Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5006940 | Automatic changer for digital audio cassette tape player | Tamotsu Harada | 1991-04-09 |
| 4974102 | Automatic changer for digital audio cassette tape player | Tamotsu Harada | 1990-11-27 |