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US 12,721,386 B2Granted
Mask
AssigneeMurata Manufacturing Co., Ltd.
InventorsMasayoshi Takagi, Daiji Tamakura, Kenichiro Takumi, Ryosuke Ebina, Koji Takeshita
Life of this patent
Estimating the term…
Abstract
A mask for covering at least a nostril and a mouth of a wearer. The mask includes a main body portion and an ear hooking portion attached to the main body portion. At least a part of the main body portion has a sheet-like piezoelectric portion, and the piezoelectric portion includes a yarn formed of an electric field forming filament.
Claims16
A mask for covering at least a nostril and a mouth of a wearer, the mask comprising:
- a main body portion, wherein at least a part of the main body portion comprises a sheet-like piezoelectric portion, and wherein the sheet-like piezoelectric portion includes a yarn having an electric field forming filament;
- and
- an ear hooking portion attached to the main body portion,
- wherein the main body portion of the mask further comprises:
- (i) a piezoelectric region that includes the sheet-like piezoelectric portion, and (ii) a non-piezoelectric region, and wherein a material of the piezoelectric region expands and contracts more than a material of the non-piezoelectric region, and
- wherein the piezoelectric region and the non-piezoelectric region are coupled to each other by stitching.
3 more elements
Dependencies are inferred from the claim text.