KK

Kiyoshi Koutou

AC Asahi Kasei Kogyo Co.: 1 patents #565 of 1,395Top 45%
Overall (All Time): #3,828,965 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5229446 Polystyrene resin composition having improved stiffness Masashi Sakamoto, Akifumi Tohara 1993-07-20