Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363769 | Method for manufacturing thin and flexible ribbon wafer of _semiconductor material and ribbon wafer | Kenichi Arai | 1982-12-14 |
| 4339508 | Method for manufacturing a thin and flexible ribbon of superconductor material | Kenichi Arai | 1982-07-13 |