Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641663 | Silica crucible with inner layer crystallizer and method | Katsuhiko Kemmochi, Paul Spencer | 2003-11-04 |
| 6510707 | Methods for making silica crucibles | Katsuhiko Kemmochi, Takayuki Togawa, Paul Spencer | 2003-01-28 |