Patents by Inventor Mitsuhiro OKAZUMI

Mitsuhiro OKAZUMI 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).

  • USE OF CERIUM OXIDE FOR THE PREPARATION OF A LEAN NOX TRAP CATALYTIC COMPOSITION AND A METHOD OF TREATMENT OF AN EXHAUST GAS USING THE COMPOSITION
    Publication number: 20220118427
    Abstract: The present invention relates to the use of a resistant cerium oxide for the preparation of Lean NOx Trap catalytic composition. The invention also relates to such catalytic composition and to a method of treatment of an exhaust gas to decrease the NOx content using said catalytic composition.
    Type: Application
    Filed: December 19, 2019
    Publication date: April 21, 2022
    Inventors: Naotaka OHTAKE, Kaoru NISHIMURA, Toshihiro SASAKI, Mitsuhiro OKAZUMI
  • CERIUM OXIDE PARTICLES AND METHOD FOR PRODUCTION THEREOF
    Publication number: 20220055017
    Abstract: The present invention relates to cerium oxide particles that have excellent heat resistance under hydrothermal conditions at high temperature. The present invention also relates to a method for preparing such cerium oxide particles and to a catalytic composition comprising said cerium oxide.
    Type: Application
    Filed: December 19, 2019
    Publication date: February 24, 2022
    Inventors: Naotaka OHTAKE, Kaoru NISHIMURA, Toshihiro SASAKI, Mitsuhiro OKAZUMI
  • Cerium oxide particles and method for production thereof
    Patent number: 11034589
    Abstract: The present invention relates to cerium oxide particles that have excellent heat resistance especially useful for catalysts, functional ceramics, solid electrolyte for fuel cells, polishing, ultraviolet absorbers and the like, and particularly suitable for use as a catalyst or co-catalyst material, for instance in catalysis for purifying vehicle exhaust gas. The present invention also relates to a method for preparing such cerium oxide particles, and a catalyst, such as for purifying exhaust gas, utilizing these cerium oxide particles.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: June 15, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Naotaka Ohtake, Mitsuhiro Okazumi, Fabien Ocampo
  • CERIUM OXIDE PARTICLES AND METHOD FOR PRODUCTION THEREOF
    Publication number: 20190330073
    Abstract: The present invention relates to cerium oxide particles that have excellent heat resistance especially useful for catalysts, functional ceramics, solid electrolyte for fuel cells, polishing, ultraviolet absorbers and the like, and particularly suitable for use as a catalyst or co-catalyst material, for instance in catalysis for purifying vehicle exhaust gas. The present invention also relates to a method for preparing such cerium oxide particles, and a catalyst, such as for purifying exhaust gas, utilizing these cerium oxide particles.
    Type: Application
    Filed: November 30, 2018
    Publication date: October 31, 2019
    Inventors: Naotaka OHTAKE, Mitsuhiro OKAZUMI, Fabien OCAMPO
  • Cerium oxide particles and method for production thereof
    Patent number: 10160658
    Abstract: The present invention relates to cerium oxide particles that have excellent heat resistance especially useful for catalysts, functional ceramics, solid electrolyte for fuel cells, polishing, ultraviolet absorbers and the like, and particularly suitable for use as a catalyst or co-catalyst material, for instance in catalysis for purifying vehicle exhaust gas. The present invention also relates to a method for preparing such cerium oxide particles, and a catalyst, such as for purifying exhaust gas, utilizing these cerium oxide particles.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: December 25, 2018
    Assignee: Rhodia Operations
    Inventors: Naotaka Ohtake, Mitsuhiro Okazumi, Fabien Ocampo
  • CERIUM OXIDE PARTICLES AND METHOD FOR PRODUCTION THEREOF
    Publication number: 20170313594
    Abstract: The present invention relates to cerium oxide particles that have excellent heat resistance especially useful for catalysts, functional ceramics, solid electrolyte for fuel cells, polishing, ultraviolet absorbers and the like, and particularly suitable for use as a catalyst or co-catalyst material, for instance in catalysis for purifying vehicle exhaust gas. The present invention also relates to a method for preparing such cerium oxide particles, and a catalyst, such as for purifying exhaust gas, utilizing these cerium oxide particles.
    Type: Application
    Filed: November 10, 2015
    Publication date: November 2, 2017
    Inventors: Naotaka OHTAKE, Mitsuhiro OKAZUMI, Fabien OCAMPO