YS

Yutaka Saisho

DY Dynic: 1 patents #11 of 67Top 20%
Overall (All Time): #3,820,530 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5198294 Composite air-filtering material Takuichiro Masuda, Norio Umezu 1993-03-30