YK

Yuichiro Koyama

PE Pennwalt: 1 patents #119 of 288Top 45%
Overall (All Time): #3,988,773 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4564709 Process for the production of dialkyl-trisulfides Hiroshi Nakazawa, Toshiaki Yamashita, Hitoshi Moriyama 1986-01-14