公开(公告)号：US08564184B2

公开(公告)日：2013-10-22

申请号：US13497904

申请日：2010-06-23

申请人： Hirokazu Kurono ,  Toshitaka Honda ,  Katsuya Takaoka ,  Hiroki Takeuchi ,  Kuniharu Tanaka ,  Takeshi Mitsuoka

发明人： Hirokazu Kurono ,  Toshitaka Honda ,  Katsuya Takaoka ,  Hiroki Takeuchi ,  Kuniharu Tanaka ,  Takeshi Mitsuoka

IPC分类号： H01T13/20 ,  H01T13/36 ,  H01T13/38 ,  H01T21/00

CPC分类号： H01T13/36 ,  C04B35/117 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3222 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3418 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/604 ,  C04B2235/77 ,  C04B2235/963 ,  H01T13/38 ,  H01T21/02

摘要： A spark plug that is equipped with an insulator that has a stem portion on a front end side, a center electrode, and a main metal member that retains the insulator at an engaging projection portion, wherein an inner diameter DIN of the engaging projection portion, the maximum outer diameter dOUT of the stem portion, which faces an inner circumferential surface of the engaging projection portion, its inner diameter dIN, and dielectric constant ∈ of the insulator satisfy the condition of “(DIN−dOUT)/2≦0.40 (mm)”, “(dOUT−dIN)/2≦1.65 (mm)”, and “∈≧9.4”.

摘要翻译： 一种火花塞，其配备有在前端侧具有杆部的绝缘体，中心电极和将绝缘体保持在接合突出部的主金属构件，其中，接合突起部的内径DIN， 杆部的面向接合突出部的内周面的最大外径dOUT，其内径dIN和绝缘体的介电常数E满足条件“（DIN- dOUT )/2@0.40（mm） ）“，”（dOUT-dIN)/2@1.65（mm）“，”E“= 9.4”。

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。

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。

公开(公告)号：US20120262049A1

公开(公告)日：2012-10-18

申请号：US13497904

申请日：2010-06-23

申请人： Hirokazu Kurono ,  Toshitaka Honda ,  Katsuya Takaoka ,  Hiroki Takeuchi ,  Kuniharu Tanaka ,  Takeshi Mitsuoka

发明人： Hirokazu Kurono ,  Toshitaka Honda ,  Katsuya Takaoka ,  Hiroki Takeuchi ,  Kuniharu Tanaka ,  Takeshi Mitsuoka

IPC分类号： H01T13/38 ,  H01T21/02

CPC分类号： H01T13/36 ,  C04B35/117 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3222 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3418 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/604 ,  C04B2235/77 ,  C04B2235/963 ,  H01T13/38 ,  H01T21/02

摘要： A spark plug that is equipped with an insulator that has a stem portion on a front end side, a center electrode, and a main metal member that retains the insulator at an engaging projection portion, wherein an inner diameter DIN of the engaging projection portion, the maximum outer diameter dOUT of the stem portion, which faces an inner circumferential surface of the engaging projection portion, its inner diameter dIN, and dielectric constant ∈ of the insulator satisfy the condition of “(DIN−dOUT)/2≦0.40 (mm)”, “(dOUT−dIN)/2≦1.65 (mm)”, and “∈≧9.4”.

摘要翻译： 一种火花塞，其配备有在前端侧具有杆部的绝缘体，中心电极和将绝缘体保持在接合突出部的主金属构件，其中，接合突起部的内径DIN， 面向接合突起部的内周面的杆部的最大外径dOUT，绝缘体的内径dIN和介电常数ε满足条件（DIN-dOUT）/2≦̸0.40（mm） ，（dOUT-dIN）/2≦̸1.65（mm），∈≥9.4。

公开(公告)号：US08278809B2

公开(公告)日：2012-10-02

申请号：US13257709

申请日：2010-03-09

申请人： Hirokazu Kurono ,  Toshitaka Honda ,  Katsuya Takaoka ,  Hiroki Takeuchi ,  Kuniharu Tanaka ,  Takeshi Mitsuoka

发明人： Hirokazu Kurono ,  Toshitaka Honda ,  Katsuya Takaoka ,  Hiroki Takeuchi ,  Kuniharu Tanaka ,  Takeshi Mitsuoka

IPC分类号： F02M57/06 ,  H01T13/20

CPC分类号： C04B35/113 ,  C04B35/117 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3222 ,  C04B2235/3224 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3418 ,  C04B2235/5436 ,  C04B2235/80 ,  C04B2235/96 ,  H01T13/38

摘要： A spark plug exhibits a satisfactory withstand voltage characteristic and sufficient mechanical strength in a high temperature environment exceeding 700° C. The spark plug has a center electrode, an insulator, and a ground electrode, characterized in that the insulator is formed of an alumina-based sintered material containing an Si component, a Group 2 element (2A) component, and a rare earth element (RE) component; that the alumina-based sintered material has an RE-β-alumina crystal phase; and that the mean crystal grain size DA(RE) of the RE-β-alumina crystal phase and that of alumina DA(Al) satisfy the following relationship (1): 0.2≦DA(RE)/DA(Al)≦3.0.

摘要翻译： 火花塞在超过700℃的高温环境中表现出令人满意的耐电压特性和足够的机械强度。火花塞具有中心电极，绝缘体和接地电极，其特征在于绝缘体由氧化铝 - 含有Si成分，第2族元素（2A）成分和稀土元素（RE）成分的烧结体; 氧化铝基烧结材料具有RE-＆BGR--氧化铝结晶相; 并且氧化铝DA（Al）的平均晶粒尺寸DA（RE）满足以下关系式（1）：0.2＆nlE; DA（RE）/ DA（Al）＆nlE ; 3.0。

公开(公告)号：US20120007489A1

公开(公告)日：2012-01-12

申请号：US13257709

申请日：2010-03-09

申请人： Hirokazu Kurono ,  Toshitaka Honda ,  Katsuya Takaoka ,  Hiroki Takeuchi ,  Kuniharu Tanaka ,  Takeshi Mitsuoka

发明人： Hirokazu Kurono ,  Toshitaka Honda ,  Katsuya Takaoka ,  Hiroki Takeuchi ,  Kuniharu Tanaka ,  Takeshi Mitsuoka

IPC分类号： H01T13/38

CPC分类号： C04B35/113 ,  C04B35/117 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3222 ,  C04B2235/3224 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3418 ,  C04B2235/5436 ,  C04B2235/80 ,  C04B2235/96 ,  H01T13/38

摘要： A spark plug exhibits a satisfactory withstand voltage characteristic and sufficient mechanical strength in a high temperature environment exceeding 700° C. The spark plug has a center electrode, an insulator, and a ground electrode, characterized in that the insulator is formed of an alumina-based sintered material containing an Si component, a Group 2 element (2A) component, and a rare earth element (RE) component; that the alumina-based sintered material has an RE-β-alumina crystal phase; and that the mean crystal grain size DA(RE) of the RE-β-alumina crystal phase and that of alumina DA(Al) satisfy the following relationship (1): 0.2≦DA(RE)/DA(Al)≦3.0.

摘要翻译： 火花塞在超过700℃的高温环境中表现出令人满意的耐电压特性和足够的机械强度。火花塞具有中心电极，绝缘体和接地电极，其特征在于绝缘体由氧化铝 - 含有Si成分，第2族元素（2A）成分和稀土元素（RE）成分的烧结体; 氧化铝基烧结材料具有RE-＆BGR--氧化铝结晶相; 并且氧化铝DA（Al）的平均晶粒尺寸DA（RE）满足以下关系式（1）：0.2＆nlE; DA（RE）/ DA（Al）＆nlE ; 3.0。

公开(公告)号：US08093791B2

公开(公告)日：2012-01-10

申请号：US12598459

申请日：2009-03-26

申请人： Hirokazu Kurono ,  Toshitaka Honda ,  Hiroki Takeuchi ,  Takeshi Mitsuoka ,  Kuniharu Tanaka ,  Katsuya Takaoka

发明人： Hirokazu Kurono ,  Toshitaka Honda ,  Hiroki Takeuchi ,  Takeshi Mitsuoka ,  Kuniharu Tanaka ,  Katsuya Takaoka

IPC分类号： H01T13/20

CPC分类号： H01T13/38 ,  C04B35/111 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3222 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3418 ,  C04B2235/5436 ,  C04B2235/656 ,  C04B2235/6567 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/80 ,  C04B2235/96 ,  H01B1/12

摘要： An object of the invention is to provide a spark plug including an insulator which is difficult to cause breakdown and exhibits higher withstand voltage characteristics. This invention relates to a spark plug 1 including a center electrode 2, an insulator 3 and a grounding electrode 6, wherein the insulator is formed by an alumina-based sintered body which has a theoretical density ratio of 95.0% or more, which contains a rare earth element component, Si component, and at least two kinds of Group 2 element (2A) components, and in which the rare earth element being dispersed so as to satisfy the following condition: when 7 places of measurement line (measurement length: 180 μm) are selected in the alumina-based sintered body and the rare earth element (RE) present in each of selected measurement lines is analyzed with an energy dispersion method, a total number of measurement lines in which 8 or more peaks derived from the rare earth element (RE) are observed is 4 places or more of the 7 places.

摘要翻译： 本发明的目的是提供一种火花塞，其包括难以引起击穿并且具有更高的耐受电压特性的绝缘体。 本发明涉及一种火花塞1，其包括中心电极2，绝缘体3和接地电极6，其中绝缘体由理论密度比为95.0％以上的氧化铝基烧结体形成，该氧化铝基烧结体含有 稀土元素成分，Si成分，以及至少2种2族元素（2A）成分，稀土类元素分散以满足以下条件：条件>当测量线7（测量值） 长度：180μm），并且使用能量分散法分析存在于所选择的测量线中的稀土元素（RE），其中8个或更多个峰衍生的测量线的总数 从稀土元素（RE）观察到的是7个地方的4个或更多个。

公开(公告)号：US20100084960A1

公开(公告)日：2010-04-08

申请号：US12598459

申请日：2009-03-26

申请人： Hirokazu Kurono ,  Toshitaka Honda ,  Hiroki Takeuchi ,  Takeshi Mitsuoka ,  Kuniharu Tanaka ,  Katsuya Takaoka

发明人： Hirokazu Kurono ,  Toshitaka Honda ,  Hiroki Takeuchi ,  Takeshi Mitsuoka ,  Kuniharu Tanaka ,  Katsuya Takaoka

IPC分类号： H01T13/20

CPC分类号： H01T13/38 ,  C04B35/111 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3222 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3418 ,  C04B2235/5436 ,  C04B2235/656 ,  C04B2235/6567 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/80 ,  C04B2235/96 ,  H01B1/12

摘要： An object of the invention is to provide a spark plug including an insulator which is difficult to cause breakdown and exhibits higher withstand voltage characteristics. This invention relates to a spark plug 1 including a center electrode 2, an insulator 3 and a grounding electrode 6, wherein the insulator is formed by an alumina-based sintered body which has a theoretical density ratio of 95.0% or more, which contains a rare earth element component, Si component, and at least two kinds of Group 2 element (2A) components, and in which the rare earth element being dispersed so as to satisfy the following condition: when 7 places of measurement line (measurement length: 180 μm) are selected in the alumina-based sintered body and the rare earth element (RE) present in each of selected measurement lines is analyzed with an energy dispersion method, a total number of measurement lines in which 8 or more peaks derived from the rare earth element (RE) are observed is 4 places or more of the 7 places.

摘要翻译： 本发明的目的是提供一种火花塞，其包括难以引起击穿并且具有更高的耐受电压特性的绝缘体。 本发明涉及一种火花塞1，其包括中心电极2，绝缘体3和接地电极6，其中绝缘体由理论密度比为95.0％以上的氧化铝基烧结体形成，该氧化铝基烧结体含有 稀土元素成分，Si成分，以及至少2种2族元素（2A）成分，稀土类元素分散以满足以下条件：条件>当测量线7（测量值） 长度：180μm），并且使用能量分散法分析存在于所选择的测量线中的稀土元素（RE），其中8个或更多个峰衍生的测量线的总数 从稀土元素（RE）观察到的是7个地方的4个或更多个。

公开(公告)号：US09417178B2

公开(公告)日：2016-08-16

申请号：US13993172

申请日：2011-12-13

申请人： Shun Momose ,  Hiroki Takeuchi

发明人： Shun Momose ,  Hiroki Takeuchi

IPC分类号： G01N21/01 ,  B01L3/00 ,  G01N33/487 ,  G01N35/00

CPC分类号： G01N21/01 ,  B01L3/502753 ,  B01L2200/0605 ,  B01L2200/0621 ,  B01L2300/0816 ,  B01L2400/0409 ,  B01L2400/0457 ,  G01N33/487 ,  G01N2035/00158

摘要： A microchip including a fluid circuit therein and a specimen inlet for introducing a specimen containing a first component and a second component different in specific gravity from each other into the fluid circuit is provided, in which the fluid circuit includes a specimen measurement unit connected to the specimen inlet and having a prescribed volume for measuring the specimen introduced through the specimen inlet and a separation unit which is a site connected to the specimen measurement unit and having a capacity capable of storing the total amount of the measured specimen, for storing the total amount of the measured specimen and separating the first component and the second component in the stored specimen from each other.

公开(公告)号：US08141616B2

公开(公告)日：2012-03-27

申请号：US12946368

申请日：2010-11-15

申请人： Katsumi Iwasa ,  Yuji Tai ,  Takahiro Tsunemi ,  Hiroki Takeuchi

发明人： Katsumi Iwasa ,  Yuji Tai ,  Takahiro Tsunemi ,  Hiroki Takeuchi

IPC分类号： B22D41/04

CPC分类号： B22D23/006 ,  B22D35/04

摘要： A gravity casting method includes: situating a molding die having a feeder portion in communication with a cavity above the cavity to a horizontal state and pouring a molten metal from a runner in communication with the cavity; putting the molding die to a state inclined at a predetermined angle during pouring of the molten metal from a stage where the molten metal is filled in the runner and prevailing the molten metal while pouring to the inside of the cavity and the feeder portion; and returning the molding die to the horizontal state after the molten metal has been poured completely, and solidifying the molten metal.

摘要翻译： 重力铸造方法包括：将具有馈送部分的模具定位成与空腔上方的空腔连通到水平状态，并将来自与空腔连通的流道的熔融金属倾倒; 在将熔融金属从熔融金属填充在浇道中的阶段浇注期间浇注成型模具到倾斜预定角度的状态，同时浇注到空腔和进料器部分的内部; 并且在熔融金属完全浇注之后将成型模具返回到水平状态，并使熔融金属固化。