Patents by Inventor Hisaya Kawabata

Hisaya Kawabata 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
    Publication number: 20050070428
    Abstract: An exhaust gas purifying catalyst includes a carrier and a catalyst layer provided on the carrier. The catalyst layer includes active Al2O3 on which a noble metal is carried, an oxygen storage agent on which Rh is carried, Al2O3 coated with ZrO2 on which Rh is carried, and a binder material.
    Type: Application
    Filed: September 3, 2004
    Publication date: March 31, 2005
    Applicant: Mazda Motor Corporation
    Inventors: Tomohiko Kawamoto, Katsuyuki Fujita, Tadashi Tokuyama, Masahiko Shigetsu, Masaaki Akamine, Hisaya Kawabata, Hideharu Iwakuni, Akihide Takami
  • Oxidation catalyst
    Publication number: 20030027719
    Abstract: An inside layer including zeolite and an outside layer including alumina and Pd are formed in a layered shape on a carrier, and Ag and Bi are simultaneously allowed to be carried on the inside and outside layers through impregnation. Thus, production of an alloy through a reaction between Pd and Ag can be suppressed by Bi.
    Type: Application
    Filed: August 2, 2002
    Publication date: February 6, 2003
    Inventors: Hisaya Kawabata, Masahiko Shigetsu, Kazuo Misonoo
  • Exhaust gas purifying method and exhaust gas purifying catalyst
    Publication number: 20020187893
    Abstract: A catalyst comprises an HC trapping material that is capable of trapping HC in an exhaust gas under low temperatures and releasing HC with a raise in temperature and catalytic material containing a Ce—Pr double oxide capable of oxidizing and purifying HC from the HC trapping material with a high efficiency.
    Type: Application
    Filed: March 25, 2002
    Publication date: December 12, 2002
    Applicant: Mazda Motor Corporation
    Inventors: Hiroshi Yamada, Seiji Miyoshi, Akihide Takami, Kenji Okamoto, Masahiko Shigetsu, Hisaya Kawabata