国家/地区 世界知识产权组织（5）
IPC部 B（5）
IPC大类 B01（5）
IPC小类 B01D（5）
IPC A41D013/11（2） A62B018/02（2） B01D039/16（2）
B01D046/00（2） B01D071/36（2） B32B005/18（2）
B32B005/26（2）
发明人
公开年 2022（3） 2021（2）
申请年 2021（5）
专利权人

Separation membrane has support having water permeability, matrix layer supported by support and having holes, and graphene layer including graphene material supported by matrix layer and including graphene and/or graphene oxide, and having another holes overlapping holes.

HIROTAKA S, YASUHIKO T, MOTOYUKI H, MASASHI M, SAKUMA H, TADA Y, HIROOKA M, MARUYAMA M

Mask for use in respiratory protection for various diseases, has mask body that covers user's mouth and nose when worn by user, and wearing strap that is connected to both sides of mask body.

PARK S A

Sanitizing device used to purify and sanitize air of spaces from germs or microorganisms, comprises micro-perforated film provided on first side with adhesive layer and on second side with photocatalytic layer based on titanium dioxide.

ZAT F, ALLEGRANZI C, VERDI M, TOMASELLA L

Filter used in device e.g. mask, breathing apparatus and face covering, vent cover and heating, ventilation, has polyurethane-based polymer foam comprising virucidal/bactericidal agent having cetylpyridinium chloride and/or dimethyloctadecyl(3-(trimethyloxysilyl)propyl)ammonium chloride.

RAMAPPA D A, JOGIKALMATH G

Face mask e.g. surgical face mask, comprises mask component to cover wearer's mouth and nose, and fastener engaging with mask component comprising air-permeable outer layer, inner layer located on inner side of mask component, and graphene layer, where fastener connects mask component to wearer.

ZHAMU A, JANG B Z, ZHANG B