Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7978319 | Optical switching method and optical switch | Shigeki Watanabe, Fumio Futami | 2011-07-12 |
| 7953322 | Optical switch and optical switch control method | Shigeki Watanabe, Fumio Futami | 2011-05-31 |