国家/地区 中国（3）
IPC部 B（2）
IPC大类
IPC小类
IPC
发明人 LIU J（3）
公开年 2021（2）
申请年 2021（3）
专利权人 LIU J（3）

Scattering device for graphene, has rotating barrel whose left end is screwed with sealing cover, front of front fixing plate is fixedly connected with motor, and output end of motor is connected with front end of front main shaft.

LIU J

Power semiconductor device used for high-power electronic devices, has power semiconductor device main chassis whose upper end surface is provided with heat dissipation groove, and heat dissipation film arranged in heat dissipation groove.

LIU J

Remediation of magnetic sandy soil by inserting hollow tube into soil, injecting embedded balls into soil, crushing dry leaves, mixing with repair solution, spraying on soil, covering with fallen leaves and transplanting vegetation.

LIU J, LIU R