Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8175273 | Quantum cryptography communication method, quantum cryptography communication apparatus, and quantum cryptography communication system | Yohei Kawamoto, Takuya Hirano | 2012-05-08 |
| 6495822 | Atomic beam generating method and device | Takuya Hirano, Yoshio Torii, Kenichi Ito | 2002-12-17 |
| 4276629 | Solar battery timepiece | Osamu Matsumura, Yutaka Kato, Tsunetoshi Sekiguchi | 1981-06-30 |
| 4268913 | Electronic calculator watch | Tadahiko Nakagiri, Kunihiro Daigo, Toshiaki Oguchi, Minoru Natori, Toshikazu Hatuse +6 more | 1981-05-19 |
| 4198809 | Construction of an analogue crystal wrist watch | Kenzi Miyasaka, Kotaro Takahashi | 1980-04-22 |