Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5346543 | Deinking agent for reclaiming waste paper | Yoshie Hirakouchi, Ikuo Adachi | 1994-09-13 |
| 5342532 | Lubricating oil composition comprising alkylnaphthalene and benzothiophene | Mitsuhiko Takei, Toshio Yoshida, Koji Masamizu | 1994-08-30 |