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:
Nov. 10, 1998
Filed:
Mar. 11, 1996
Applicant:
Inventor:
Takashi Honda, Tokyo, JP;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
502346 ; 502300 ; 502304 ; 502318 ; 502325 ; 502327 ; 502334 ; 502335 ; 502336 ; 502232 ; 502237 ; 502240 ; 502241 ; 502242 ; 502244 ; 502 61 ; 502 64 ; 502 65 ; 4232132 ; 4232135 ; 4232392 ;
Abstract
Catalyst for controlling emissions of the present invention is comprised of at least one kind of transition metal atoms and at least one of Al or Si, wherein said transition metal atoms form a part of the surface of the catalyst for purifying exhaust gas. Accordingly, the catalyst for purifying exhaust gas has both high performance for purifying NO.sub.x and high heat resistance, because monoatomic active metal disperses in the catalyst structure, active metal is taken firmly in the structure, and said transition metal forms a part of the surface of the surface.