IY

Isao Yokotsuka

SK Showa Shell Sekiyu K.K.: 1 patents #27 of 82Top 35%
Overall (All Time): #3,735,448 of 4,157,543Top 90%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5488266 Electro-luminescence device Masaaki Aoki, Yoshihiro Ogata 1996-01-30