IY

Ikuo Yamato

HI Hitachi: 2 patents #336 of 2,935Top 15%
Overall (1989): #25,239 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4878163 Pulse width modulated inverter with high-to-low frequency output converter Norikazu Tokunaga, Yasuo Matsuda, Hisao Amano 1989-10-31
4855887 Current and frequency converter having means to reduce switching losses Norikazu Tokunaga, Yasuo Matsuda, Hisao Amano 1989-08-08