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Patent Searching and Data


Title:
ELECTRICALLY CHARGED FILTER AND MASK
Document Type and Number:
WIPO Patent Application WO/2011/138951
Kind Code:
A1
Abstract:
Disclosed is an electrically charged filter which is characterized by comprising: a liquid-charged nonwoven fabric layer that has been electrically charged by the action of a force applied by means of a polar liquid; and a friction-charged nonwoven fabric layer that has been electrically charged by the friction between multiple types of fiber components. The electrically charged filter has a high initial trapping effect and rarely undergoes the deterioration of trapping efficiency.

Inventors:
TAKEUCHI Masami (7, Kitatone, Koga-sh, Ibaraki 13, 〒3060213, JP)
竹内 政実 (〒13 茨城県古河市北利根7番地 日本バイリーン株式会社内 Ibaraki, 〒3060213, JP)
Application Number:
JP2011/060546
Publication Date:
November 10, 2011
Filing Date:
May 02, 2011
Export Citation:
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Assignee:
JAPAN VILENE COMPANY, LTD. (Vilene Bldg, 2-14-5 Sotokanda, Chiyoda-k, Tokyo 14, 〒1018614, JP)
日本バイリーン株式会社 (〒14 東京都千代田区外神田2-14-5バイリーンビル Tokyo, 〒1018614, JP)
TAKEUCHI Masami (7, Kitatone, Koga-sh, Ibaraki 13, 〒3060213, JP)
International Classes:
B01D39/16; A62B18/02; B03C3/28; B32B5/26
Foreign References:
JP2003524519A2003-08-19
JP2007092242A2007-04-12
JP2005029944A2005-02-03
Other References:
"Senni Binran - Genryo Hen", October 1970, MARUZEN CO., LTD., pages: 727 - 779
"Boujin Masuku no Kikaku", 11 September 2000, MINISTRY OF HEALTH LABOR & WELFARE
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (SOEI PATENT AND LAW FIRM, Marunouchi MY PLAZA 9th fl. 1-1, Marunouchi 2-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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Claims: