Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844847 | Method and apparatus for controlling injection molding machines | — | 1989-07-04 |
| 4812540 | Preparation of polymers of monoallylamine and diallylamine derivatives with azo catalyst | Kenji Kageno, Toshio Ueda | 1989-03-14 |