Inventor

JI YAFENG

CN2 patents

Patents

2 patents

US12330197B2Jun 17, 2025

Large-scale axle intelligent cross wedge rolling mill for rail transit

UNIV TAIYUAN SCIENCE & TECH0 citations44

US11691189B2Jul 4, 2023

Robot for oil tank cleaning

UNIV TAIYUAN SCIENCE & TECH0 citations44