Patents by Inventor Nobuya Iwami

Nobuya Iwami 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).

  • Nitrogen oxide removal catalyst system and nitrogen oxide removal method
    Patent number: 7597865
    Abstract: Provided in a catalyst system are: a first reaction part fitted with a first catalyst containing, as active constituents, at least, a complex oxide consisting of two or more oxides selected from among silica, alumina, titania, zirconia, and tungsten oxide, and a rare earth metal or transition metal (except Cu, Co, Ni, Mn, Cr, and V); and a second reaction part fitted with a second catalyst containing, as active constituents, at least, a noble metal and a silica-alumina type complex oxide.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: October 6, 2009
    Assignees: Tokyo Roki Co., Ltd, Nissan Diesel Motor Co., Ltd.
    Inventors: Takayuki Mori, Nobuya Iwami, Takayuki Kumagai, Isamu Kanaya, Hiroki Ueno, Kiminobu Hirata