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.

Date of Patent:
Mar. 31, 2009

Filed:

Feb. 14, 2006
Applicants:

Kenji Suzuki, Nagoya, JP;

Kenji Yajima, Nagoya, JP;

Kunio Nakayama, Okazaki, JP;

Toshihiro Tomita, Nagoya, JP;

Inventors:

Kenji Suzuki, Nagoya, JP;

Kenji Yajima, Nagoya, JP;

Kunio Nakayama, Okazaki, JP;

Toshihiro Tomita, Nagoya, JP;

Assignee:

NGK Insulators, Ltd., Nagoya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 71/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A gas separator is provided, including a porous substrate made of a first ceramic and a gas-separating layer containing zeolite disposed on the surface of the porous substrate. The gas-separating layer further contains, in addition to zeolite, a thermal expansion coefficient-adjusting material made of a second ceramic having a linear thermal expansion coefficient satisfying a predetermined relationship, so that the difference between the thermal expansion coefficient of the porous substrate and the gas-separating layer can be reduced.


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