Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5356684 | Optical recording medium and method of manufacturing thereof | Masaomi Ebe, Yoshihiko Iwama, Hiroshi Sato, Yoshitaka Nonaka | 1994-10-18 |
| 5077120 | Optical disk | Hiroshi Kato, Masaomi Ebe | 1991-12-31 |
| 5039558 | Optical recording medium and method of manufacturing thereof | Kunio Imai, Saburo Aso, Hideo Kudo | 1991-08-13 |
| 4950520 | Optical recording medium and method manufacturing thereof | Kunio Imai, Saburo Aso, Hideo Kudo | 1990-08-21 |
| 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 |
| 4268653 | Process for preparation of a polymeric piezo-electric material and material prepared by said process | Kiyonori Iwama, Tsutomu Iwamoto, Junichi Sako, Yoshihide Higashihata | 1981-05-19 |