Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7993454 | Surface modified quartz glass crucible, and its modification process | Yoshiyuki Tsuji | 2011-08-09 |
| 7955511 | Silica glass crucible | Yoshiyuki Tsuji | 2011-06-07 |
| 7776155 | Surface modified quartz glass crucible and its modification process | Yoshiyuki Tsuji | 2010-08-17 |
| 7695787 | Silica glass crucible | Yoshiyuki Tsuji | 2010-04-13 |
| 6712901 | Surface modification process of quartz glass crucible | Yoshiyuki Tsuji | 2004-03-30 |