Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5354899 | Production process of 1,4,5,8-naphthalene tetracarboxylic acid | Toshio Sato, Kyoichi Takeda | 1994-10-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5354899 | Production process of 1,4,5,8-naphthalene tetracarboxylic acid | Toshio Sato, Kyoichi Takeda | 1994-10-11 |