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US 2019/0336895 A1Published application
Filter and air-conditioning device
AssigneeMurata Manufacturing Co., Ltd.
InventorsTakafumi Inoue, Kenichiro Takumi, Daiji Tamakura, Masamichi Ando
Life of this patent
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Abstract
A filter that includes a plurality of fibers arranged to form a first principal surface and a second principal surface opposite the first principal surface, and a plurality of first piezoelectric fibers that generate negative charges by stretching are arranged at least on a side of the first principal surface.
Claims15
A filter comprising:
- a plurality of fibers arranged to form a first principal surface and a second principal surface opposite the first principal surface;
- and
- of the plurality of fibers, a plurality of first piezoelectric fibers that generate negative charges by stretching are arranged at least on a side of the first principal surface.
A filter comprising:
- a plurality of fibers arranged to form a first principal surface and a second principal surface opposite the first principal surface;
- and
- of the plurality of fibers, a plurality of first piezoelectric fibers that generate positive charges by stretching are arranged at least on a side of the second principal surface.
Dependencies are inferred from the claim text.