Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863337 | Control system for working machine having boom | Hideaki Mizota, Tuyoshi Aoki | 1989-09-05 |
| 4814495 | Method for the preparation of hydroxybenzoic acid | Tsunenori Sakai, Takaya Ishihara | 1989-03-21 |