Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842801 | Method of controlling switching from pressure holding to metering and kneading | Masao Kamiguchi | 1989-06-27 |
| 4812268 | Suckback method and apparatus in an injection molding machine | Masao Kamiguchi | 1989-03-14 |