President of the Thai-Korea Natural Phellinus Mushroom Research Center

Professor and Curator, Entomopathogenic Fungal Culture Collection, Kangwon NationalUniversity

Co-founder, Thai-Korea Natural Phellinus Mushroom Research Center

Dept. of Physiology, College of Medicine, HallymUniversity

School of Biological Science, The University of Hong Kong

Professor Emeritus, Osaka University

Deputy Director (Academic Affair), UNISERV Chiang Mai University

Lecturer, Faculty of Pharmacy, Chiang Mai University