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Osamu Hamakawa

KC Kanken Techno Co.: 1 patents #5 of 19Top 30%
Overall (All Time): #2,883,958 of 4,157,543Top 70%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9937467 Exhaust gas processing device Hiroaki Kaneshiro, Hideki Okamoto, Shunsuke Yanai, Hiroshi Imamura 2018-04-10