Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5080945 | Large-capacity-memory disk | Takeshi Moriwaki | 1992-01-14 |
| 4764331 | Large diameter optical disk substrate made of polycarbonate | Yoshio Onizawa, Shuzo Iyoshi | 1988-08-16 |
| 4393169 | Moldable resin compositions containing polycarbonate styrene polymer and three phase graft polymer | Takeshi Moriwaki | 1983-07-12 |