Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4526477 | Piezoelectric buzzer for wrist watches | — | 1985-07-02 |
| 4520237 | Electrodynamic speaker | — | 1985-05-28 |
| 4445113 | Small type acoustic device | Shigeo Mori, Yoshiaki Hara, Ichiro Horikoshi, Susumu Fujita | 1984-04-24 |
| 4389123 | Electronic alarm watch | Ichiro Horikoshi, Yoshiaki Hara, Susumu Fujita, Osamu Ide | 1983-06-21 |
| 4386244 | Electromagnetic transducer | Shizuo Funayama | 1983-05-31 |
| 4358642 | Electro-magnetic type electric acoustic transducer | Ichiro Horikoshi, Shigeo Mori, Yoshiaki Hara, Susumu Fujita | 1982-11-09 |
| 4216650 | Alarm wristwatch | Yoshiaki Hara, Shigeo Mori, Ichiro Horikoshi, Soya Takahasai | 1980-08-12 |
| 4205517 | Alarm electronic timepiece | Takuro Fukuichi | 1980-06-03 |
| 4197697 | Alarm watch | Shigeo Mori, Yoshiaki Hara, Ichiro Horikoshi, Souya Takahashi | 1980-04-15 |