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. 28, 2006

Filed:

Mar. 02, 2001
Applicants:

Shigekazu Mase, Aichi, JP;

Shigeo Nagaya, Aichi, JP;

Junichiro Tsubaki, Aichi, JP;

Kiyoshi Komura, Aichi, JP;

Inventors:

Shigekazu Mase, Aichi, JP;

Shigeo Nagaya, Aichi, JP;

Junichiro Tsubaki, Aichi, JP;

Kiyoshi Komura, Aichi, JP;

Assignees:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 3/26 (2006.01); B32B 3/00 (2006.01); B32B 7/12 (2006.01); B01D 29/00 (2006.01); B01D 39/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A porous ceramic laminate has a porous silicon nitride substrate and a porous silicon nitride separation film supported thereon and having minute pores of sizes capable of Knudsen separation or molecular sieve by sintering a porous silicon nitride substrate supporting a formed layer containing polysilazane at 800° C. in a nitrogen atmosphere.


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