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Osamu Katoh

NO Nippon Oil: 1 patents #392 of 773Top 55%
Overall (All Time): #4,019,439 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4533535 Starting pitches for carbon fibers Seiichi Uemura, Shunichi Yamamoto, Takao Hirose, Hiroaki Takashima 1985-08-06