Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8567217 | Optical fiber preform and manufacturing method therefor | Naritoshi Yamada | 2013-10-29 |
| 8375749 | Method for fabricating porous silica preform | Kentaro Ichii, Naritoshi Yamada, Koichi Harada | 2013-02-19 |
| 7647792 | Method for fabricating porous silica preform | Kentaro Ichii, Naritoshi Yamada, Koichi Harada | 2010-01-19 |