Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4986895 | Process for treating coal tar or coal tar pitch | Makihiko Mori, Yoshiteru Nakagawa, Yasunori Goda, Toyohiro Maeda | 1991-01-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4986895 | Process for treating coal tar or coal tar pitch | Makihiko Mori, Yoshiteru Nakagawa, Yasunori Goda, Toyohiro Maeda | 1991-01-22 |