KS

Katsumasa Shimmei

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #3,495,795 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6820333 Method of converting storage pumps into reversible pump-turbines Kazuo Niikura 2004-11-23