Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643430 | Temperature control system for a grating | Takuya Ohira, Masakazu Takabayashi, Kiichi Yoshiara, Shigeru Matsuno, Hajime Takeya +1 more | 2003-11-04 |
| 6522809 | Waveguide grating device and method of controlling Bragg wavelength of waveguide grating | Masakazu Takabayashi, Kiichi Yoshiara, Junichiro Hoshizaki, Takeyuki Maegawa, Hajime Takeya +3 more | 2003-02-18 |