Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851207 | Process for producing an aluminum nitride powder | Hachiro Ichikawa, Masanori Oguni, Hazuo Horiba, Kenichi Sakamoto, Mikio Kanehara | 1989-07-25 |
| 4801331 | Nail lacquer remover composition | — | 1989-01-31 |