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1. 发明授权

US09077157B2 Ignition plug having a rear trunk portion that provides sufficient strength 有权
标题翻译：点火塞具有提供足够强度的后躯干部分
公开(公告)号：US09077157B2
公开(公告)日：2015-07-07
申请号：US14232101
申请日：2012-07-05
申请人： Hirokazu Kurono , Toshitaka Honda
发明人： Hirokazu Kurono , Toshitaka Honda
IPC分类号： H01T13/20 , H01T13/34
CPC分类号： H01T13/20 , H01T13/34
摘要： An ignition plug includes a ceramic insulator having an axial bore, a metallic shell, and a terminal electrode. The terminal electrode has a leg portion inserted into a rear side of the axial bore, and a head portion formed on a rear side of the leg portion and having an outside diameter greater than that of the leg portion. The insulator includes a rear trunk portion exposed from the rear end of the metallic shell, which has a maximum outside diameter of 9.5 mm or less. The insulator has an end-surface seat portion located forward of its rear end and being in contact with the forward end surface of the head portion, and an outer circumferential portion into which at least a forward end portion of the head portion is inserted and which is located externally of the outer circumference of the head portion.
摘要翻译：火花塞包括具有轴向孔，金属壳和端子电极的陶瓷绝缘体。端子电极具有插入轴向孔的后侧的脚部和形成在腿部的后侧上并且具有大于腿部的外径的头部的头部。绝缘体包括从金属壳的后端露出的后躯干部分，其具有最大外径9.5mm或更小。绝缘体具有位于其后端的前端并与头部的前端面接触的端面座部，以及插入头部的至少前端部的外周部，位于头部的外周的外侧。

2. 发明授权

US08469758B2 Insulator for spark plug, and method for manufacturing spark plug 有权
标题翻译：火花塞绝缘子及火花塞的制造方法
公开(公告)号：US08469758B2
公开(公告)日：2013-06-25
申请号：US13280428
申请日：2011-10-25
申请人： Toshitaka Honda , Hirokazu Kurono
发明人： Toshitaka Honda , Hirokazu Kurono
IPC分类号： H01T21/00 , H01T21/02
CPC分类号： H01T13/38 , B28B1/30 , B28B1/44 , B28B3/003 , H01T21/02 , Y10T29/49227
摘要： A method for manufacturing an insulator includes: preparing a press pin and a forming die having a cavity, the press pin including a pin-side spiral portion formed on a first position; filling a raw powder into the cavity; arranging the press pin within the cavity; pressing the raw powder within the cavity along with the press pin, and obtaining a green body formed with a green body-side spiral portion; releasing the green body along with the press pin from the cavity; retreating the press pin with respect to the green body while rotating the press pin relative to the green body around an axis, and extracting the press pin from the green body; and removing an unnecessary portion from the green body. The first position is positioned such that the green body-side spiral portion is located in the unnecessary portion of the green body.
摘要翻译：制造绝缘体的方法包括：制备压针和具有空腔的成形模，所述压销包括形成在第一位置的销侧螺旋部; 将原料粉末填充到空腔中; 将压脚布置在腔内; 与压销一起挤压空腔内的原料粉末，得到形成有生坯侧螺旋部分的生坯; 释放生坯与压针一起从腔体释放出来; 相对于生坯在相对于生坯体旋转压销的同时相对于生坯体退回压头，并从生坯体提取压销; 并从生坯中去除不需要的部分。第一位置被定位成使得生坯体侧螺旋部分位于生坯体的不必要部分中。

3. 发明授权

US08390183B2 Spark plug and method for manufacturing spark plug 有权
标题翻译：火花塞和火花塞的制造方法
公开(公告)号：US08390183B2
公开(公告)日：2013-03-05
申请号：US12598482
申请日：2009-03-26
申请人： Hirokazu Kurono , Toshitaka Honda , Hiroki Takeuchi , Takeshi Mitsuoka , Kuniharu Tanaka , Kazunari Miyata , Katsuya Takaoka
发明人： Hirokazu Kurono , Toshitaka Honda , Hiroki Takeuchi , Takeshi Mitsuoka , Kuniharu Tanaka , Kazunari Miyata , Katsuya Takaoka
IPC分类号： H01T21/02
CPC分类号： H01T13/38 , C04B35/111 , C04B35/6261 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3222 , C04B2235/3224 , C04B2235/3227 , C04B2235/3229 , C04B2235/3418 , C04B2235/5436 , C04B2235/656 , C04B2235/6567 , C04B2235/77 , C04B2235/786 , C04B2235/80 , C04B2235/96 , H01T21/02
摘要： This invention has an object to provide a spark plug exhibiting high withstand voltage characteristics and high strength at high temperature, formed by an alumina-based sintered body prepared with excellent processability and high productivity, and a method for manufacturing the spark plug. This invention relates to a spark plug 1 including an insulator 3, wherein the insulator 3 includes a dense alumina-based sintered body having an average crystal particle diameter of 1.50 μm or more, and the alumina-based sintered body contains Si, a Group 2 element component containing Ba and a Group 2 element other than those, and a rare earth element component, such that a ratio of a content S of the Si component to a total content of the content S and a content A of the Group 2 element component is 0.60 or more, and a method for manufacturing the spark plug 1 prepared through a grinding-shaping process in which the insulator 3 is ground before burning to shape the same.
摘要翻译：本发明的目的是提供一种具有高耐压特性和高温强度的火花塞，由具有优异的加工性和高生产率制备的氧化铝基烧结体形成，以及一种用于制造火花塞的方法。本发明涉及一种包括绝缘体3的火花塞1，其中绝缘体3包括平均结晶粒径为1.50μm以上的致密的氧化铝基烧结体，氧化铝基烧结体包含Si，第2组含有Ba的元素成分和除此以外的第2族元素的元素成分和稀土元素成分，使得Si成分的含量S与含量S的总含量的比率和第2族元素成分的含量A 为0.60以上，以及通过研磨成形工序制造火花塞1的方法，其中绝缘体3在燃烧之前被磨削成形。

4. 发明申请

US20100136867A1 SPARK PLUG AND METHOD FOR MANUFACTURING SPARK PLUG 有权
标题翻译：火花插头和制造火花插头的方法
公开(公告)号：US20100136867A1
公开(公告)日：2010-06-03
申请号：US12598482
申请日：2009-03-26
申请人： Hirokazu Kurono , Toshitaka Honda , Hiroki Takeuchi , Takeshi Mitsuoka , Kuniharu Tanaka , Kazunari Miyata , Katsuya Takaoka
发明人： Hirokazu Kurono , Toshitaka Honda , Hiroki Takeuchi , Takeshi Mitsuoka , Kuniharu Tanaka , Kazunari Miyata , Katsuya Takaoka
IPC分类号： H01T21/02 , H01T13/38
CPC分类号： H01T13/38 , C04B35/111 , C04B35/6261 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3222 , C04B2235/3224 , C04B2235/3227 , C04B2235/3229 , C04B2235/3418 , C04B2235/5436 , C04B2235/656 , C04B2235/6567 , C04B2235/77 , C04B2235/786 , C04B2235/80 , C04B2235/96 , H01T21/02
摘要： This invention has an object to provide a spark plug exhibiting high withstand voltage characteristics and high strength at high temperature, formed by an alumina-based sintered body prepared with excellent processability and high productivity, and a method for manufacturing the spark plug. This invention relates to a spark plug 1 including an insulator 3, wherein the insulator 3 includes a dense alumina-based sintered body having an average crystal particle diameter of 1.50 μm or more, and the alumina-based sintered body contains Si, a Group 2 element component containing Ba and a Group 2 element other than those, and a rare earth element component, such that a ratio of a content S of the Si component to a total content of the content S and a content A of the Group 2 element component is 0.60 or more, and a method for manufacturing the spark plug 1 prepared through a grinding-shaping process in which the insulator 3 is ground before burning to shape the same.
摘要翻译：本发明的目的是提供一种具有高耐压特性和高温强度的火花塞，由具有优异的加工性和高生产率制备的氧化铝基烧结体形成，以及一种用于制造火花塞的方法。本发明涉及一种包括绝缘体3的火花塞1，其中绝缘体3包括平均结晶粒径为1.50μm以上的致密的氧化铝基烧结体，氧化铝基烧结体包含Si，第2组含有Ba的元素成分和除此以外的第2族元素的元素成分和稀土元素成分，使得Si成分的含量S与含量S的总含量的比率和第2族元素成分的含量A 为0.60以上，以及通过研磨成形工序制造火花塞1的方法，其中绝缘体3在燃烧之前被磨削成形。

5. 发明授权

US07710006B2 Spark plug 有权
标题翻译：火花塞
公开(公告)号：US07710006B2
公开(公告)日：2010-05-04
申请号：US11505902
申请日：2006-08-18
申请人： Jiro Kyuno , Toshitaka Honda
发明人： Jiro Kyuno , Toshitaka Honda
IPC分类号： H01T13/00
CPC分类号： H01T13/36 , H01T13/20 , H01T21/02
摘要： A spark plug in which a glaze is applied to a rear trunk portion (245), a shoulder portion (240), and a portion of a intermediate diameter portion (230) of an insulator (200), and glaze firing is performed. Even when the glaze (shown by dots in the drawings) softened by heating flows downwards, the glaze is accommodated within a groove portion (235) formed between the shoulder portion (240) and the maximum diameter portion (210), and does not reach the maximum diameter portion (210). Such structure facilitates assembly of the insulator (200) to a metallic shell in a spark plug manufacturing process.
摘要翻译：一种火花塞，其中釉施加到后部主体部分（245），肩部（240）以及绝缘体（200）的中间直径部分（230）的一部分，并且进行釉料烧制。即使当通过加热软化的釉料（图中由点示出）向下流动时，釉料容纳在形成在肩部部分（240）和最大直径部分（210）之间的凹槽部分（235）中，并且不会达到最大直径部分（210）。这种结构有助于在火花塞制造过程中将绝缘体（200）组装到金属壳体上。

6. 发明申请

US20080238280A1 SPARK PLUG OF INTERNAL COMBUSTION ENGINE 有权
标题翻译：火花塞内燃机
公开(公告)号：US20080238280A1
公开(公告)日：2008-10-02
申请号：US12056135
申请日：2008-03-26
申请人： Mai MORIBE , Akira Suzuki , Toshitaka Honda
发明人： Mai MORIBE , Akira Suzuki , Toshitaka Honda
IPC分类号： H01T13/38
CPC分类号： H01T13/38
摘要： There is provided a spark plug of an internal combustion engine, including a cylindrical metal shell, an insulator retained in the metal shell and having a through hole in an axial direction of the spark plug and a center electrode fitted in the through hole of the insulator. The insulator includes a rear body portion, a middle body portion and a large-diameter portion located between and protruded radially outwardly from the rear and middle body portions to define a rear shoulder section connected to the rear body portion and a front shoulder section connected to the middle body portion. For strength improvements, the insulator has a first glaze layer extending over the rear body portion and the rear shoulder section of the large-diameter portion and a second glaze layer extending over at least part of the middle body portion from some point on the front shoulder section of the large-diameter portion.
摘要翻译：提供了一种内燃机的火花塞，其包括圆筒形金属壳，保持在金属壳中的绝缘体，并且在火花塞的轴向方向上具有通孔，并且安装在绝缘体的通孔中的中心电极。绝缘体包括后身部分，中间本体部分和大直径部分，其位于中后本体部分之间并径向向外突出，以限定连接到后主体部分的后肩部分和连接到后身部分的前肩部分中间部分。为了提高强度，绝缘体具有在大直径部分的后体部分和后肩部分之上延伸的第一釉层，以及从前肩部上的一点延伸到中间本体部分的至少一部分的第二釉层大直径部分的截面。

7. 发明授权

US07402941B2 Spark plug 有权
标题翻译：火花塞
公开(公告)号：US07402941B2
公开(公告)日：2008-07-22
申请号：US11318469
申请日：2005-12-28
申请人： Tsutomu Shibata , Toshitaka Honda
发明人： Tsutomu Shibata , Toshitaka Honda
IPC分类号： H01T13/20
CPC分类号： H01T21/02 , H01T13/34
摘要： A spark plug including a cylindrical insulator having an axial hole extending in an axial direction; a center electrode held in the axial hole on a leading end side; a connecting terminal held in the axial hole on a trailing end side; and a sealing layer provided in the axial hole and including a glass sealing material containing a glass component and a metallic component, the sealing layer including a first sealing layer containing a first glass sealing material and a second sealing layer containing a second glass sealing material laminated in an axial direction of the axial hole, the first sealing layer contacting the center electrode, and the second sealing layer contacting the connecting terminal, wherein the second glass sealing material has a fluidity higher than that of the first glass sealing material at a temperature higher than a softening point of a glass component in the sealing layer.
摘要翻译：一种火花塞，包括具有沿轴向延伸的轴向孔的圆柱形绝缘体; 中心电极保持在前端侧的轴向孔中; 连接端子，其保持在后端侧的轴向孔中; 以及密封层，设置在所述轴向孔中，并且包括含有玻璃成分和金属成分的玻璃密封材料，所述密封层包括含有第一玻璃密封材料的第一密封层和含有层叠的第二玻璃密封材料的第二密封层在所述轴向孔的轴向上，所述第一密封层与所述中心电极接触，所述第二密封层与所述连接端子接触，其中所述第二玻璃密封材料的流动性高于所述第一玻璃密封材料的流动性，比密封层中的玻璃成分的软化点高。

8. 发明申请

US20140167595A1 IGNITION PLUG 有权
标题翻译：点火插头
公开(公告)号：US20140167595A1
公开(公告)日：2014-06-19
申请号：US14232101
申请日：2012-07-05
申请人： Hirokazu Kurono , Toshitaka Honda
发明人： Hirokazu Kurono , Toshitaka Honda
IPC分类号： H01T13/20
CPC分类号： H01T13/20 , H01T13/34
摘要： An ignition plug includes a ceramic insulator having an axial bore, a metallic shell, and a terminal electrode. The terminal electrode has a leg portion inserted into a rear side of the axial bore, and a head portion formed on a rear side of the leg portion and having an outside diameter greater than that of the leg portion. The insulator includes a rear trunk portion exposed from the rear end of the metallic shell, which has a maximum outside diameter of 9.5 mm or less. The insulator has an end-surface seat portion located forward of its rear end and being in contact with the forward end surface of the head portion, and an outer circumferential portion into which at least a forward end portion of the head portion is inserted and which is located externally of the outer circumference of the head portion.
摘要翻译：火花塞包括具有轴向孔，金属壳和端子电极的陶瓷绝缘体。端子电极具有插入轴向孔的后侧的脚部和形成在腿部的后侧上并且具有大于腿部的外径的头部的头部。绝缘体包括从金属壳的后端露出的后躯干部分，其具有最大外径9.5mm或更小。绝缘体具有位于其后端的前端并与头部的前端面接触的端面座部，以及插入头部的至少前端部的外周部，位于头部的外周的外侧。

9. 发明授权

US08710725B2 Spark plug 有权
标题翻译：火花塞
公开(公告)号：US08710725B2
公开(公告)日：2014-04-29
申请号：US13876497
申请日：2011-09-27
申请人： Haruki Yoshida , Toshitaka Honda
发明人： Haruki Yoshida , Toshitaka Honda
IPC分类号： H01T13/02
CPC分类号： H01T13/20 , H01T13/34
摘要： A spark plug having improved load life performance and fixing strength of a metallic terminal to an insulator, and which reduces the incidence of breakage of the insulator when the metallic terminal is inserted into the axial hole of the insulator. The spark plug of the present invention is characterized in that the distance ((B−A)/2) between the forward end portion of the metallic terminal and the wall surface of an intermediate diameter portion of the axial hole of the insulator falls within a range of 0.02 mm to 0.2 mm, the shrinkage amount (D−C) of a connecting portion falls within a range of 6 mm to 27 mm, and the Vickers hardness of the metallic terminal at ordinary temperature falls within a range of 100 Hv to 430 Hv.
摘要翻译：一种火花塞，其具有改善的负载寿命性能和金属端子固定在绝缘体上的强度，并且当金属端子插入到绝缘体的轴向孔中时，这减少了绝缘体的断裂入射。本发明的火花塞的特征在于，金属端子的前端部与绝缘体的轴孔的中间直径部的壁面之间的距离（（A-A）/ 2）落入范围为0.02mm至0.2mm，连接部分的收缩量（D-C）落在6mm至27mm的范围内，并且常温下金属端子的维氏硬度落在100HV至 430 Hv。

10. 发明授权

US08653725B2 Spark plug for internal-combustion engine 有权
标题翻译：内燃机火花塞
公开(公告)号：US08653725B2
公开(公告)日：2014-02-18
申请号：US13497745
申请日：2010-08-19
申请人： Haruki Yoshida , Toshitaka Honda
发明人： Haruki Yoshida , Toshitaka Honda
IPC分类号： H01T13/20
CPC分类号： H01T13/41 , C03C8/02
摘要： A spark plug that prevents a sharp increase in resistance of a resistor and materializes an excellent load life performance. The spark plug has a resistor formed by heat-sealing of a resistor composition that contains, at least, a conductive material and glass powder. The glass powder contains between 35.0 mol % and 69.8 mol % SiO2, between 15.0 mol % and 49.8 mol % B2O3, between 5.0 mol % and 20.0 mol % Li2O, and at least one additive selected from MgO, CaO, SrO, BaO, Na2O, K2O, ZnO, and ZrO2 in a total of between 2.6 mol % and 25.0 mol %. Further, the total content of Li2O and the additive(s) in the glass powder is between 15.2 mol % and 45.0 mol %, and the ratio of the Li2O content to the total content of the additive(s) is between 1.3 and 5.0.
摘要翻译：一种防止电阻器电阻急剧增加的火花塞，实现了极好的负载寿命。火花塞具有通过热封至少包含导电材料和玻璃粉末的电阻器组合物形成的电阻器。玻璃粉末含有35.0摩尔％至69.8摩尔％的SiO 2，15.0摩尔％至49.8摩尔％的B 2 O 3，5.0摩尔％至20.0摩尔％的Li 2 O，以及至少一种选自MgO，CaO，SrO，BaO，Na 2 O的添加剂，K 2 O，ZnO和ZrO 2，总计为2.6摩尔％至25.0摩尔％。此外，玻璃粉末中的Li 2 O和添加剂的总含量为15.2摩尔％〜45.0摩尔％，Li 2 O含量与添加剂的总量的比例为1.3〜5.0。

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