YS

Yasuyuki Sakurada

Overall (All Time): #2,268,987 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5614102 Method for purifying sewage 1997-03-25
5350511 Sewage purification apparatus 1994-09-27