Nov 2006 - present:      Professor, Director of Institute of Physical Electronics and Devices, Xi’an Jiaotong University, China. Research and teaching of flat panel display technology, secondary electron emission technology and device, diamond semiconductor materials and devices, nano thin films and devices.

Sept 2004 - Nov 2006:    Professor, Inst. of Physical Electronics and Devices, Xi’an Jiaotong University , China . Research and teaching of flat panel display technology, vacuum electronics, image processing.

Nov 2002 - Aug 2004:    Senior Development Engineer, Japan Branch of Terarecon, Inc. (CA, USA )

R&D of Cone Beam CT system for industrial non-destructive inspection.

May 2001 - Nov 2002:     Senior Engineer,  O&E Co., Ltd,   Japan .  Development of image measurement

and monitoring systems, focusing on both hardware and software.

June 1991 - Sept 1997:    Lecturer, Associate Professor (from 1996), Inst. of Physical Electronics and Devices, Xi'an Jiaotong University , China . R&D of the magnetic deflection systems used in high-resolution CDT (color display tube) and CPT (color picture tube).

Dec 1992 - Dec 1994:    Engineer, Manager of Technology Dept., Shaanxi Caitong Electron Co., Ltd, China . Be in charge of development and manufacture technology of DY (deflection yokes) used in high-resolution CDT and CPT, partially participating the management of the manufacture line for DY.

July 1986 -Aug 1988:    Assistant Engineering, Xi'an High Voltage Apparatus Research Institute, China. R&D of high voltage vacuum breaker.