AT

Akira Tonegawa

NG Nihon Shinku Gijutsu: 1 patents #54 of 128Top 45%
📍 Hadano, JP: #606 of 1,025 inventorsTop 60%
Overall (All Time): #3,894,243 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4894546 Hollow cathode ion sources Ryota Fukui, Kenichi Takagi, Riichi Kikuchi, Kazuo Takayama 1990-01-16