SY

Seiya Yamashita

IJ Ishikawajima-Harima Jukogyo: 2 patents #81 of 494Top 20%
Overall (All Time): #2,220,440 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6487982 Anti-rolling structure for box-type floating body Toru Takahashi, Yuji Awashima 2002-12-03
4987846 Floating structure Haruo Sasaki 1991-01-29