Inventor

HU JIA-SHENG

TW2 patents

Patents

2 patents

US6942603B1Sep 13, 2005

Control system of resisting and assisting force for a rehabilitation apparatus

TONIC FITNESS TECHNOLOGY INC9 citations70

US6837124B2Jan 4, 2005

Directly-driven power swing rod device without dead points

TONIC FITNESS TECHNOLOGY INC7 citations57