Joined body and electrostatic chuck

US12528131B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12528131-B2
Application numberUS-202117922539-A
CountryUS
Kind codeB2
Filing dateJun 11, 2021
Priority dateJun 26, 2020
Publication dateJan 20, 2026
Grant dateJan 20, 2026

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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 joined body includes a first member, a second member, and a joining portion disposed therebetween and joining the first member and the second member. The joining portion includes a first joining layer on a side toward the first member and formed of a first joining material, a second joining layer on a side toward the second member and formed of a second joining material, and a metal layer therebetween and having a plurality of holes communicating with one another. The metal layer includes a first-joining-material-impregnated layer on a side toward the first joining layer and in which the plurality of holes are impregnated with the first joining material, a second-joining-material-impregnated layer on a side toward the second joining layer and in which the plurality of holes are impregnated with the second joining material, and an unfilled hole layer therebetween and in which the plurality of holes are void.

First claim

Opening claim text (preview).

What is claimed is: 1 . A joined body comprising: a flat plate-shaped first member; a flat plate-shaped second member; and a joining portion disposed between the first member and the second member and joining the first member and the second member together, wherein the joining portion includes a first joining layer formed of a first joining material and disposed on a side toward the first member, a second joining layer formed of a second joining material and disposed on a…

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Frequently asked questions

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What does patent US12528131B2 cover?
A joined body includes a first member, a second member, and a joining portion disposed therebetween and joining the first member and the second member. The joining portion includes a first joining layer on a side toward the first member and formed of a first joining material, a second joining layer on a side toward the second member and formed of a second joining material, and a metal layer the…
Who is the assignee on this patent?
Ngk Spark Plug Co, Niterra Co Ltd
What technology area does this patent fall under?
Primary CPC classification H10P72/7624. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jan 20 2026 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).