Patent ID: 11878523
Assignee: SEIKO EPSON CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 18:
19. A liquid ejecting head, comprising:
a flow passage through which a liquid flows;
an energy producing element that produces energy for ejecting the liquid; and
a nozzle which is in communication with the flow passage and from which the liquid is ejected by utilizing the energy produced by the energy producing element; wherein
a direction in which a portion which is a part of the flow passage and with which the nozzle is in communication extends is defined as a first direction,
a direction in which the liquid is ejected from the nozzle and which is orthogonal to the first direction is defined as a second direction, and
a direction which is orthogonal to both the first direction and the second direction is defined as a third direction,
given above definition, the nozzle includes a first portion and a second portion, the second portion being located closer to the flow passage along the second direction than the first portion is,
cross-sectional area size of the first portion when viewed in the second direction is smaller than cross-sectional area size of the second portion when viewed in the second direction,
a width, in the third direction, of an overlapping portion that is a part of the second portion and is included in a first region is greater than a width, in the third direction, of a non-overlapping portion that is a part of the second portion and is included in a second region,
the first region is a region where the second portion overlaps with the first portion in the first direction,
the second region is a region where the second portion does not overlap with the first portion in the first direction, and
a width of the second portion in the second direction is greater than a width of the first portion in the second direction.