YS

Yasuyoshi Sawaguri

SC Sumitomo Chemical: 2 patents #1,792 of 4,033Top 45%
Overall (All Time): #2,249,539 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5906738 Apparatus and method for removing impurities from aqueous hydrogen peroxide Akira Morisaki, Yoji Matsuda 1999-05-25
5200166 Purification of hydrogen peroxide solution Shujiro Shiga, Koji Kabasawa, Tatsuya Momobayashi 1993-04-06