Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496302 | Optical amplifier | — | 2002-12-17 |
| 6442309 | Optical amplifier | — | 2002-08-27 |
| 6417487 | Laser beam machining head | Yasumi Nagura, Michisuke Nayama, Takashi Ishide, Yoshio Hashimoto, Koji Okimura | 2002-07-09 |