Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4398804 | Liquid crystal display unit | — | 1983-08-16 |
| 4376537 | Rotary puzzle device | — | 1983-03-15 |
| D267661 | Rotary puzzle | — | 1983-01-18 |
| 4306329 | Self-propelled cleaning device with wireless remote-control | — | 1981-12-22 |
| 4296931 | Projecting-type shooting game apparatus | — | 1981-10-27 |
| 4279417 | Obstacle game machine | — | 1981-07-21 |
| 4268036 | Shooting game apparatus | — | 1981-05-19 |