Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4459276 | Yellow iron oxide pigment and method for manufacture thereof | Takashi Asai, Kazuaki Ado | 1984-07-10 |
| 4233283 | Method for manufacture of iron oxide flakes | Kazuaki Ado, Takashi Asai | 1980-11-11 |