国家/地区 中国（3）
IPC部 B（3）
IPC大类 B22（3）
IPC小类 B22D（3）
IPC
发明人
公开年 2022（2）
申请年 2022（3）
专利权人

Normally-closed gallium nitride integrated device of large threshold voltage used in mobile phone, has sub-gate composed of gate layer connected through graphene film electrode to form series-parallel mixed double high frequency characteristics high electron mobility transistor integrated structure.

LUO M, CHENG T, WANG X, ZU Y, YU C

Surface coating of copper roller of belt furnace used for neodymium-iron-boron material, comprises silica gel coating comprising silicate and water catalyzing by acidic catalyst.

QIU X

Preparation of graphene/copper composite material used in supercapacitor application, involves preparing graphene film using chemical vapor deposition process, casting copper water using copper water casting technique to prepare copper/carbon/copper/composite material, and repeating process.

GONG M, ZHAO M, LI M, CHEN C, CHEN Q, YANG W, LI Y, WANG Y, LIU B, PEI Z, ZHANG X, LIANG J