YS

Yasutomo Seki

NK Nippon Kogaku K.K.: 1 patents #221 of 382Top 60%
📍 Kamakura, JP: #813 of 1,212 inventorsTop 70%
Overall (All Time): #4,015,674 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4519686 Focusing screen of a camera Toshio Akiyama, Norio Nakabayashi, Yutaka Iizuka 1985-05-28