国家/地区 美国（7） 世界知识产权组织（5） 中国（4） 欧洲专利局（EPO）（3） 日本（3） 澳大利亚（2） 加拿大（2） 印度（2） 韩国（2） 新加坡（2）
IPC部 B（8）
IPC大类 B82（8）
IPC小类 C01B（8）
IPC C09K011/06（8）
发明人 TETSUKA H（2） TETSUKA HIROYUKI（2） TEZUKA H（2）
公开年 2012（2） 2016（2） 2022（2）
申请年 2011（2）  2015（2）  2021（2） 
专利权人 TOYOTA CHUO .（2）

Producing photoluminescence material involves placing plastic piece into working solution which is water, applying micro-plasma onto surface of the working solution, and degrading the plastic piece into multiple smaller molecular and graphene quantum dot.

CHIANG W, WENG R, WENG R J

Determining concentration of treatment compound in water source, comprises combining water source, treatment compound for treating source and graphene quantum dot, irradiating the tagged water source and measuring luminescent emission.

KUNDU K, MOLONEY J

Forming a polymer composite comprising polymers and graphene quantum dots, useful in LEDs, comprises mixing a polymer component comprising polymers and/or polymer precursors with graphene quantum dots.

TOUR J M, KOVALCHUK A, XIANG C, TOUR J, CHANGSHENG X, TOUR YA M, XIANG CH

Synthesis of graphene derivatives and functional materials used in e.g. transistors, sensors, actuators, pharmaceutical, information displays and semiconductor comprises forming refluxed solution of starting material and additive.

TANIMOLA O W

Forming nitrogen and sulfur co-doped graphene quantum dots, comprises heating mixture of carbon source and compound containing nitrogen and sulfur in autoclave.

YU T, DONG Y, LI C M, OTHER I A N T

Nitrogen-containing graphene structure for fluorescent substance dispersion liquid, has single layer or multilayer graphene nanosheet, and nitrogen is introduced into graphene structure.

TETSUKA HIROYUKI, OKAMOTO KAZUO, TEZUKA H, OKAMOTO K, TETSUKA H

Light emitting component for e.g. light emitting element, has coating material coated on surface of base material having graphene structure.

TETSUKA HIROYUKI, TEZUKA H, TETSUKA H

Graphene material in the form of sheet, ribbon or polyphenylene molecule, films, optical and electronic devices is pristine in the interior of the plane and functionalized at its edges.

DAI H, LI X, SUN X