AS

Atsushi Shinnaka

EC Eisai Chemical Co.: 1 patents #16 of 27Top 60%
📍 Ibaraki, JP: #4,343 of 6,779 inventorsTop 65%
Overall (All Time): #3,897,500 of 4,157,543Top 95%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4906411 Process for producing 2-methyl-1,4-naphthoquinone Yukio Narabu 1990-03-06