•Associate staff, Baron-Charms International Services, Seattle, USA,
•Lecturer, Tohoku University of Art and Design, Yamagata, Japan,
•Lecturer, Yamagata University, Yamagata, Japan,
•Member of MPEG (ISO/IEC JTC1/SC29/WG11),
•Senior researcher, The Research Institute of Technologies, Toppan Printing Co., Ltd., Japan.
•Connectionist Summer School at CMU, USA,
•Doctoral program in Electrical Engineering, University of Washington, Seattle, USA,
•Master of Science in Bioengineering, Clemson University, Clemson, South Carolina, USA (Rotary Int’l Scholarship),
•Master of Science in Electrical Engineering, Yamagata University, Japan,
•Bachelor of Engineering in Electronics, Yamagata University, Japan,
•Traineeship through IAESTE (the International Association for the Exchange of Students for Technical Experience).