Liquid ejection head and liquid ejection apparatus

US8944558B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8944558-B2
Application numberUS-201113216711-A
CountryUS
Kind codeB2
Filing dateAug 24, 2011
Priority dateAug 27, 2010
Publication dateFeb 3, 2015
Grant dateFeb 3, 2015

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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 liquid ejection substrate having an ejection port surface, a support substrate for supporting the liquid ejection substrate, having two first positioning portions being in contact with an attaching portion, to which the liquid ejection head is attached, to determine the position of the liquid ejection head with respect to the attaching portion in a predetermined direction, and a housing for supporting the support substrate, having a second positioning portion being in contact with the attaching portion to determine the position of the liquid ejection head with respect to the attaching portion in the predetermined direction. A surface perpendicular to the ejection port surface and extending along the predetermined direction, having the second positioning portion, is disposed between two surfaces perpendicular to the ejection port surface and extending along the predetermined direction, each having one of the first positioning portions.

First claim

Opening claim text (preview).

What is claimed is: 1. A liquid ejection head for ejecting liquid comprising: a liquid ejection substrate having an ejection port surface in which ejection ports for ejecting liquid are provided; a support substrate for supporting the liquid ejection substrate, the support substrate having two first positioning portions being in contact with an attaching portion, to which the liquid ejection head is attached, to determine the position of the liquid ejection head with respect to…

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What does patent US8944558B2 cover?
A liquid ejection head includes a liquid ejection substrate having an ejection port surface, a support substrate for supporting the liquid ejection substrate, having two first positioning portions being in contact with an attaching portion, to which the liquid ejection head is attached, to determine the position of the liquid ejection head with respect to the attaching portion in a predetermine…
Who is the assignee on this patent?
Kudo Kiyomitsu, Kuroda Tomotsugu, Canon Kk
What technology area does this patent fall under?
Primary CPC classification B41J2/14024. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Feb 03 2015 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).