Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6671191 | Electric power conversion apparatus | Narumi Yanagisawa, Hiroshi Sakaba | 2003-12-30 |
| 6611442 | Controlled rectifier equipment with sinusoidal waveform supply current | Hiroshi Sakaba | 2003-08-26 |