Title:
DUST COLLECTION FILTER UNIT, PROJECTION IMAGE DISPLAY DEVICE, AND AIR CLEANER
Document Type and Number:
WIPO Patent Application WO/2012/105208
Kind Code:
A1
Abstract:
A dust collection filter unit (100) is provided with, in addition to a pleated filter (105) configured by folding a filter material, and a frame body (106) having the pleated filter (105) attached to the inside thereof, a supporting structure for the pleated filter (105). The supporting structure is provided inside of the frame body (106), and maintains the shape of the pleated filter (105) by supporting a plurality of folded portions of the pleated filter (105).
Inventors:
YAMAGISHI SHIGEKAZU
SEKIDO HIROSHI
SEKIDO HIROSHI
Application Number:
PCT/JP2012/000542
Publication Date:
August 09, 2012
Filing Date:
January 27, 2012
Export Citation:
Assignee:
PANASONIC CORP (JP)
YAMAGISHI SHIGEKAZU
SEKIDO HIROSHI
YAMAGISHI SHIGEKAZU
SEKIDO HIROSHI
International Classes:
B01D46/52; B03C3/28; G03B21/16
Foreign References:
| JP2008151980A | 2008-07-03 | |||
| JP2007029216A | 2007-02-08 | |||
| JPS63173330U | 1988-11-10 | |||
| JPS521975A | 1977-01-08 | |||
| JPS53103279A | 1978-09-08 | |||
| JP2002263426A | 2002-09-17 | |||
| JPH0523522A | 1993-02-02 | |||
| JP2008126097A | 2008-06-05 | |||
| JPS6425311U | 1989-02-13 | |||
| JPH0724228A | 1995-01-27 | |||
| JPH05154318A | 1993-06-22 | |||
| JPS63115424U | 1988-07-25 | |||
| JPH0679119A | 1994-03-22 | |||
| JP2004205667A | 2004-07-22 |
Attorney, Agent or Firm:
OGASAWARA PATENT OFFICE (JP)
Patent business corporation Ogasawara patent firm (JP)
Patent business corporation Ogasawara patent firm (JP)
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