国家/地区 中国（3）
IPC部 C（2） H（2）
IPC大类 C04（2）
IPC小类 C04B（2）
IPC C04B033/13（2） C04B041/89（2）
发明人 GU W（3）
公开年 2023（3）
申请年 2022（2） 
专利权人 FOSHAN DONGP.（2） FOSHAN DONGP.（2） GUANGDONG DO.（2）

Preparing epitaxial wafer used in LED chip, involves providing substrate, growing aluminum nitride layer on substrate sequentially buffer layer, and introducing hydrogen and nitrogen to perform surface treatment to layer before growing buffer layer.

GU W, JIN C, HU J, LV M, LIU C

Heating rock plate production system useful in e.g. heating ceramic tile, comprises grinding device for grinding blank raw material into powder, dry pressing forming device for pressing powder into blank, glazing device for glazing second blank with glaze layer on surface, and sintering device.

GU W, XU Y, ZHONG B, WANG J

Heat generating rock plate comprises waterproof insulation layer, circuit layer, graphene coating and rock plate layer arranged in sequence from bottom to top, where rock plate comprises green body and bottom glaze layer and surface glaze layer covered on blank.

GU W, XU Y, WANG J, ZHONG B