The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 1999
Filed:
Jul. 25, 1996
Makoto Horiuchi, Hyogo, JP;
Tomohiro Yokomizo, Hyogo, JP;
ICT Co., Ltd., Osaka-fu, JP;
Abstract
A catalyst for the purification of diesel engine exhaust gas is disclosed which excels in the ability to remove by combustion unburnt hydrocarbons and carbon monoxide as well as minute carbon particles in a wide temperature range from a low temperature zone upward. This catalyst for the purification of diesel engine exhaust gas comprises by having a three-dimensional structure coated with (A) a platinum and/or palladium-carrying refractory inorganic oxide powder obtained by depositing platinum and/or palladium and the catalytically active oxide of at least one metal selected from the group consisting of tungsten, antimony, molybdenum, nickel, vanadium, manganese, iron, bismuth, cobalt, zinc, and alkaline earth metals on (a) a first refractory inorganic oxide powder and (B) a catalyst composition formed of (b) a second refractory inorganic oxide powder and having the platinum and/or palladium contained therein in an amount in the range of from 5 to 50% by weight, based on the amount of (a) the first refractory inorganic oxide powder.