YS

Yasuomi Sasai

TC Toyo Contact Lens Co.: 1 patents #17 of 29Top 60%
Overall (All Time): #3,952,082 of 4,157,543Top 100%
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Patent #TitleCo-InventorsDate
4745158 Highly water-absorptive optical material Tatsutoshi Nakashima, Nobuyuki Toyoshima 1988-05-17