KO

Keiichi Ozuka

NC Nippon Tungsten Co.: 1 patents #45 of 139Top 35%
Overall (All Time): #3,111,647 of 4,157,543Top 75%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8758652 Tungsten cathode material Akira Matsuo, Yasutsugu Ueno, Keiji Hara, Shuichi Teramoto 2014-06-24