Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4631109 | Single facer | Tadashi Hirakawa, Kiyomitsu Yoshikawa, Hiroaki Sasashige | 1986-12-23 |
| 4627831 | Single facer | Tadashi Hirakawa, Kiyomitsu Yoshikawa, Hiroaki Sasashige | 1986-12-09 |