Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6701752 | Synthesized silica glass optical member and method for manufacturing the same | Nobuyasu Mantoku, Shinji Makikawa, Seiki Ejima | 2004-03-09 |
| 6681074 | Method for producing base material for optical fiber having deformed first clad, base material for optical fiber and optical fiber | Nobuyasu Mantoku, Shinji Makikawa, Seiki Ejima | 2004-01-20 |