AT

Akemi Tanaka

Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Overall (All Time): #3,895,946 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4900890 Electric discharge machining method and apparatus for machining a microshaft Takeshi Masaki, Takeshi Mizutani, Katsutoshi Yonemaochi 1990-02-13