国家/地区 中国（3）
IPC部 C（3）
IPC大类 C30（3）
IPC小类 C30B（3）
IPC C30B029/06（3）
发明人 GAO Y（2）
公开年 2021（3）
申请年 2021（2） 
专利权人

Long-life guide cylinder comprises e.g. outer layer as pre-oxidized felt insulating felt, middle layer as modified resin formed on inner side wall of outer layer, and inner layer as carbon/carbon composite material formed on inner side wall of middle layer.

BAI Y, QIN X, LIU Y, ZHOU J

High thermal conductivity composite crucible useful for polycrystalline silicon ingot comprises crucible body having cavity structure with open upper end, and quartz ceramic structure layer laid on graphene-silica composite material layer.

LI J, XIE Y, GAO Y

Graphite heating device for monocrystalline silicon production, includes universal wheels are fixed at the corners of the bottom of the base, and supporting feet are fixed at the bottom of the base on one side of the universal wheel.

SONG S, GAO Y, ZHANG P, QI Y, HE X, YANG Y