KW

Keizou Wase

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #4,101,518 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4303473 Torus type vacuum shell Masato Nagao, Yoshiyasu Ito, Yoshiaki Kazawa, Takamasa Fujinaga 1981-12-01