Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5138602 | Sound record playing apparatus having shock responsive weight member to actuate the same | Eishi Koike | 1992-08-11 |
| 5103442 | Simplified acoustic playback apparatus | Eishi Koike | 1992-04-07 |