Oxygen storage material

US8993475B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8993475-B2
Application numberUS-30757107-A
CountryUS
Kind codeB2
Filing dateJun 22, 2007
Priority dateJul 6, 2006
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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Abstract

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An excellent oxygen storage capacity is achieved even in the case used for a long period of time under high temperature conditions. An oxygen storage material contains a first particle made of a composite oxide of cerium and zirconium or a composite oxide of cerium, a rare-earth element other than cerium and zirconium, a second particle including a composite oxide of a rare-earth element, an alkaline-earth element and zirconium, and a precious metal. A part of the precious metal forms a solid solution with the composite oxide included in the second particle.

First claim

Opening claim text (preview).

The invention claimed is: 1. An oxygen storage material comprising: a first particle made of a first composite oxide consisting essentially of oxygen, cerium and zirconium or a second composite oxide consisting essentially of oxygen, cerium, a first rare-earth element other than cerium and zirconium; a second particle including a third composite oxide of a second rare-earth element, an alkaline-earth element and zirconium, the second particle further including a support supporti…

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What does patent US8993475B2 cover?
An excellent oxygen storage capacity is achieved even in the case used for a long period of time under high temperature conditions. An oxygen storage material contains a first particle made of a composite oxide of cerium and zirconium or a composite oxide of cerium, a rare-earth element other than cerium and zirconium, a second particle including a composite oxide of a rare-earth element, an al…
Who is the assignee on this patent?
Kimura Mareo, Narita Keiichi, Hirai Akimasa, and 11 more
What technology area does this patent fall under?
Primary CPC classification C01G25/02. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).