Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8582335 | Inverter apparatus | Ryuta Hasegawa, Hiroshi Mochikawa, Masami Hirata | 2013-11-12 |
| 5057963 | Opposite phase detecting device for alternating current electrical equipment | — | 1991-10-15 |
| 4489372 | Optical gate signal generating apparatus and thyristor converter apparatus including the same | Tadashi Takahashi | 1984-12-18 |