Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6542680 | Optical fiber preform | Yukio Koumura, Masahide Kuwabara | 2003-04-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6542680 | Optical fiber preform | Yukio Koumura, Masahide Kuwabara | 2003-04-01 |