Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5439855 | Silicon nitride ceramics containing a dispersed pentamolybdenum trisilicide phase | — | 1995-08-08 |
| 5094986 | Wear resistant ceramic with a high alpha-content silicon nitride phase | Roger Lee Ken Matsumoto | 1992-03-10 |
| 5023214 | Silicon nitride ceramics containing a metal silicide phase | Roger Lee Ken Matsumoto | 1991-06-11 |