Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5273791 | Method of improving the corrosion resistance of a metal | Masatsugu Oshima | 1993-12-28 |
| 4610967 | Zirconia porcelain and method of manufacturing the same | Minoru Matsui | 1986-09-09 |