Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864451 | Flexible disk jacket | Kazuhiko Morita | 1989-09-05 |
| 4807078 | Flexible disk jacket colored within specific munsell ranges | Kazuhiko Morita | 1989-02-21 |
MI
Masakazu Iwasa
Overall (1989): #20,857 of 140,708Top 15%
2
Patents 1989