Patents by Inventor Hironobu KUNIOKU

Hironobu KUNIOKU 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 purification catalyst
    Patent number: 9849443
    Abstract: Provided is an exhaust gas purification catalyst with excellent durability against exhaust gas including a poisoning substance. The exhaust gas purification catalyst includes a porous substrate, a catalyst coating layer formed on the porous substrate, and a dummy coating layer formed on the outermost surface of the catalyst coating layer. The catalyst coating layer has a carrier and a noble metal catalyst supported on the carrier. The dummy coating layer includes a carrier having at least alumina and does not include a noble metal catalyst. The dummy coating layer is formed to have a length which, from the end on the exhaust gas inlet side, is 10% to 70% of the entire length of the catalyst coating layer along the exhaust gas flow direction.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: December 26, 2017
    Assignee: CATALER CORPORATION
    Inventors: Takahiro Harada, Keiichi Narita, Michio Tanaka, Hironobu Kunioku, Ryota Nakashima
  • EXHAUST GAS PURIFICATION CATALYST
    Publication number: 20170014806
    Abstract: Provided is an exhaust gas purification catalyst with excellent durability against exhaust gas including a poisoning substance. The exhaust gas purification catalyst includes a porous substrate, a catalyst coating layer formed on the porous substrate, and a dummy coating layer formed on the outermost surface of the catalyst coating layer. The catalyst coating layer has a carrier and a noble metal catalyst supported on the carrier. The dummy coating layer includes a carrier having at least alumina and does not include a noble metal catalyst. The dummy coating layer is formed to have a length which, from the end on the exhaust gas inlet side, is 10% to 70% of the entire length of the catalyst coating layer along the exhaust gas flow direction.
    Type: Application
    Filed: December 9, 2014
    Publication date: January 19, 2017
    Applicant: CATALER CORPORATION
    Inventors: Takahiro HARADA, Keiichi NARITA, Michio TANAKA, Hironobu KUNIOKU, Ryota NAKASHIMA