Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6219302 | Time signal repeater and time correction system using the same | Masahiro Tanoguchi, Kenichi Nemoto, Shinya Yoshida, Akinari Takada, Kenji Fujita +1 more | 2001-04-17 |
| 4526478 | Electronic sound generating circuit for generation bell toll | — | 1985-07-02 |
| 4481852 | Sound generating circuit for timepiece | Hiroshi Miyasaka, Katsuhiko Takebe | 1984-11-13 |