AS

Athuro Sekiyama

AK Asahi Kogaku Kogyo K.K.: 1 patents #76 of 180Top 45%
Overall (All Time): #3,835,241 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5253111 Cemented plastic lens Toru Chiba, Mitsuo Gacho 1993-10-12