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.
Patent No.:
Date of Patent:
Oct. 11, 2005
Filed:
Mar. 09, 2004
Kunio Nakayama, Okazaki, JP;
Kenji Suzuki, Nagoya, JP;
Manabu Yoshida, Bisai, JP;
Kenji Yajima, Nagoya, JP;
Toshihiro Tomita, Nagoya, JP;
Kunio Nakayama, Okazaki, JP;
Kenji Suzuki, Nagoya, JP;
Manabu Yoshida, Bisai, JP;
Kenji Yajima, Nagoya, JP;
Toshihiro Tomita, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
This invention provides a DDR type zeolite membrane, characterized in that it is formed as a membrane on a substrate and its main component is silica, and that each single gas permeance at room temperature and 100° C. are different, respectively among at least two types of gases selected from a group consisting of carbon dioxide (CO), hydrogen (H), oxygen (O), nitrogen (N), methane (CH), normal butane (n-CH), isobutane (i-CH), sulfur hexafluoride (SF), ethane (CH), ethylene (CH), propane (CH), propylene (CH), carbon monoxide (CO), and nitrogen monoxide (NO).