SY

Seiji Yokogawa

Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
Overall (All Time): #2,235,172 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6029388 Light-emitting fishing lure Isamu Kawata, Junichi Matsumoto 2000-02-29
4401328 Electrically operated fishline tier Kenichi Yamada, Shigehiko Fujita, Kiyoshi Takenaka, Koichi Tanoue 1983-08-30