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HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #3,763,593 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5387545 Impurity diffusion method Yukihiro Kiyota, Tohru Nakamura, Takahiro Onai 1995-02-07