Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5302243 | Deinking method | Yoichi Ishibashi, Yoshitaka Miyauchi, Takanobu Shiroishi, Hiromichi Takahashi | 1994-04-12 |
| 5282928 | Deinking composition | Hiromichi Takahashi, Yoichi Ishibashi, Yoshitaka Miyauchi, Takanobu Shiroishi | 1994-02-01 |