Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885048 | Laminator | Sigeo Sumi, Fumio Hamamura, Ichio Fukuda, Noriyasu Sawada | 1989-12-05 |
| 4867837 | Film peeler | Sigeo Sumi, Fumio Hamamura | 1989-09-19 |
| 4844772 | Laminator | Sigeo Sumi, Fumio Hamamura, Ichio Fukuda, Noriyasu Sawada | 1989-07-04 |