Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6827883 | Optical fiber preform and the method of producing the same | Yukio Koumura, Yasuhiro Naka | 2004-12-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6827883 | Optical fiber preform and the method of producing the same | Yukio Koumura, Yasuhiro Naka | 2004-12-07 |