Patent ID: 9283561
Filing Date: 2016-03-15
CPC Classification: B01J,B01L,F16K,G01N,Y10T

Claim Text:
1. A liquid channel device including a base plate in which a liquid channel through which a liquid flows and one or more liquid chambers for holding the liquid are formed to at least one surface thereof, and a cover plate which is laminated to the channel formation surface in which the liquid channel and the liquid chambers of the base plate are formed; wherein the liquid channel device further includes an opening section for opening a portion of the liquid channel from a closed mode; the opening section includes a stopper which is disposed to a portion of the liquid channel, and undergoes plastic deformation by means of external pressing on the cover plate or a floor of the liquid channel, thereby placing the liquid channel in an open mode, and the stopper is formed by coating a stopper forming material for forming the stopper to a portion of the liquid channel, and the stopper forming material includes hollow beads which are deformed and broken by subjecting to pressing.