Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9797063 | Vitreous silica crucible | Toshiaki Sudo, Hiroshi Kishi | 2017-10-24 |
| 9719188 | Method of manufacturing a vitreous silica crucible having a transparent layer, bubble-containing layers, and a semi-transparent layer in its wall | Toshiaki Sudo, Hiroshi Kishi | 2017-08-01 |