Issued Patents 1982
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366205 | Tone-arm elements | Tsunehiro Tsukagoshi, Shinichi Yokozeki, Sumio Hagiwara, Masataka Uchidoi, Toshikazu Yoshino | 1982-12-28 |
| 4362772 | Vibratory elements for audio equipment | Tsunehiro Tsukagoshi, Shinichi Yokozeki, Sumio Hagiwara, Masataka Uchidoi, Toshikazu Yoshino | 1982-12-07 |
| 4352407 | Diaphragms for acoustic instruments and method of producing the same | Tsunehiro Tsukagoshi, Shinichi Yokozeki, Toshikazu Yoshino | 1982-10-05 |
| 4343376 | Vibratory elements for audio equipment | Tsunehiro Tsukagoshi, Shinichi Yokozeki, Sumio Hagiwara, Masataka Uchidoi, Toshikazu Yoshino | 1982-08-10 |
| 4341838 | Molding compositions and diaphragms, arm pipes and head shells molded therefrom | Kunio Imai, Tsunehiro Tsukagoshi, Shinichi Yokozeki, Toshikazu Yoshino | 1982-07-27 |