Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9758901 | Vitreous silica crucible for pulling of silicon single crystal and method for manufacturing the same | Toshiaki Sudo, Ken Kitahara, Akihiro Aiba, Kazushi Ousyuya, Fumie Yoshida +2 more | 2017-09-12 |
| 9637405 | Evaluation method of suitable silica powder in manufacturing vitreous silica crucible for pulling of silicon single crystal | Toshiaki Sudo, Tadahiro Sato, Ken Kitahara | 2017-05-02 |