国家/地区 中国（2） 日本（2） 美国（2） 世界知识产权组织（2）
IPC部 B（5）
IPC大类 B01（5）
IPC小类 B01D（5）
IPC B01D039/08（5）
发明人 JANG B Z（2） ZHAMU A（2）
公开年 2021（2）
申请年 2020（2） 
专利权人 NANOTEK INST.（2）

Face mask for use as personal protective equipment, comprises layer comprising surface-functionalized graphene particles having specified sulfur impurity level, manganese level, and/or nitrogen oxide level.

PROMNIMIT A

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

Face mask e.g. surgical mask, comprises mask component for covering wearers mouth and nose and comprising air-permeable outer layer, inner layer and graphene layer, and fastener for connecting mask component to wearer.

JANG B Z, ZHAMU A

Nanomaterial bacteriostatic mask includes filter material comprising bamboo carbon fiber and graphene oxide.

YE X, ZHANG Y, ZHAO B, YAO L, LIU P, HUANG C

Graphene derivative used in composite used as e.g. adsorbent, has preset amount of component derived from ester bond to total of amount of components derived from carbon-carbon single bond, carbon-oxygen bond, ether and ester bonds.

SUZUKI A, IMADA T, NAITO K, YOSHINAGA N