YI

Yutaka Isawa

HZ Hitachi Zosen: 1 patents #216 of 531Top 45%
Overall (All Time): #3,538,035 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6357390 Electric screen device Hidehiko Maehata, Masanori Tsukahara, Daisuke Tamakoshi, Tomohiko Suzaki 2002-03-19