Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6647748 | Device for continuously twisting an optical fiber | — | 2003-11-18 |
| 6543257 | Dehydration and sintering apparatus for porous optical fiber preform | Hisashi Koaizawa, Junichi Takeda, Satoshi Sugiyama, Yoshiyuki Sakamoto | 2003-04-08 |