Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8064135 | Polarization element | Toshiaki Sonehara, Seiichi Yokoyama | 2011-11-22 |
| 7961394 | Polarizing glass, optical isolator, and method for producing polarizing glass | Yoshitaka Yoneda, Seiichi Yokoyama | 2011-06-14 |