1.Research and development of AlGaInP visible laser diodes (1991 – 1994)
2.Development of functional optical fiber demultiplexers (1994 – 1998)
3.Applications of laser diode injection locking (1995 – 2000)
4.Fundamental research on chaotic microlasers (1995 – Present)
5.Selective excitation of resonator modes in two-dimensional laser cavities (2000 – Present)
6. Research result report of KAKENHI Project (in Japanese):
Design and fabrication of optical coupling system between 2-D laser diodes and optical fibers (2007 – 2009)
7. Research result report of KAKENHI Project (in Japanese):
Study on beam shaping of laser diodes using Lloyd’s mirror interference (2010 – 2013)