SY

Sei Yamasaki

HC Hiraoka & Co.: 1 patents #7 of 15Top 50%
OG Osaka Prefectural Government: 1 patents #18 of 63Top 30%
Overall (All Time): #3,399,501 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7287930 Vehicle impact attenuator Takamasa Nakajima 2007-10-30