Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883429 | Electronic device packaging structure | Kouzou Uekido | 1989-11-28 |
| 4872314 | Superconducting coil refrigerating method and superconducting apparatus | Katuhiko Asano | 1989-10-10 |
| 4800133 | Aluminum alloy foil for cathode of electrolytic capacitors | Kozo Arai, Syozo Umetsu | 1989-01-24 |