Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5235475 | Digital audio tape recorder | Hiromu Tokumatsu, Mitsuru Shinohara | 1993-08-10 |
| 5222001 | Signal processing circuit of digital audio tape recorder | Hiromu Tokumatsu | 1993-06-22 |