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41. 发明申请

US20100275869A1 SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND METHOD OF MANUFACTURING THE SAME 有权
标题翻译：用于内燃机的火花塞及其制造方法
公开(公告)号：US20100275869A1
公开(公告)日：2010-11-04
申请号：US12735343
申请日：2008-12-24
申请人： Mamoru Musasa , Akira Suzuki , Osamu Yoshimoto
发明人： Mamoru Musasa , Akira Suzuki , Osamu Yoshimoto
IPC分类号： H01T13/20 , H01S4/00
CPC分类号： H01T13/39 , C22C1/0466 , C22C5/04 , C22C9/00 , C22C19/03 , C22C32/0021 , H01T13/32 , H01T21/02 , Y10T29/49002
摘要： A spark plug capable of preventing a separation of a noble metal tip and capable of extending a service-life of the spark plug.
摘要翻译：一种能够防止贵金属电极头分离并能够延长火花塞使用寿命的火花塞。

42. 发明授权

US08044562B2 Spark plug 有权
标题翻译：火花塞
公开(公告)号：US08044562B2
公开(公告)日：2011-10-25
申请号：US12741764
申请日：2008-11-12
申请人： Mamoru Musasa , Naomichi Miyashita , Kazuyoshi Torii
发明人： Mamoru Musasa , Naomichi Miyashita , Kazuyoshi Torii
IPC分类号： H01T13/20
CPC分类号： H01T13/39
摘要： There is provided a spark section (80) of needle-like shape protruding from an inner surface (33) of a ground electrode (30) to define a spark gap between the spark section and an electrode tip on a center electrode. The spark section (80) has a noble metal member (81) and an intermediate member (86) joined to each other. The materials of the noble metal member (81) and the intermediate member (86) are selected in such a manner that the thermal conductivity of the intermediate member (86) is lower than that of the noble metal member (81). This limits heat radiation through the heat radiation passage from the noble metal member (81) through the intermediate member (86) to the ground electrode (30) so as to maintain the noble metal member (81) at a higher temperature than conventional types and reduce a quenching effect of the noble metal member (81) on a flame core generated in the spark gap for improvement in ignition performance.
摘要翻译：设置从接地电极（30）的内表面（33）突出的针状的火花部（80），以在火花部和中心电极上的电极尖之间限定火花隙。火花部（80）具有彼此接合的贵金属部件（81）和中间部件（86）。选择贵金属构件（81）和中间构件（86）的材料，使得中间构件（86）的导热率低于贵金属构件（81）的导热率。这就限制了通过从贵金属构件（81）穿过中间构件（86）到接地电极（30）的散热通道的热辐射，以便将贵金属构件（81）保持在比常规类型更高的温度降低贵金属构件（81）对火花隙中产生的火焰核心的淬火效果，以提高点火性能。

43. 发明授权

US5607605A Laser welding device, a method of checking welding condition and a method of making a center electrode for a spark plug 失效
标题翻译：激光焊接装置，检查焊接条件的方法以及制作火花塞的中心电极的方法
公开(公告)号：US5607605A
公开(公告)日：1997-03-04
申请号：US499217
申请日：1995-07-07
申请人： Mamoru Musasa , Wataru Matsutani
发明人： Mamoru Musasa , Wataru Matsutani
IPC分类号： B23K26/00 , B23K26/02 , B23K26/03 , B23K26/32 , G06T1/00
CPC分类号： B23K26/032
摘要： In a laser welding member, a photographing device is provided to photograph plasma caused by exposing laser beams to an object. An image processing member is provided to measure at least one of an area and height of a plasma image photographed by the photographing member. A distinction member is provided to compare a value measured by the image processing member with an allowable value so as to asses the laser welding condition.
摘要翻译：在激光焊接部件中，设置拍摄装置以将激光束照射到物体上来照射等离子体。提供一种图像处理部件，用于测量由拍摄部件拍摄的等离子体图像的面积和高度中的至少一个。提供了一种区别部件，用于将由图像处理部件测量的值与允许值进行比较，以便评估激光焊接条件。

44. 发明申请

US20120062099A1 SPARK PLUG 有权
标题翻译： SPARK插头
公开(公告)号：US20120062099A1
公开(公告)日：2012-03-15
申请号：US13320552
申请日：2010-04-05
申请人： Naomichi Miyashita , Mamoru Musasa
发明人： Naomichi Miyashita , Mamoru Musasa
IPC分类号： H01T13/32
CPC分类号： B23K26/28 , B23K2101/36 , B23K2103/08 , B23K2103/18 , B23K2103/26 , H01T13/32 , H01T13/39 , H01T21/02
摘要： An object of the invention is to restrain separation of an electrode tip from a ground electrode or from a center electrode. A spark plug satisfies a condition 0.8≦A1/A2≦1.9, where, as viewed on a section which contains a center axis (O) of an electrode tip, A1 [Hv] is hardness of the electrode tip as measured outside a circle having a radius of 0.2 mm, with a boundary point (PA) on a surface of the spark plug between a fusion zone and the electrode tip serving as the center of the circle, and A2 [Hv] is hardness of the electrode tip as measured within the circle having a radius of 0.2 mm.
摘要翻译：本发明的目的是抑制电极尖端与接地电极或中心电极的分离。火花塞满足条件0.8＆nlE; A1 / A2＆nlE; 1.9，其中，从包含电极头的中心轴线（O）的部分观察，A1 [Hv]是在圆周外测量的电极尖端的硬度半径为0.2mm，在火花塞的熔融区域和作为圆心的电极端部的表面上具有边界点（PA），并且A2 [Hv]是测量的电极尖端的硬度在半径为0.2mm的圆内。

45. 发明申请

US20100264796A1 SPARK PLUG 有权
标题翻译： SPARK插头
公开(公告)号：US20100264796A1
公开(公告)日：2010-10-21
申请号：US12741764
申请日：2008-11-12
申请人： Mamoru Musasa , Naomichi Miyashita , Kazuyoshi Torii
发明人： Mamoru Musasa , Naomichi Miyashita , Kazuyoshi Torii
IPC分类号： H01T13/39
CPC分类号： H01T13/39
摘要： There is provided a spark section (80) of needle-like shape protruding from an inner surface (33) of a ground electrode (30) to define a spark gap between the spark section and an electrode tip on a center electrode. The spark section (80) has a noble metal member (81) and an intermediate member (86) joined to each other. The materials of the noble metal member (81) and the intermediate member (86) are selected in such a manner that the thermal conductivity of the intermediate member (86) is lower than that of the noble metal member (81). This limits heat radiation through the heat radiation passage from the noble metal member (81) through the intermediate member (86) to the ground electrode (30) so as to maintain the noble metal member (81) at a higher temperature than conventional types and reduce a quenching effect of the noble metal member (81) on a flame core generated in the spark gap for improvement in ignition performance.
摘要翻译：设置从接地电极（30）的内表面（33）突出的针状的火花部（80），以在火花部和中心电极上的电极尖之间限定火花隙。火花部（80）具有彼此接合的贵金属部件（81）和中间部件（86）。选择贵金属构件（81）和中间构件（86）的材料，使得中间构件（86）的导热率低于贵金属构件（81）的导热率。这就限制了通过从贵金属构件（81）穿过中间构件（86）到接地电极（30）的散热通道的热辐射，以便将贵金属构件（81）保持在比常规类型更高的温度降低贵金属构件（81）对火花隙中产生的火焰核心的淬火效果，以提高点火性能。

46. 发明申请

US20090127997A1 SPARK PLUG FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：火花塞用于内燃机
公开(公告)号：US20090127997A1
公开(公告)日：2009-05-21
申请号：US12274396
申请日：2008-11-20
申请人： Hiroyuki Kameda , Mamoru Musasa
发明人： Hiroyuki Kameda , Mamoru Musasa
IPC分类号： H01T13/26 , H01T21/02
CPC分类号： H01T13/39 , H01T13/32 , H01T21/02
摘要： A spark plug including: a rod-shaped center electrode; an insulator; a metal shell; a ground electrode joined to the metal shell and bent toward the center electrode; a noble metal tip joined to an end portion of the ground electrode and opposing a leading end portion of the center electrode via a gap; and a bulge portion. A part of the noble metal tip is embedded in the ground electrode, and another part of the noble metal tip protrudes from a distal end surface of the ground electrode. A relationship A≧0.25 mm is satisfied where A (mm) is a protruding length of the noble metal tip from the distal end surface. The bulge portion covers a center part of a boundary between the noble metal tip and the end surface in a width direction.
摘要翻译：一种火花塞，包括：杆状中心电极; 绝缘体金属壳; 连接到金属壳并朝向中心电极弯曲的接地电极; 接合到接地电极的端部并且经由间隙与中心电极的前端部相对的贵金属端头; 和凸起部分。贵金属电极头的一部分嵌入到接地电极中，贵金属电极头的另一部分从接地电极的远端表面突出。满足A = 0.25mm的关系，其中A（mm）是贵金属端头从远端表面的突出长度。凸起部覆盖贵金属端头和端面之间在宽度方向上的边界的中心部分。

47. 发明授权

US5760532A Sintered ceramic body for a spark plug 失效
标题翻译：用于火花塞的烧结陶瓷体
公开(公告)号：US5760532A
公开(公告)日：1998-06-02
申请号：US538243
申请日：1995-10-03
申请人： Sugimoto Makoto , Mamoru Musasa , Hiroyuki Tanabe , Masahiro Konishi
发明人： Sugimoto Makoto , Mamoru Musasa , Hiroyuki Tanabe , Masahiro Konishi
IPC分类号： H01T13/38 , H01T13/20
CPC分类号： H01T13/38
摘要： In a spark plug insulator made of a sintered ceramic body, including aluminum nitride (AlN) or aluminum oxynitride (AlON) ceramic powder having an average grain size of 1.5 .mu.m in which the oxygen content of the aluminum nitride or the aluminum oxynitride powder is less than 2 percent by weight. Magnesium (Mg) is also present in an amount in the range from 0.01 wt. % to 5.0 wt. % where the amount of the magnesium (Mg) is calculated by converting the magnesium (Mg) to its oxidized compound (MgO). Also included is a sintering additive present in an amount up to 10 wt. % selected from the group consisting of rare earth metal compounds in which the weight percentage of the sintering additive is calculated by converting the sintering additive to its oxidized compound. The rare earth metal compound is selected from the group of yttrium oxide (Y.sub.2 O.sub.3) calcium oxide (CaO), barium oxide (BaO), strontium oxide (SrO), scandium oxide (Sc.sub.2 O.sub.2), europium oxide (Eu.sub.2 O.sub.3) and lanthanum oxide (La.sub.2 O.sub.3).
摘要翻译：在由烧结陶瓷体构成的火花塞绝缘体中，其包含平均粒径为1.5μm的氮化铝（AlN）或氮氧化铝（AlON）陶瓷粉末，其中氮化铝或氮氧化铝粉末的氧含量为小于2重量％。镁（Mg）也以0.01重量％的量存在。％至5.0wt ％，其中镁（Mg）的量通过将镁（Mg）转化成其氧化化合物（MgO）而计算。还包括以高达10重量％的量存在的烧结添加剂。选自由稀土金属化合物组成的组，其中烧结添加剂的重量百分比通过将烧结添加剂转化为其氧化化合物而计算。稀土金属化合物选自氧化钇（Y 2 O 3）氧化钙（CaO），氧化钡（BaO），氧化锶（SrO），氧化钪（Sc 2 O 2），氧化铕（Eu 2 O 3）和氧化镧（La 2 O 3 ）。

48. 发明授权

US5477104A Spark plug resistant to accidental discharges 失效
标题翻译：火花塞可防止意外放电
公开(公告)号：US5477104A
公开(公告)日：1995-12-19
申请号：US338829
申请日：1994-11-10
申请人： Hiroyuki Tanabe , Mamoru Musasa , Makoto Sugimoto , Masahiro Konishi
发明人： Hiroyuki Tanabe , Mamoru Musasa , Makoto Sugimoto , Masahiro Konishi
IPC分类号： H01T13/20 , H01T13/36 , H01T13/38
CPC分类号： H01T13/38
摘要： A spark plug includes a cylindrical metallic shell having a shoulder portion, and a tubular insulator having a stepped portion which rests on the shoulder portion within the metallic shell. The insulator has a rear half made of aluminum oxide and a front half made of aluminum nitride, the rear half having a protrusion, while the front half having a housing, and tightly joining the protrusion within the housing. An overlapping portion of the protrusion and the housing is at least partly located in a plane which is perpendicular to a longitudinal axis of the center electrode, the plane passing through the shoulder portion of the metallic shell.
摘要翻译：火花塞包括具有肩部的圆柱形金属壳和具有搁置在金属壳内的肩部上的阶梯部的管状绝缘体。绝缘体具有由氧化铝制成的后半部和由氮化铝制成的前半部，后半部具有突起，而前半部具有壳体，并且将突起紧密地接合在壳体内。突起和壳体的重叠部分至少部分地位于垂直于中心电极的纵轴的平面中，该平面通过金属壳的肩部。

49. 发明授权

US08212461B2 Spark plug for internal combustion engine 有权
公开(公告)号：US08212461B2
公开(公告)日：2012-07-03
申请号：US12274396
申请日：2008-11-20
申请人： Hiroyuki Kameda , Mamoru Musasa
发明人： Hiroyuki Kameda , Mamoru Musasa
IPC分类号： H01T13/26 , H01T21/02
摘要： A spark plug including: a rod-shaped center electrode; an insulator; a metal shell; a ground electrode joined to the metal shell and bent toward the center electrode; a noble metal tip joined to an end portion of the ground electrode and opposing a leading end portion of the center electrode via a gap; and a bulge portion. A part of the noble metal tip is embedded in the ground electrode, and another part of the noble metal tip protrudes from a distal end surface of the ground electrode. A relationship A≧0.25 mm is satisfied where A (mm) is a protruding length of the noble metal tip from the distal end surface. The bulge portion covers a center part of a boundary between the noble metal tip and the end surface in a width direction.

50. 发明授权

US07045939B2 Spark plug having a welded electrode and the method of producing the same 失效
标题翻译：具有焊接电极的火花塞及其制造方法
公开(公告)号：US07045939B2
公开(公告)日：2006-05-16
申请号：US10098380
申请日：2002-03-18
申请人： Hideki Teramura , Mamoru Musasa , Kiyohiro Kondo
发明人： Hideki Teramura , Mamoru Musasa , Kiyohiro Kondo
IPC分类号： H01T13/20 , H01T21/02
CPC分类号： H01T21/02 , H01T13/39
摘要： A spark plug used in an automotive internal combustion engine. The spark plug includes a center electrode. An insulator is disposed around the center electrode. A metal main body is disposed around the insulator. A ground electrode has a first end section connected to the metal main body, and a second end section located opposite to the center electrode. Additionally, a tip is formed of an alloy whose main component is Ir. The tip is secured to the ground electrode and serving as a spark consumption-resistant electrode material. The tip has an axis directed to the center electrode. In the spark plug, a molten and solidified section formed of alloy is disposed to fix the tip to the ground electrode. The molten and solidified section includes a surrounding molten and solidified section located surrounding a peripheral surface of a major part of the tip embedded in the ground electrode.
摘要翻译：用于汽车内燃机的火花塞。火花塞包括中心电极。绝缘体设置在中心电极周围。金属主体设置在绝缘体周围。接地电极具有连接到金属主体的第一端部和与中心电极相对的第二端部。此外，尖端由主要成分为Ir的合金形成。尖端被固定到接地电极并用作耐火花消耗电极的电极材料。尖端具有指向中心电极的轴线。在火花塞中，设置由合金形成的熔融和固化部分，以将尖端固定到接地电极。熔融和固化部分包括周围的熔融和凝固部分，其围绕嵌入在接地电极中的尖端的主要部分的周边表面。

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