Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889667 | Method for supervision of injection molding by use of waveform of internal die pressure | Tatsuo Miyagi | 1989-12-26 |
| 4797236 | Ultrahigh speed injection molding method | — | 1989-01-10 |