Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889580 | Double facer | Noriyasu Haraguchi | 1989-12-26 |
| 4846778 | Slitter scorer including a head exchanging device | Tadashi Hirakawa, Yukio Oku | 1989-07-11 |
| 4843933 | Apparatus for determining positions of heads | Yukio Oku | 1989-07-04 |