国家/地区 中国（14） 日本（5） 欧洲专利局（EPO）（4） 西班牙（4） 韩国（4） 台湾（4） 美国（4） 世界知识产权组织（4）
IPC部 B（15）
IPC大类 C22（15）
IPC小类 C22F（15）
IPC C22F001/08（15）
发明人 CHIBA Y（5） CHIBA G（4） YOSHIHIRO C（3）
CHIBA YOSHIHIRO（2） WANG X（2） ZHANG W（2）
公开年 2022（4） 2013（3） 2012（2） 2017（2） 2023（2）
申请年 2022（5）  2012（4） 
专利权人 JX NIPPON MI.（5） NIPPON MININ.（4） NIPPON MININ.（4） NIPPON MININ.（2）

Preparing copper-clad aluminum composite welding strip used in interconnection strip, bus belt comprises surface cleaning of copper strip and aluminum rod, wrapping, multiple drawing of composite copper rod, and ultrasonic testing, drawing composite copper wire, heat annealing and tin plating.

DONG W, ZHANG W, GAO L, CHEN Q

Preparing graphene-doped copper bonding wire comprises taking graphene oxide, mixing with mixed metal powder to obtain molten mixed powder, placing semi-finished product wire into aqueous solution of reducing agent for heating, annealing, washing and drying.

FENG Z, QU S, LIU B, WANG T, LIN L

Method for preparing metal-graphene composite material by using electronic component, involves preparing metal-graphene composite material by hot-pressing sintering, and applying pulse current to metal substrate to perform surface heat treatment to metal substrate.

WANG X, HUO Y, LI J, CAO Z, XIAO Z

Preparing copper-based graphene composite material comprises growing graphene film on surface of copper foil by chemical vapor deposition, stacking, using ultrasonic welding technology to weld stacked components, and removing stress and annealing welded stack assembly.

WANG E, WANG X, HE M, ZHANG R, ZHAO C, HU X, LIU K, FU Y

Preparing copper alloy semiconductor lead frame for circuit board, comprises heating copper alloy ingots, removing oxide, aging, adding copper alloy semi-finished product silver plating bath for silver-plated plating treatment, and activating.

CAO G, LI C, XU J, YIN H

Preparing copper-based graphene useful for preparing copper-based graphene conductor of electric wire cable, comprises performing surface cleaning and drying on copper material, stacking with high temperature resistant substrate, annealing, and growing graphene layer on copper material surface.

FU J, YANG J, SHEN H, ZHANG W, MA Y

Copper wire for wind power generation motor, comprises brass, red copper, industrial silver, graphene, aluminum, tungsten, nickel, iron, and nano graphite, where graphene and nano-graphite are in powder form and are crushed and sieved.

CHEN S

Preparing interpenetrating graphene-copper composite material involves using atmospheric pressure chemical vapor deposition method, using gaseous or liquid carbon source to grow graphene in situ on copper or copper alloy powder.

LI T

Preparation of graphene film-coated copper wire, melting high-purity copper, casting, drawing to obtain copper wire, annealing, finishing ultrafine copper wire, dispersing ultrafine copper wire in graphene oxide solution and drying.

JIN P, LU Z, TIAN S

Preparation method for cylinder sleeve of copper base composite material comprises pressing mixed material comprising copper carbon nanotube, graphene, carbon fiber, nickel powder, iron powder, and copper powder.

YAO G