KN

Katsuhisa Numata

TK Toyo Boseki Kabushiki Kaisha: 1 patents #541 of 1,085Top 50%
Overall (All Time): #3,962,102 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4781834 Membrane separation apparatus Masaaki Sekino, Tetsuo Ukai 1988-11-01