WT

Wataru Tohoma

SC Sumitomo Chemical: 1 patents #2,469 of 4,033Top 65%
Overall (All Time): #4,084,101 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4251651 Amphoteric polyelectrolyte Shigenao Kawakami, Shigeru Ura, Naoyoshi Jinno, Shin-ichi Isaoka 1981-02-17