SK

Shigeo Kumabe

MM Mitsubishi Materials: 3 patents #352 of 1,543Top 25%
MS Mitsubishi Materials Silicon: 2 patents #21 of 116Top 20%
Overall (All Time): #1,636,060 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5989105 Method and apparatus for polishing chamfers of semiconductor wafers Akira Kawakawaguchi, Shigeru Kimura, Akihito Yanoo, Masao Takada, Shoji Tsuruta 1999-11-23
5976954 Method and apparatus for cleaning and separating wafers bonded to a fixing member Shigeru Kimura 1999-11-02
5618227 Apparatus for polishing wafer Yukio Tsutsumi, Keisuke Takahashi 1997-04-08