US2015182654A1PendingUtilityA1

Air purification system

43
Assignee: U VIX CORPPriority: Aug 5, 2010Filed: Jan 30, 2015Published: Jul 2, 2015
Est. expiryAug 5, 2030(~4 yrs left)· nominal 20-yr term from priority
Inventors:Yuko MoritoAkira Fujishima
A61L 9/205F24F 8/194B01D 2258/06B01D 53/885B01D 2255/20707Y02A50/20B01D 53/8668B01J 21/063B01D 2257/406B01D 53/32B01D 2259/818B01D 2259/804B01D 2257/704B01J 37/0201B01D 53/8634A61L 9/22B01J 35/39
43
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Claims

Abstract

An air purification system includes an internally hollow cylindrical casing made of a non-conducting material; an inner electrode arranged on an inner surface of the supporting member; an outer electrode arranged on an outer surface of the supporting member; a photocatalyst filter arranged on an outer surface of the outer electrode for purifying air inside a plasma generation zone; and a power source for supplying power of opposite polarities to each of the inner electrode and the outer electrode so as to generate plasma. The photocatalyst filter includes a filter element, and the filter element includes a porous titanium foil having a non-periodic spongy structure impregnated with anatase titanium dioxide particles as a photocatalyst.

Claims

exact text as granted — not AI-modified
We claim: 
     
         1 . An air purification system comprising:
 an internally hollow cylindrical supporting member made of a non-conducting material;   an inner electrode arranged on an inner surface of the supporting member;   an outer electrode arranged on an outer surface of the supporting member;   a photocatalyst filter arranged on an outer surface of the outer electrode for purifying air inside a plasma generation zone; and   a power source for supplying power of opposite polarities to each of the inner electrode and the outer electrode so as to generate plasma, wherein   the photocatalyst filter includes a filter element, and the filter element includes a porous titanium foil having a non-periodic spongy structure impregnated with anatase titanium dioxide particles as a photocatalyst.   
     
     
         2 . The air purification system according to  claim 1 , wherein the photocatalyst filter includes a plurality of filter elements. 
     
     
         3 . The air purification system according to  claim 1 , wherein the photocatalyst filter includes a plurality of flat and undulating filter elements arranged alternately. 
     
     
         4 . The air purification system according to  claim 3 , wherein the undulating filter element is formed by press processing the porous titanium foil.

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