YK

Yoshikazu Kumahara

JE Japan Energy: 1 patents #85 of 240Top 40%
NC Nikko-Materials Co.: 1 patents #27 of 74Top 40%
📍 Ibaraki, JP: #3,280 of 6,779 inventorsTop 50%
Overall (All Time): #2,219,083 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6464847 Sputtering target Keiichi Ishizuka 2002-10-15
6106681 ITO sputtering target and its cleaning method Toru Saito, Katsuya Kuboyama 2000-08-22