Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887202 | Input-output control method in a virtual machine system | Hidenori Umeno | 1989-12-12 |
| 4817597 | Self-contained closed-circuit oxygen-generating breathing apparatus | — | 1989-04-04 |
| 4809330 | Encoder capable of removing interaction between adjacent frames | Naoki Matsumura | 1989-02-28 |