Ball stud strategy for hand-replaceable components requiring electric power
US-2018358783-A1 · Dec 13, 2018 · US
Spark plug
US9130355B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9130355-B2 |
| Application number | US-201113991183-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 6, 2011 |
| Priority date | Dec 7, 2010 |
| Publication date | Sep 8, 2015 |
| Grant date | Sep 8, 2015 |
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Abstract
Official abstract text for this publication.
To provide a technology of improving the corrosion resistance of a spark plug. A spark plug having a metal shell on the outer surface of which a nickel plated layer is formed as a protective surface film. The nickel plated layer is such that when the atomic concentrations of constituent elements are measured in a depth direction by an X-ray photoelectron spectroscopy (XPS), the concentration of carbon atoms is 1.0% to 10.0% at a depth at which the atomic concentration of Ni elements is 80%.
First claim
Opening claim text (preview).
Having described the invention, the following is claimed: 1. A spark plug including a metal shell whose outer surface is coated with a nickel plated layer, characterized in that the nickel plated layer is such that when the atomic concentrations of constituent elements are measured in a depth direction by an X-ray photoelectron spectroscopy (XPS), the atomic concentration of C elements is 1.0% to 10.0% at a depth at which the atomic concentration of Ni elements is 80%.…
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Frequently asked questions
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- What does patent US9130355B2 cover?
- To provide a technology of improving the corrosion resistance of a spark plug. A spark plug having a metal shell on the outer surface of which a nickel plated layer is formed as a protective surface film. The nickel plated layer is such that when the atomic concentrations of constituent elements are measured in a depth direction by an X-ray photoelectron spectroscopy (XPS), the concentrat…
- Who is the assignee on this patent?
- Kodama Kazuhiro, Nasu Hiroaki, Ngk Spark Plug Co
- What technology area does this patent fall under?
- Primary CPC classification H01T13/06. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 08 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).