Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6931172 | Optical switch, optical add/drop apparatus, optical transmission system, and method of producing optical switch | Makoto Katayama, Tomohiko Kanie | 2005-08-16 |
| 6868198 | Optical switch for switching between multiple main light emitters | Makoto Katayama, Tomohiko Kanie, Masato Furukawa, Manabu Shiozaki | 2005-03-15 |