国家/地区 世界知识产权组织（12） 中国（10） 美国（10） 日本（7） 欧洲专利局（EPO）（6） 加拿大（4） 印度（3） 韩国（3）
IPC部 C（20）
IPC大类 C01（20）
IPC小类 C01B（20）
IPC C01B032/182（20）
发明人 IMADA T（2） NAITO K（2） SUZUKI A（2）
YOSHINAGA N（2）
公开年 2021（5） 2018（4） 2016（3） 2017（3） 2014（2）
申请年 2017（6）  2015（3）  2020（3）  2021（3） 
专利权人 TOSHIBA KK（2）

Recycling waste water in preparation of graphene useful in optical, electrical, mechanical, and micro-nano processing, comprises e.g. treating graphene acidic wastewater obtained by acid washing process, degrading and decomposing and mineralizing by semiconductor strong ionization.

ZHAN Z

Janus composite used for adsorbing oil from an oil-in-water emulsion, comprises hydrophobic nanoparticulate component supported by 2- or 3-dimensional hydrophilic framework.

ZOU L

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

Preparation of three-dimensional graphene-based zero-valent iron nanomaterial used in advanced oxidation, involves mixing three-dimensional graphene aerogel with iron solution, adding sodium borohydride, washing, and freeze drying.

ZHANG P, FAN M, SUN H

Multi-layered membrane useful for separating many ions or molecules in a fluid stream and in device for osmotic power generation, comprises a top layer, a bottom layer, and a spacer layer.

GARAJ S, SPINA M

Composite photocatalyst used in degradation of organic pollutant, comprises catalytic nanoparticles comprising tungsten oxide and graphene, and co-catalyst nanoparticles comprising transition metal boride and transition metal hydroxide.

ASIRI A M, TAHIR M B

Preparing hydrophobic graphene film by preparing graphene dispersion and nanoparticle dispersion, mixing, depositing on support, drying, soaking in hydrophobic modifier solution using hydrophobic modifier, water and ethanol, and treating.

LIU G, ZHANG M, JIN W

Producing Janus graphene sponge useful as filter for separating water-oil, comprises e.g. reacting mixture comprising oxidized graphene solution and ascorbic acid solution to form reduced oxidized graphene and forming self-assembly.

BAIK S H, YUN J J, KHAN F A

Graphene containing composition e.g. multilayered hydrogen graphene composition for product e.g. thermal insulation barrier comprises graphene component containing monolayer graphene and/or multilayered graphene, and graphite component.

BRERETON D, BRERETON T, WINKELMANN A

Graphene production equipment with sewage recycling function, has water pump with one end communicated with ultra-filter box and other end communicated with one end of recovery pipe whose other end is communicated with production tower.

WANG H