Seiko Epson Corporation

Kazuyoshi Imai

Munehide Kanaya

Hiroshige Owaki

Koichi Saito

Nagamitsu Takashima

Motonori Okumura

Hiroyuki Kamikura

Yasuto Kanai

A liquid ejecting head includes a head main body capable of ejecting a liquid supplied from a liquid storage unit, and a supply member provided with a liquid supply passage for supplying the liquid from the liquid storage unit to the head main body. The supply member has a filter mounting member provided with the liquid supply passage, a supply body that supplies the filter mounting member with the liquid, and a filter provided between the filter mounting member and the supply body. The supply member is provided with an outer portion that fixes the filter mounting member, the supply body, and the filter and that is formed by integral molding.

Liquid ejecting head, method for making the same, and liquid ejecting apparatus

Bondage of an ink supply needle and a holder base is appropriately performed by ultrasonic welding. A filter is housed in a filter storing part from the upper side of the holder base, and a needle-side fitting part is fitted into a base-side fitting part from the upper side of the holder base. Then, when the ink supply needle and the holder base are welded by ultrasonic waves, the energy of ultrasonic oscillation is concentrated on a contact portion of a protruded part of a needle-side bondage part and a base-side bondage part, and the contact portion of the protruded part is melted out so as to weld the ink supply needle and the holder base. Thereby, the contact portion of the ink supply needle and the holder base is appropriately bonded by ultrasonic welding as a whole without any gap.

Attachment structures, liquid ejection head unit and method for manufacturing a liquid ejection head unit

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Sakata, Japan

Kazuyoshi Imai