KS

Kiyoshi Sumi

TS Tokuyama Soda: 1 patents #56 of 151Top 40%
Overall (All Time): #4,002,446 of 4,157,543Top 100%
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Patent #TitleCo-InventorsDate
4613643 Porous sheet Shunichi Nakamura, Kenji Okamura, Shingo Kaneko 1986-09-23