HS

Hirofumi Simazoe

DK Denki Kagaku Kogyo: 1 patents #291 of 655Top 45%
Overall (All Time): #3,702,368 of 4,157,543Top 90%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5833746 Silica filler and method for its production Mitsuyoshi Iwasa, Yukio Sakaguchi 1998-11-10