Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816915 | Two-picture television receiver | Kiyoshi Imai | 1989-03-28 |
| 4796089 | Television receiver display apparatus having multi-image display capability | Kiyoshi Imai, Makoto Ishida | 1989-01-03 |