Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4979685 | Apparatus for crushing hafnium crystal bar | Jiro Yamada | 1990-12-25 |
| 4951881 | Process for crushing hafnium crystal bar | Jiro Yamada | 1990-08-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4979685 | Apparatus for crushing hafnium crystal bar | Jiro Yamada | 1990-12-25 |
| 4951881 | Process for crushing hafnium crystal bar | Jiro Yamada | 1990-08-28 |