Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832888 | Method for producing high-density silicon nitride sintered product | Nobuhiro Sato, Haruyuki Ueno, Takashi Hamamatu | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832888 | Method for producing high-density silicon nitride sintered product | Nobuhiro Sato, Haruyuki Ueno, Takashi Hamamatu | 1989-05-23 |