Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656564 | Zirconia-based sinter, process for producing the same, gringing part material, and bracket material for dental correction | Susumu Nakayama, Tadahiro Mino, Nobuo Ayuzawa | 1997-08-12 |