HM

Hisashi Masumura

SC Shin-Etsu Handotai Co.: 35 patents #10 of 679Top 2%
FM Fujikoshi Machinery: 4 patents #19 of 85Top 25%
📍 Futtsu, JP: #3 of 136 inventorsTop 3%
Overall (All Time): #98,924 of 4,157,543Top 3%
35
Patents All Time

Issued Patents All Time

Showing 26–35 of 35 patents

Patent #TitleCo-InventorsDate
5827779 Method of manufacturing semiconductor mirror wafers Kiyoshi Suzuki, Hideo Kudo 1998-10-27
5827395 Polishing pad used for polishing silicon wafers and polishing method using the same Kiyoshi Suzuki, Hideo Kudo 1998-10-27
5821167 Method of manufacturing semiconductor mirror wafers Teruaki Fukami, Kiyoshi Suzuki, Hideo Kudo 1998-10-13
5800725 Method of manufacturing semiconductor wafers Tadahiro Kato, Hideo Kudo 1998-09-01
5790252 Method of and apparatus for determining residual damage to wafer edges Hideo Kudo, Shingo Sumie, Hidetoshi Tsunaki, Yuji Hirao, Noritaka Morioka 1998-08-04
5759087 Method for inducing damage for gettering to single crystal silicon wafer Masami Nakano, Hideo Kudo 1998-06-02
5705423 Epitaxial wafer Atsuto Sakata, Hideo Kudo 1998-01-06
5667567 Polishing agent used for polishing silicon wafers and polishing method using the same Kiyoshi Suzuki 1997-09-16
5494862 Method of making semiconductor wafers Tadahiro Kato, Masami Nakano, Sunao Shima 1996-02-27
5447890 Method for production of wafer Tadahiro Kato, Sunao Shima, Masami Nakano, Hideo Kudo 1995-09-05