Multilayer ceramic capacitor and manufacturing method of multilayer ceramic capacitor
US-2018068790-A1 · Mar 8, 2018 · US
Conductive paste
US12476047B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12476047-B2 |
| Application number | US-202418609022-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 19, 2024 |
| Priority date | Jun 26, 2022 |
| Publication date | Nov 18, 2025 |
| Grant date | Nov 18, 2025 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A conductive paste included in inner electrodes of a multilayer ceramic capacitor is fired and includes a conductive metal powder, a ceramic powder, an organic solvent, and an organic binder. The conductive metal powder includes copper, and at least a portion of the ceramic powder is a powder of at least one oxide of an ABO3 type with a specified ionic radius in which a ratio of a six-coordinate ionic radius of an A-site element in ABO3 to a six-coordinate ionic radius of copper is about 0.96 or greater and about 1.04 or less.
First claim
Opening claim text (preview).
What is claimed is: 1 . A conductive paste to be included in inner electrodes of a multilayer ceramic capacitor, the conductive paste comprising: a conductive metal powder; a ceramic powder; an organic solvent; and an organic binder; wherein the conductive metal powder includes copper; at least a portion of the ceramic powder is a powder of at least one oxide of an ABO 3 type with a specified ionic radius in which a ratio of a six-coordinate ionic radius of an A-site element in ABO 3 to a six-coordinate ionic radius of copper is about 0.96 or greater and about 1.04 or less; the oxide of the ABO 3 type with the specified ionic radius has an ilmenite crystal structure; and the at least one oxide of the ABO 3 type with the specified ionic radius is at least one of CuTiO 3 , CoTiO 3 , or CrTiO 3 . 2 . The conductive paste according to claim 1 , wherein about 10% by volume or more of the ceramic powder is the powder of at the least one oxide of the ABO 3 type with the specified ionic radius, and a remainder of the ceramic powder is a powder including at least one of BaTiO 3 , SrTiO 3 , or CaZrO 3 . 3 . The conductive paste according to claim 1 , wherein the ceramic powder includes at least one of Mn, Mg, Si, Y, Dy, or Gd as a minor additional material.
Assignees
Inventors
Classifications
the conductive material comprising metals or alloys · CPC title
Stacked capacitors (H01G4/33 takes precedence) · CPC title
based on zirconium oxides or zirconates (H01G4/1263 takes precedence) · CPC title
based on alkaline earth titanates · CPC title
Perovskite structure ABO3 · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US12476047B2 cover?
- A conductive paste included in inner electrodes of a multilayer ceramic capacitor is fired and includes a conductive metal powder, a ceramic powder, an organic solvent, and an organic binder. The conductive metal powder includes copper, and at least a portion of the ceramic powder is a powder of at least one oxide of an ABO3 type with a specified ionic radius in which a ratio of a six-coordinat…
- Who is the assignee on this patent?
- Murata Manufacturing Co
- What technology area does this patent fall under?
- Primary CPC classification H01G4/0085. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 18 2025 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).