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.:
Date of Patent:
Jul. 14, 2020
Filed:
Jul. 16, 2019
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Inventors:
Takafumi Inoue, Nagaokakyo, JP;
Kenichiro Takumi, Nagaokakyo, JP;
Daiji Tamakura, Nagaokakyo, JP;
Masamichi Ando, Nagaokakyo, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Nagaokakyo-Shi, Kyoto-Fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 39/08 (2006.01); D02G 3/44 (2006.01); H01L 41/08 (2006.01);
U.S. Cl.
CPC ...
B01D 39/08 (2013.01); D02G 3/449 (2013.01); H01L 41/082 (2013.01); D10B 2401/13 (2013.01); D10B 2401/16 (2013.01);
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.