Inventor
DOHI KYOUSUKE
JP2 patents
Patents
2 patentsUS8020574B2Sep 20, 2011
Method for closing fluid passage, and water hammerless valve device and water hammerless closing device used in the method
FUJIKIN KK8 citations83
US7080658B2Jul 25, 2006
Method for closing fluid passage, and water hammerless valve device and water hammerless closing device used in the method
FUJIKIN KK13 citations83