Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5348639 | Surface treatment for iron-based permanent magnet including rare-earth element | — | 1994-09-20 |
| 5332488 | Surface treatment for iron-based permanent magnet including rare-earth element | — | 1994-07-26 |
| 5286366 | Surface treatment for iron-based permanent magnet including rare-earth element | — | 1994-02-15 |