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1.发明授权Spark plug, metal shell for spark plug, and method of manufacturing spark plug 有权火花塞，火花塞金属外壳及火花塞的制造方法公开(公告)号：US08421324B2
公开(公告)日：2013-04-16
申请号：US13583389
申请日：2010-09-16
申请人： Hiroaki Nasu , Akito Sato , Kazuhiro Kodama
发明人： Hiroaki Nasu , Akito Sato , Kazuhiro Kodama
IPC分类号： H01T13/20
CPC分类号： F02P13/00 , C23C28/322 , C23C28/345 , C25D5/12 , C25D11/16 , C25D11/38 , C25D17/16 , H01T13/20 , H01T13/39 , Y10T428/12611
摘要： Provided is a spark plug that is excellent not only in salt resistance but also in stress corrosion cracking resistance. The spark plug includes a metal shell covered by a composite layer including a nickel plating layer and a chromate layer formed on the nickel plating layer. The chromate layer has a film thickness of 2 to 45 nm and Cr element concentration of not more than 60 at % and contains Ni in addition to Cr.
摘要翻译： 本发明提供一种火花塞，不仅耐盐性优异，而且耐应力腐蚀开裂性也优异。 火花塞包括由镍镀层和形成在镀镍层上的铬酸盐层的复合层覆盖的金属壳。 铬酸盐层的膜厚为2〜45nm，Cr元素浓度为60at％以下，并含有Cr。
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2.发明申请SPARK PLUG, METAL SHELL FOR SPARK PLUG, AND METHOD OF MANUFACTURING SPARK PLUG 有权SPARK PLUG，SPARK PLUG金属外壳以及制造SPARK PLUG的方法公开(公告)号：US20130002120A1
公开(公告)日：2013-01-03
申请号：US13583389
申请日：2010-09-16
申请人： Hiroaki Nasu , Akito Sato , Kazuhiro Kodama
发明人： Hiroaki Nasu , Akito Sato , Kazuhiro Kodama
CPC分类号： F02P13/00 , C23C28/322 , C23C28/345 , C25D5/12 , C25D11/16 , C25D11/38 , C25D17/16 , H01T13/20 , H01T13/39 , Y10T428/12611
摘要： Provided is a spark plug that is excellent not only in salt resistance but also in stress corrosion cracking resistance. The spark plug includes a metal shell covered by a composite layer including a nickel plating layer and a chromate layer formed on the nickel plating layer. The chromate layer has a film thickness of 2 to 45 nm and Cr element concentration of not more than 60 at % and contains Ni in addition to Cr.
摘要翻译： 本发明提供一种火花塞，不仅耐盐性优异，而且耐应力腐蚀开裂性也优异。 火花塞包括由镍镀层和形成在镀镍层上的铬酸盐层的复合层覆盖的金属壳。 铬酸盐层的膜厚为2〜45nm，Cr元素浓度为60at％以下，并含有Cr。
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公开(公告)号：US08716924B2
公开(公告)日：2014-05-06
申请号：US13818719
申请日：2011-04-12
申请人： Hiroaki Nasu , Makoto Sugita , Akito Sato , Shingo Kuwahara
发明人： Hiroaki Nasu , Makoto Sugita , Akito Sato , Shingo Kuwahara
IPC分类号： H01T13/39
摘要： A spark plug having a metallic shell covered with a nickel plating layer and having a groove portion formed between a tool engagement portion and a gas seal portion and having an orthogonal-to-axis sectional area of 36 mm2 or less.
摘要翻译： 一种火花塞，其具有覆盖有镍镀层的金属壳，并且具有形成在工具接合部和气体密封部之间并且具有36mm 2或更小的正交轴截面积的槽部。
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公开(公告)号：US20130249380A1
公开(公告)日：2013-09-26
申请号：US13991183
申请日：2011-09-06
申请人： Kazuhiro Kodama , Hiroaki Nasu
发明人： Kazuhiro Kodama , Hiroaki Nasu
IPC分类号： H01T13/06
摘要： 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%.
摘要翻译： 提供提高火花塞的耐腐蚀性的技术。 一种火花塞，其外表面上形成有镍镀层作为保护表面膜的金属壳。 镀镍层使得当通过X射线光电子能谱（XPS）在深度方向测量构成元素的原子浓度时，在原子浓度的深度处，碳原子的浓度为1.0％至10.0％ 的Ni元素为80％。
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公开(公告)号：US20130154468A1
公开(公告)日：2013-06-20
申请号：US13818719
申请日：2011-04-12
申请人： Hiroaki Nasu , Makoto Sugita , Akito Sato , Shingo Kuwahara
发明人： Hiroaki Nasu , Makoto Sugita , Akito Sato , Shingo Kuwahara
IPC分类号： H01T13/39
摘要： A spark plug having a metallic shell covered with a nickel plating layer and having a groove portion formed between a tool engagement portion and a gas seal portion and having an orthogonal-to-axis sectional area of 36 mm2 or less.
摘要翻译： 一种火花塞，其具有覆盖有镍镀层的金属壳，并且具有形成在工具接合部和气体密封部之间并且具有36mm 2或更小的正交轴截面积的槽部。
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公开(公告)号：US08853927B2
公开(公告)日：2014-10-07
申请号：US13814982
申请日：2011-04-12
申请人： Hiroaki Nasu , Kazuhiro Kodama
发明人： Hiroaki Nasu , Kazuhiro Kodama
CPC分类号： H01T13/02 , F02P13/00 , H01T13/20 , H01T13/32 , Y10T428/12611
摘要： A spark plug superior in salt corrosion resistance and stress corrosion cracking resistance is provided. The spark plug includes a metallic shell coated with a composite layer which includes a nickel plating layer and a chromate layer formed on the nickel plating layer. The spark plug is characterized in that the nickel plating layer has a thickness A which satisfies a relational expression 3 μm≦A≦15 μm and that the chromate layer has a thickness B which satisfies a relational expression 2 nm≦B≦45 nm.
摘要翻译： 提供了耐盐腐蚀性和耐应力腐蚀开裂性优异的火花塞。 火花塞包括涂覆有复合层的金属壳，其包括镀镍层和形成在镀镍层上的铬酸盐层。 该火花塞的特征在于，镍镀层的厚度A满足关系式3μm＆lt; NlE; A＆nlE;15μm，并且铬酸盐层的厚度B满足关系式2nm＆nlE; B＆nlE; 45nm。
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公开(公告)号：US08742653B2
公开(公告)日：2014-06-03
申请号：US13822052
申请日：2011-08-08
申请人： Kazuhiro Kodama , Hiroaki Nasu
发明人： Kazuhiro Kodama , Hiroaki Nasu
摘要： An adhesion of a nickel plating layer to a metal shell is improved, and an effect of improving a corrosion resistance by providing the nickel plating layer is sufficiently exerted. A spark plug 1 includes a cylindrical metal shell 3 that extends in an axial CL1 direction, and a nickel plating layer 31 that is made of metal containing nickel as a main component and covers an outer surface of the metal shell. In a monochrome image of 256 gradations where black is 0 and white is 255, which is obtained by observing a cross-section perpendicular to an outer surface of the nickel plating layer by a transmission electron microscope with an acceleration voltage of 200 kV, an average value in 256 gradations of the monochrome image is 170 or larger and 230 or smaller.
摘要翻译： 镍镀层与金属壳的粘合性提高，充分发挥提供镍镀层提高耐腐蚀性的效果。 火花塞1包括沿轴向CL1方向延伸的圆筒形金属壳3和由镀镍作为主要成分并覆盖金属壳外表面的金属制成的镀镍层31。 在通过用200kV的加速电压的透射电子显微镜观察与镍镀层的外表面垂直的截面而得到的黑色为0且白色为255的256个灰度的单色图像中，平均 单色图像的256个灰度值为170以上且230以下。
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公开(公告)号：US20130134858A1
公开(公告)日：2013-05-30
申请号：US13814982
申请日：2011-04-12
申请人： Hiroaki Nasu , Kazuhiro Kodama
发明人： Hiroaki Nasu , Kazuhiro Kodama
IPC分类号： H01T13/02
CPC分类号： H01T13/02 , F02P13/00 , H01T13/20 , H01T13/32 , Y10T428/12611
摘要： A spark plug superior in salt corrosion resistance and stress corrosion cracking resistance is provided. The park plug includes a metallic shell coated with a composite layer which includes a nickel plating layer and a chromate layer formed on the nickel plating layer. The spark plug is characterized in that the nickel plating layer has a thickness A which satisfies a relational expression 3 μm≦A≦15 μm and that the chromate layer has a thickness B which satisfies a relational expression 2 nm≦B≦45 nm.
摘要翻译： 提供了耐盐腐蚀性和耐应力腐蚀开裂性优异的火花塞。 公园插头包括涂覆有复合层的金属外壳，该复合层包括镀镍层和形成在镀镍层上的铬酸盐层。 火花塞的特征在于，镍镀层的厚度A满足关系式3μm@15μm，铬酸盐层的厚度B满足2nm @ B @ 45nm的关系式。
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公开(公告)号：US09130355B2
公开(公告)日：2015-09-08
申请号：US13991183
申请日：2011-09-06
申请人： Kazuhiro Kodama , Hiroaki Nasu
发明人： Kazuhiro Kodama , Hiroaki Nasu
摘要： 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%.
摘要翻译： 提供提高火花塞的耐腐蚀性的技术。 一种火花塞，其外表面上形成有镍镀层作为保护表面膜的金属壳。 镀镍层使得当通过X射线光电子能谱（XPS）在深度方向测量构成元素的原子浓度时，在原子浓度的深度处，碳原子的浓度为1.0％至10.0％ 的Ni元素为80％。
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公开(公告)号：US20130175917A1
公开(公告)日：2013-07-11
申请号：US13822052
申请日：2011-08-08
申请人： Kazuhiro Kodama , Hiroaki Nasu
发明人： Kazuhiro Kodama , Hiroaki Nasu
IPC分类号： H01T13/06
摘要： An adhesion of a nickel plating layer to a metal shell is improved, and an effect of improving a corrosion resistance by providing the nickel plating layer is sufficiently exerted. A spark plug 1 includes a cylindrical metal shell 3 that extends in an axial CL1 direction, and a nickel plating layer 31 that is made of metal containing nickel as a main component and covers an outer surface of the metal shell. In a monochrome image of 256 gradations where black is 0 and white is 255, which is obtained by observing a cross-section perpendicular to an outer surface of the nickel plating layer by a transmission electron microscope with an acceleration voltage of 200 kV, an average value in 256 gradations of the monochrome image is 170 or larger and 230 or smaller.
摘要翻译： 镍镀层与金属壳的粘合性提高，充分发挥提供镍镀层提高耐腐蚀性的效果。 火花塞1包括沿轴向CL1方向延伸的圆筒形金属壳3和由镀镍作为主要成分并覆盖金属壳外表面的金属制成的镀镍层31。 在通过用200kV的加速电压的透射电子显微镜观察与镍镀层的外表面垂直的截面而得到的黑色为0且白色为255的256个灰度的单色图像中，平均 单色图像的256个灰度值为170以上且230以下。
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