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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.:

US 8974735 B1

PDFFull Text
Date of Patent:
Mar. 10, 2015

Filed:

Jul. 29, 2011

Air purification system

Applicants:

Yuko Morito, Tokyo, JP;

Akira Fujishima, Kanagawa, JP;

Inventors:

Yuko Morito, Tokyo, JP;

Akira Fujishima, Kanagawa, JP;

Assignee:

U-Vix Corporation, Tokyo, JP;

Attorney:

Procopio, Cory, Hargreaves & Savitch LLP

Primary Examiner:

Monzer R Chorbaji

Int. Cl.
CPC ...
A62B 7/08 (2006.01); A61L 9/20 (2006.01); A61L 9/22 (2006.01); B01D 53/32 (2006.01); B01D 53/86 (2006.01); B01D 53/88 (2006.01); B01J 21/06 (2006.01); B01J 35/00 (2006.01); B01J 37/02 (2006.01); F24F 3/16 (2006.01);
U.S. Cl.
CPC ...
A61L 9/205 (2013.01); A61L 9/22 (2013.01); B01D 53/32 (2013.01); B01D 53/8634 (2013.01); B01D 53/8668 (2013.01); B01D 53/885 (2013.01); B01J 21/063 (2013.01); B01J 35/004 (2013.01); B01J 37/0201 (2013.01); B01D 2255/20707 (2013.01); B01D 2257/406 (2013.01); B01D 2257/704 (2013.01); B01D 2258/06 (2013.01); B01D 2259/804 (2013.01); B01D 2259/818 (2013.01); F24F 2003/1635 (2013.01);
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.

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