Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7839908 | Mode control waveguide laser device | Takayuki Yanagisawa, Yoshihito Hirano, Masao Imaki, Kiyohide Sakai, Yasuharu Koyata | 2010-11-23 |
| 7295290 | Coherent laser radar | Takayuki Yanagisawa, Yoshihito Hirano, Shumpei Kameyama, Toshiyuki Ando | 2007-11-13 |
| 7239654 | Wave length plate, wavelength filter and wavelength monitor | Masao Imaki, Youhei Mikami, Yoshihito Hirano, Makoto Satou, Kenji Masuda +2 more | 2007-07-03 |