND EXHAUST GAS PURIFYING CATALYST USING SAME
    Publication number: 20200330964
    Abstract: An object of the present invention is to provide means for improving the hydrogen generation properties of a hydrogen-producing catalyst. A hydrogen-producing catalyst according to one aspect of the present invention comprises Rh and a composite containing Al, Ce, and Zr. When a ratio of the number of Al atoms to the number of Ce atoms (Al/Ce) in the composite measured by X-ray fluorescence (XRF) analysis is RI and a ratio of the number of Al atoms to the number of Ce atoms (Al/Ce,) in the composite measured by an Xray photoelectron spectroscopy (XPS) method is R2, a value of R2-R1 is greater than 2.25 and less than 5.92.
    Type: Application
    Filed: December 13, 2018
    Publication date: October 22, 2020
    Applicant: UMICORE SHOKUBAI JAPAN CO., LTD.
    Inventors: Kenji ASHIKARI, Yuji OGINO, Yusuke HANEDA
  • Exhaust gas purifying catalyst and method for purifying exhaust gas
    Patent number: 10653999
    Abstract: The present invention provides an exhaust gas purifying catalyst which can maintain high catalyst activity even after the exhaust gas purifying catalyst is exposed to an exhaust gas at a high temperature for a long period of time. The exhaust gas purifying catalyst contains a Pd—Pr complex and PdO, and the Pd—Pr complex is represented by PraPdbOc, where a=1 to 3, b=1 to 10, and c=1 to 6.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: May 19, 2020
    Assignee: UMICORE SHOKUBAI JAPAN CO., LTD.
    Inventors: Kenji Ashikari, Masanori Ikeda, Shigekazu Minami, Masashi Nakashima, Hideki Goto
  • EXHAUST GAS PURIFICATION CATALYST AND EXHAUST GAS PURIFICATION METHOD USING THE SAME
    Publication number: 20200049041
    Abstract: In order to provide an exhaust gas purification catalyst capable of purifying hydrocarbons, carbon monoxide, and nitrogen oxides in exhaust gas at low temperatures, the exhaust gas purification catalyst according to the present invention includes: a region (2) containing palladium on a three-dimensional structure (1), and a first region (3) and a second region (4) provided on the region (2) in order from an inflow side of exhaust gas to an outflow side of exhaust gas. The concentration of neodymium contained in the first region (3) is higher than the concentration of neodymium contained in the second region (4).
    Type: Application
    Filed: April 26, 2018
    Publication date: February 13, 2020
    Applicant: UMICORE SHOKUBAI JAPAN CO., LTD.
    Inventors: Hirotaka KUNO, Masashi NAKASHIMA, Kenji ASHIKARI, Yuji OGINO, Kazuyoshi KOMATA, Shigekazu MINAMI
  • EXHAUST GAS PURIFYING CATALYST AND METHOD FOR PURIFYING EXHAUST GAS
    Publication number: 20200047121
    Abstract: The present invention provides an exhaust gas purifying catalyst which can maintain high catalyst activity even after the exhaust gas purifying catalyst is exposed to an exhaust gas at a high temperature for a long period of time. The exhaust gas purifying catalyst contains a Pd—Pr complex and PdO, and the Pd—Pr complex is represented by PraPdbOc, where a=1 to 3, b=1 to 10, and c=1 to 6.
    Type: Application
    Filed: October 18, 2017
    Publication date: February 13, 2020
    Applicant: Umicore Shokubai Japan Co., Ltd.
    Inventors: Kenji Ashikari, Masanori IKEDA, Shigekazu MINAMI, Masashi NAKASHIMA, Hideki GOTO