Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6463201 | Light amplification optical fiber and light amplifier using the same | Yoshio Tashiro, Takeshi Yagi | 2002-10-08 |
| 6404967 | Optical fiber and optical transmission line using the same | Shinichi Arai, Ryuichi Sugizaki | 2002-06-11 |