Seiko Epson Corporation

Takafumi Koda

Isamu Togashi

Taiki Hanagami

There is provided a flow path member including a flow-path member main body which is provided with a liquid supplying path through which liquid is supplied to a head main body that ejects liquid and an attaching portion to which a liquid supplying unit that supplies liquid of the liquid supplying path is attached; and a sealing member which is provided with an insertion hole into which the attaching portion is inserted, and is interposed between the liquid supplying unit and the attaching portion, in which a convex portion is provided in any one of the inner surface of the insertion hole and the outer surface of the attaching portion, and a concave portion that fits with the convex portion is provided in the other of the inner surface of the insertion hole and the outer surface of the attaching portion.

Flow path member, liquid ejecting head, and liquid ejecting apparatus

In an inactive region, a farthest dummy electrode formed in a base end portion and an isolated dummy electrode island are located at positions along an extension from an individual internal electrode toward the base end portion. Such a configuration allows the area of the dummy electrode to be reduced, compared with a dummy electrode continuously formed in the inactive region. Therefore, the cost incurred by the dummy electrode is reduced, which leads to reduction in manufacturing cost of a piezoelectric unit.

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Matsumoto, Japan

Takafumi Koda