KH

Keizou Hirai

HC Hitachi Chemical Company: 1 patents #49 of 170Top 30%
Overall (2011): #246,811 of 364,097Top 70%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8002860 CMP abrasive, method for polishing substrate and method for manufacturing semiconductor device using the same, and additive for CMP abrasive Naoyuki Koyama, Kouji Haga, Masato Yoshida, Toranosuke Ashizawa, Youiti Machii 2011-08-23