Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828460 | Electromagnetic pump type automatic molten-metal supply apparatus | Hirozi Saito, Shoko Kubota | 1989-05-09 |
| 4804036 | Electromagnetic exhaust valve for use in metal casting | — | 1989-02-14 |