Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822269 | Vent type injection molding machines | Shigeru Fujita | 1989-04-18 |
| 4808355 | Method of changing the resin in an injection molding machine using a nozzle touch plate | Osamu Segawa, Mitsuaki Eshima | 1989-02-28 |