Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7383696 | Silica glass crucible with bubble-free and reduced bubble growth wall | Katsuhiko Kemmochi, Yasuo Ohama | 2008-06-10 |
| 7118789 | Silica glass crucible | Katsuhiko Kemmochi, Paul Spencer | 2006-10-10 |
| 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 |
| 6143073 | Methods and apparatus for minimizing white point defects in quartz glass crucibles | Marc A. Christman | 2000-11-07 |