2003-126694 is referenced by 50 patents.

PROBLEM TO BE SOLVED: To inhibit a grain growth of a noble metal particle and to enhance durability.SOLUTION: The catalyst for cleaning exhaust gas is constituted by a carrier 1 comprising a CeO2-ZrO2 combined oxide; an oxide particle of at least one kind of metal selected from Al, Ni and Fe carried on the carrier 1; and a noble metal 3 carried o the carrier 1. A movement of the noble metal 3 is inhibited by the oxide particle 2 and a grain growth of the noble metal 3 is inhibited.

Title
Catalyst for cleaning exhaust gas
Application Number
2001-327772
Publication Number
2003-126694
Application Date
October 25, 2001
Publication Date
May 7, 2003
Inventor
Kanazawa Takaaki
Nishimura Akira
Assignee
Toyota Motor
IPC
B01J 23/56
B01D 53/94
B01J 23/63