KH

Keiko Hata

AK Asahi Kasei Kabushiki Kaisha: 1 patents #556 of 1,220Top 50%
Overall (All Time): #3,520,975 of 4,157,543Top 85%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6610815 Polyamic acid ester Yoko Tanizaki, Yoshio Matsuoka 2003-08-26