Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847799 | Keyboard apparatus having separate working areas with thumb-operated shifting of key functions | Masasuke Morita, Toshio Shimada | 1989-07-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847799 | Keyboard apparatus having separate working areas with thumb-operated shifting of key functions | Masasuke Morita, Toshio Shimada | 1989-07-11 |