YW

Yasuhito Wakabayashi

SD Showa Denko: 1 patents #231 of 593Top 40%
Overall (All Time): #3,572,880 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6190451 Admixture of cement composition Sumio Soya, Makoto Saito, Tohru Yamamoto 2001-02-20