HA

Hisakazu Asai

WC Waterworks Technology Development Organization Co.: 2 patents #15 of 35Top 45%
Overall (All Time): #2,026,740 of 4,157,543Top 50%
2
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Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9004090 Sluice valve for operations — 2015-04-14
7819384 Gate valve device Kiyoharu Nakano, Haruhiko Shimizu 2010-10-26