Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366205 | Tone-arm elements | Tsunehiro Tsukagoshi, Shinichi Yokozeki, Sumio Hagiwara, Toshikazu Yoshino, Yasuyuki Arai | 1982-12-28 |
| 4362772 | Vibratory elements for audio equipment | Tsunehiro Tsukagoshi, Shinichi Yokozeki, Sumio Hagiwara, Toshikazu Yoshino, Yasuyuki Arai | 1982-12-07 |
| 4343376 | Vibratory elements for audio equipment | Tsunehiro Tsukagoshi, Shinichi Yokozeki, Sumio Hagiwara, Toshikazu Yoshino, Yasuyuki Arai | 1982-08-10 |