KO

Kazumasa Ookuma

HH Hitachi High-Technologies: 1 patents #674 of 1,200Top 60%
Overall (All Time): #2,833,842 of 4,157,543Top 70%
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Patent #TitleCo-InventorsDate
10872779 Plasma etching method and plasma etching apparatus Nobuya Miyoshi, Hiroyuki Kobayashi, Kazunori Shinoda, Kohei Kawamura, Yutaka Kouzuma +1 more 2020-12-22