SI

Seigi Ito

Sumitomo Electric Industries: 3 patents #7,735 of 21,551Top 40%
📍 Yamaga, JP: #6 of 26 inventorsTop 25%
Overall (All Time): #1,609,850 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6556533 Optical pickup device Masaharu Fukakusa, Taiichi Mori, Hiroshi Tanigawa, Haruhiko Kono, Mikio Tomisaki +1 more 2003-04-29
6266314 Optical pickup device Masaharu Fukakusa, Taiichi Mori, Hiroshi Tanigawa, Haruhiko Kono, Mikio Tomisaki +1 more 2001-07-24
6256283 Optical pickup having a common light beam path for passing either of a plurality of kinds of light beams Masaharu Fukakusa, Taiichi Mori, Hiroshi Tanigawa, Haruhiko Kono, Mikio Tomisaki +1 more 2001-07-03