国家/地区 世界知识产权组织（3）
IPC部 B（3） A（2）
IPC大类 B01（3）
IPC小类 B01D（3）
IPC B01D071/36（2）
发明人
公开年 2022（3）
申请年 2021（3）
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