Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8040781 | Wavelength selecting wavelength plate and optical head device using it | Yukihiro Tao, Hiromasa Sato, Atsushi Koyanagi | 2011-10-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8040781 | Wavelength selecting wavelength plate and optical head device using it | Yukihiro Tao, Hiromasa Sato, Atsushi Koyanagi | 2011-10-18 |