YW

Youchang Wang

DC Daiken Chemical Co.: 1 patents #20 of 31Top 65%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #3,361,939 of 4,157,543Top 85%
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7405178 Catalysts for manufacturing carbon substances Xu Li, Takashi Okawa, Akio Harada, Yoshikazu Nakayama 2008-07-29