Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Method for separation of nitrogen and carbon dioxide by use of ceramic materials as separating agent
 Separation of nitrogen and carbon dioxide is accomplished by a method using as a separating material one member selected from the group consisting of sepiolite in the unmodified form, sepiolite which has been heat-treated, and sepiolite which has had part or the whole of the exchangeable cation thereof replaced with zinc ion and which has been subsequently subjected to a heat treatment. 
Agency of Industrial Science & Technology, Ministry of International Trade & Industry
Y B Y B B B B B B B B
Y10S B01D Y02C B01D B01D B01D B01D B01D B01D B01J B01D
additional inventional additional additional additional inventional additional additional additional inventional inventional
Masakazu Shinji Toshiaki Keiichi Kenzi
Horio Tomura Mori Inukai Suzuki