Short-Wavelength Semiconductor Laser Diode" sponsored by JST until 1999. While he was working as a Project Leader of "Research and Development of GaN-based Short-Wavelength Semiconductor Laser Diode," he started in 1995 and until 1996 as a Visiting Professor of the Research Center for Interface Quantum Electronics at Hokkaido University. In 1996 he was a Project Leader of the Japan Society for the Promotion of Science(JSPS)’s "Research for the Future" program" up to 2001. From 1996 he started as a Project Leader of "High-Tech Research Center for Nitride Semiconductors" at Meijo University, sponsored by MEXT until 2004. From 2003 up to 2006 he was the Chairman of "R&D Strategic Committee on the Wireless Devices Based on Nitride Semiconductors" sponsored by METI.