Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6808744 | Method for preparing and regenerating a composite crucible | Masanori Fukui, Ken-ichi Hiroshima | 2004-10-26 |
| 6712901 | Surface modification process of quartz glass crucible | Toshio Tsujimoto | 2004-03-30 |