Liquid ejection head and image forming apparatus including same

US9259930B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9259930-B2
Application numberUS-201414174304-A
CountryUS
Kind codeB2
Filing dateFeb 6, 2014
Priority dateFeb 18, 2013
Publication dateFeb 16, 2016
Grant dateFeb 16, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A liquid ejection head includes a nozzle plate, a channel plate, a common-liquid-chamber member, and a deformable damper area. The nozzle plate includes plural nozzles to eject droplets of liquid. The channel plate includes individual liquid chambers communicated with the nozzles. The common-liquid-chamber member includes a common liquid chamber to supply the liquid to the individual liquid chambers. The deformable damper area forms a wall face of the common liquid chamber. The channel plate has an end in a direction perpendicular to a nozzle array direction in which the nozzles are arrayed. The end is opposed to a portion of the damper area and has a relief at a side facing the damper area to permit deformation of the damper area.

First claim

Opening claim text (preview).

What is claimed is: 1. A liquid ejection head, comprising: a nozzle plate including plural nozzles to eject droplets of liquid; a channel plate including individual liquid chambers communicated with the nozzles; a common-liquid-chamber member including a common liquid chamber to supply the liquid to the individual liquid chambers; and a deformable damper area forming a wall face of the common liquid chamber, wherein the channel plate has an end portion disposed at an end o…

Assignees

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Classifications

  • Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

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Frequently asked questions

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What does patent US9259930B2 cover?
A liquid ejection head includes a nozzle plate, a channel plate, a common-liquid-chamber member, and a deformable damper area. The nozzle plate includes plural nozzles to eject droplets of liquid. The channel plate includes individual liquid chambers communicated with the nozzles. The common-liquid-chamber member includes a common liquid chamber to supply the liquid to the individual liquid cha…
Who is the assignee on this patent?
Kimura Yuu, Yoshida Takahiro, Ricoh Co Ltd
What technology area does this patent fall under?
Primary CPC classification B41J2/14274. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Feb 16 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).