Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5901005 | Magnetic recording and reproducing apparatus having a drum preamplifier with improved S/N and dynamic range | Teruyuki Yoshida, Hideki Arai | 1999-05-04 |
| 5636074 | Recording signal amplifier apparatus | Teruyuki Yoshida | 1997-06-03 |
| 5223990 | Data recording apparatus | Teruyuki Yoshida, Hideki Arai | 1993-06-29 |