Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7275003 | Harmonic diagnosing method for electric facility | — | 2007-09-25 |
| 4662225 | Seismic detector | Takashi Tokuyama | 1987-05-05 |
| 4554459 | Monitoring system for a predetermined field of view | Suteo Tsutsumi | 1985-11-19 |
| 4520343 | Lift control system | Junichi Hirota | 1985-05-28 |