Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702519 | Flaky aluminum oxide and pearlescent pigment, and production thereof | Tan Ming Shau, Jun Sugahara | 1997-12-30 |
| 5688314 | Phosphoric acid metal compound-containing pearl pigment | Atuko Nishimagi, Masahiko Yazawai | 1997-11-18 |