Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7570502 | Inverter apparatus comprising switching elements | Yoshitaka Sugawara, Katsunori Asano, Mitsuru Matsukawa, Toshihiko Shikata | 2009-08-04 |
| 6545885 | Isolated operation prevention device for distributed power supply and interharmonic detection method | Shoji Nishimura, Masakuni Asano, Noriaki Tokuda, Tokuo Emura, Yoshihiro Hada | 2003-04-08 |
| 6326796 | Harmonic measuring method and a current injection device for harmonic measurement | Isao Koda, Masakazu Tsukamoto, Shoji Nishimura, Katsuhiko Uno, Yasuyuki Natsuda | 2001-12-04 |
| 6114859 | Harmonic characteristic measuring method and harmonic characteristic measuring apparatus | Isao Koda, Masakazu Tsukamoto, Yasuhiro Fuwa, Shoji Nishimura, Yasuyuki Natsuda | 2000-09-05 |