Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6931172 | Optical switch, optical add/drop apparatus, optical transmission system, and method of producing optical switch | Takahiro Sunaga, Makoto Katayama | 2005-08-16 |
| 6892003 | Variable dispersion compensator and optical transmission system | Makoto Katayama, Toshiaki Okuno, Masayuki Nishimura, Tomomi Sano, Masakazu Shigehara +2 more | 2005-05-10 |
| 6868198 | Optical switch for switching between multiple main light emitters | Takahiro Sunaga, Makoto Katayama, Masato Furukawa, Manabu Shiozaki | 2005-03-15 |