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公开(公告)号:EP2618435B1
公开(公告)日:2019-06-19
申请号:EP11824721.2
申请日:2011-08-08
发明人: KODAMA, Kazuhiro , NASU, Hiroaki
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公开(公告)号:EP2605348B1
公开(公告)日:2017-03-08
申请号:EP11816193.4
申请日:2011-04-12
发明人: NASU, Hiroaki , KODAMA, Kazuhiro
CPC分类号: H01T13/02 , F02P13/00 , H01T13/20 , H01T13/32 , Y10T428/12611
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公开(公告)号:EP2650986A1
公开(公告)日:2013-10-16
申请号:EP11846986.5
申请日:2011-09-06
发明人: KODAMA, Kazuhiro , NASU, Hiroaki
IPC分类号: H01T13/02
摘要: To provide a technology of improving the corrosion resistance of a spark plug.
A spark plug 100 includes a metal shell 1 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% or more and 10.0% or less at a depth at which the atomic concentration of Ni elements is 80%.摘要翻译: 提供一种提高火花塞耐腐蚀性的技术。 火花塞100包括金属壳1,金属壳1的外表面上形成有镍镀层作为保护性表面膜。 镍镀层是通过X射线光电子能谱法(XPS)在深度方向上测定构成元素的原子浓度时,碳原子浓度在深度为1.0%以上且10.0%以下 其中Ni元素的原子浓度为80%。
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公开(公告)号:EP2650986B1
公开(公告)日:2018-04-18
申请号:EP11846986.5
申请日:2011-09-06
发明人: KODAMA, Kazuhiro , NASU, Hiroaki
摘要: To provide a technology of improving the corrosion resistance of a spark plug. A spark plug 100 includes a metal shell 1 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% or more and 10.0% or less at a depth at which the atomic concentration of Ni elements is 80%.
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公开(公告)号:EP2546938B1
公开(公告)日:2019-06-19
申请号:EP10847361.2
申请日:2010-09-16
发明人: NASU, Hiroaki , SATO, Akito , KODAMA, Kazuhiro
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