Foreword. - Tetsu Kachi (IEICE Trans. Electron., 2012)

Current status of GaN power devices. - Tetsu Kachi (IEICE Electron. Express, 2013)

Process Technologies for GaN High Voltage Devices. - Tetsu Kachi; Tetsuo Narita; Hideki Sakurai; Jun Suda (DRC, 2019)

Comparison of body diode switching characteristics of 650V power devices. - Yoshiyuki Hattori; Tetsu Kachi (IEICE Electron. Express, 2024)

Comparison of switching characteristics of 650 V power devices using a double pulse circuit. - Yoshiyuki Hattori; Tetsu Kachi (IEICE Electron. Express, 2025)