Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5318432 | Apparatus for forming porous preform used to fabricate optical fiber | Takeshi Yagi, Tsuguo Satou, Kazuaki Yoshida | 1994-06-07 |
| 5314520 | Method for manufacturing optical fiber preform | Takeshi Yagi, Tsuguo Satoh, Kazuaki Yoshida | 1994-05-24 |