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So Kumazawa

SC Sanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
Overall (All Time): #3,257,111 of 4,157,543Top 80%
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Patent #TitleCo-InventorsDate
D641860 Draft chamber Yasutoshi Okamoto, Fumio Yamada, Akihiro Mochizuki, Yuko Kato 2011-07-19