MH

Masahiro Hiraga

HI Hitachi: 2 patents #622 of 3,771Top 20%
Overall (2004): #51,957 of 270,089Top 20%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6704212 PWM inverter with long carrier wave insertion Teiichi Furukawa, Hiroyuki Tomita, Seiji Ishida, Toshiaki Okuyama 2004-03-09
6693404 AC current detecting device for inverter apparatus and AC current detecting method therefor Junji Kato, Tetsuya Kimura, Teiichi Furukawa 2004-02-17