MK

Masafumi Kubota

Sumitomo Electric Industries: 2 patents #124 of 1,127Top 15%
Overall (1989): #20,756 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4845048 Method of fabricating semiconductor device Tokuhiko Tamaki 1989-07-04
4837172 Method for removing impurities existing in semiconductor substrate Bunji Mizuno 1989-06-06