Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6801683 | Optical module, light divider/insertor and light transmission device | Makoto Katayama, Hiroshi Suganuma, Masayuki Nishimura | 2004-10-05 |
| 6782155 | Optical switch | Makoto Katayama, Manabu Shiozaki, Masayuki Nishimura | 2004-08-24 |
| 6782185 | Optical variable attenuator and optical module | Makoto Katayama, Hiroshi Suganuma, Masayuki Nishimura | 2004-08-24 |