YT

Yutaka Tagawa

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #3,310,637 of 4,157,543Top 80%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7840804 Attribute certificate validation method and device Mitsuhiro Oikawa 2010-11-23