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Ryoken OZAWA

SC Shin-Etsu Chemical Co.: 1 patents #1,340 of 2,176Top 65%
📍 Joetsu, JP: #178 of 239 inventorsTop 75%
Overall (All Time): #2,816,451 of 4,157,543Top 70%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10782609 Photomask blank and photomask Takuro Kosaka, Yukio Inazuki 2020-09-22