Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823125 | Optical fiber base material, its manufacturing method and optical fiber | Yukio Koumura | 2004-11-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823125 | Optical fiber base material, its manufacturing method and optical fiber | Yukio Koumura | 2004-11-23 |