YS

Yukihiro Sawayanagi

TC Tokyo Ohka Kogyo Co.: 1 patents #437 of 684Top 65%
Overall (All Time): #3,436,226 of 4,157,543Top 85%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7147984 Positive-working chemical-amplification photoresist composition Hiroto Yukawa, Katsumi Oomori, Ryusuke Uchida 2006-12-12