Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5326733 | Silicon nitride sintered product excellent in wear resistance | Ken Mizuno | 1994-07-05 |
| 5286684 | Aluminum oxide-based sintered object and process for producing the same | Jun Otsuka, Satoshi Iio | 1994-02-15 |