1
Shigeru Aozasa: Method for preparing a zirconium-cerium composite oxide. Anan Kasei, Darby & Darby, January 9, 2001: US06171572 (31 worldwide citation)

A zirconium—cerium composite oxide having excellent heat resistance and being capable of maintaining its large specific surface area even when used under high-temperature conditions, which composite oxide contains zirconium and cerium at a weight ratio of 51 to 95:49 to 5 in terms of zircomium oxide ...


2
Shinyao Yao, Hideo Yokoi, Tadatoshi Murota, Kazuhiro Yamamoto, Shigeru Aozasa: Composite oxide having oxygen absorbing and desorbing capability and method for preparing same. Santoku Metal, Darby & Darby P C, December 3, 1996: US05580536 (24 worldwide citation)

A composite oxide having oxygen absorbing and desorbing capability contains 4.99-98.89% by weight of cerium oxide, 1-95% by weight of zirconium oxide, 0.01-20% by weight of hafnium oxide, and 0.1-10% by weight of an additional metal oxide selected from titanium oxide, tungsten oxide, nickel oxide, c ...


3
Shinya Yao, Hideo Yokoi, Tadatoshi Murota, Kazuhiro Yamamoto, Shigeru Aozasa: Composite oxide having oxygen absorbing and desorbing capability. Santoku Metal, Darby & Darby P C, November 5, 1996: US05571492 (19 worldwide citation)

A composite oxide having oxygen absorbing and desorbing capability contains 4.99-98.99% by weight of cerium oxide, 1-95% by weight of zirconium oxide and 0.01-20% by weight of hafnium oxide. The composite oxide includes .PHI.' phase as a crystal phase and has oxygen absorbing and desorbing capabilit ...


4
Shinya Yao, Hideo Yokoi, Tadatoshi Murota, Kazuhiro Yamamoto, Shigeru Aozasa: Method for preparing composite oxide having oxygen absorbing and desorbing capability. Santoku Metal, Darby & Darby P C, December 10, 1996: US05582785 (10 worldwide citation)

A method for preparing a composite oxide having oxygen absorbing and desorbing capability involves the steps of: providing a starting composite oxide comprising cerium oxide, zirconium oxide, and hafnium oxide; subjecting the starting composite oxide to heating-deoxidation to give a deoxidized compo ...


5
Tadatoshi Murota, Kazuhiro Yamamoto, Shigeru Aozasa: Compound oxide having oxygen absorbing and desorbing capability and method for preparing same. Santoku Metal, Darby & Darby, December 26, 1995: US05478543 (10 worldwide citation)

A compound oxide having oxygen absorbing and desorbing capability contains 4.99-98.99% by weight of cerium oxide, 1-95% by weight of zirconium oxide and 0.01-20% by weight of hafnium oxide. The compound oxide has an oxygen absorbing and desorbing capability of at least 100 .mu.mol/g at 400-700.degre ...


6
Shigeru Aozasa, Emmanuel Rohart, Lianxin Dai, Bernard Pacaud: Ceric oxide and method for production thereof, and catalyst for exhaust gas clarification. Anan Kasei, Darby & Darby P C, April 22, 2008: US07361322 (1 worldwide citation)

The present invention relates to ceric oxide that has excellent heat resistance and oxygen absorbing and desorbing capability useful as a co-catalyst material suitable for a catalyst for purifying exhaust gas, that is capable of maintaining a large specific surface area even in use in a high tempera ...


7
Lianxin Dai, Bernard Pacaud, Shigeru Aozasa, Emmanuel Rohart: Ceric oxide and method for production thereof, and catalyst for exhaust gas clarification. Darby & Darby PC, November 25, 2004: US20040234438-A1

The present invention relates to ceric oxide that has excellent heat resistance and oxygen absorbing and desorbing capability useful as a co-catalyst material suitable for a catalyst for purifying exhaust gas, that is capable of maintaining a large specific surface area even in use in a high tempera ...


8
Lianxin Dai, Bernard Pacaud, Shigeru Aozasa, Emmanuel Rohart: Ceric oxide and method for production thereof, and catalyst for exhaust gas clarification. Anan Kasei, Darby & Darby PC, June 7, 2007: US20070128097-A1

The present invention relates to ceric oxide that has excellent heat resistance and oxygen absorbing and desorbing capability useful as a co-catalyst material suitable for a catalyst for purifying exhaust gas, that is capable of maintaining a large specific surface area even in use in a high tempera ...



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