NF

Narumi Fukumoto

DA Daihen: 2 patents #124 of 305Top 45%
Overall (All Time): #2,301,023 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5220151 Power source apparatus for an alternating-current arc welding capable of supplying an alternating-current welding current having any waveform Kikuo Terayama, Hirokazu Ioroi, Hiroyuki Ishii 1993-06-15
5200887 Power supply unit for arc processing Hirokazu Ioroi, Yoshihiro Fukuju, Masahi Horii, Kikuo Terayama 1993-04-06