Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5302243 | Deinking method | Yoichi Ishibashi, Yoshinao Kono, Yoshitaka Miyauchi, Hiromichi Takahashi | 1994-04-12 |
| 5288369 | Deinking method and deinking composition | Yoichi Ishibashi, Yoshitaka Miyauchi, Koji Hamaguchi, Hideaki Urushibata, Hiromichi Takahashi | 1994-02-22 |
| 5282928 | Deinking composition | Hiromichi Takahashi, Yoichi Ishibashi, Yoshitaka Miyauchi, Yoshinao Kono | 1994-02-01 |