Patents by Inventor Kazutoshi Akashi

Kazutoshi Akashi 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).

  • Exhaust gas purifying catalyst and production method thereof
    Patent number: 9623401
    Abstract: An exhaust gas purifying catalyst has enhanced NOx purification performance in a lean atmosphere, and a production method for producing an exhaust gas purifying catalyst includes sputtering a target material containing Ta and Rh to form composite fine metal particles respectively containing Ta and Rh.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: April 18, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi Nagao, Kazutoshi Akashi
  • Exhaust gas purification catalyst and the method for producing the same
    Patent number: 9561496
    Abstract: An object of the present invention is to provide an exhaust gas purification catalyst having an improved NOx purification performance in a lean atmosphere; and a method for producing the same. The method for producing an exhaust gas purification catalyst according to the present invention includes sputtering a target material containing Nb and Rh to produce fine composite-metal particles containing Nb and Rh.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: February 7, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi Nagao, Kazutoshi Akashi
  • EXHAUST GAS PURIFICATION CATALYST AND THE METHOD FOR PRODUCING THE SAME
    Publication number: 20160279614
    Abstract: The method for producing an exhaust gas purification catalyst according to the present invention includes sputtering a target material containing Nb and Rh to produce fine composite-metal particles containing Nb and Rh.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 29, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi NAGAO, Kazutoshi AKASHI
  • EXHAUST GAS PURIFYING CATALYST AND PRODUCTION METHOD THEREOF
    Publication number: 20160184804
    Abstract: An exhaust gas purifying catalyst has enhanced NOx purification performance in a lean atmosphere, and a production method for producing an exhaust gas purifying catalyst includes sputtering a target material containing Ta and Rh to form composite fine metal particles respectively containing Ta and Rh.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 30, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi NAGAO, Kazutoshi AKASHI
  • Exhaust purification system for internal combustion engine
    Patent number: 9297288
    Abstract: Provided is an exhaust purification system for an internal combustion engine.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: March 29, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mayuko Osaki, Kazutoshi Akashi, Masao Watanabe, Shigeharu Takagi, Takeshi Nobukawa
  • NOx STORAGE REDUCTION CATALYST AND PRODUCTION METHOD THEREOF
    Publication number: 20160038918
    Abstract: An NOx storage reduction catalyst includes a catalyst support, and a catalyst metal and an NOx storage material supported thereon, wherein the catalyst metal is composed of a platinum-gold solid solution, and has a gold content of greater than 1 mol % but 20 mol % or less relative to the total molar number of platinum and gold contained in the catalyst metal. A method for producing an NOx storage reduction catalyst includes adding sodium borohydride to a mixed solution containing platinum ions and gold ions, thereby reducing the platinum ions and the gold ions to produce a catalyst metal composed of a platinum-gold solid solution; purifying the catalyst metal; and supporting the catalyst metal and an NOx storage material on a catalyst support.
    Type: Application
    Filed: July 31, 2015
    Publication date: February 11, 2016
    Inventors: Shogo SHIRAKAWA, Kazutoshi AKASHI
  • EXHAUST PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE (AS AMENDED)
    Publication number: 20140216013
    Abstract: Provided is an exhaust purification system for an internal combustion engine.
    Type: Application
    Filed: December 16, 2011
    Publication date: August 7, 2014
    Inventors: Mayuko Osaki, Kazutoshi Akashi, Masao Watanabe, Shigeharu Tagagi, Takeshi Nobukawa