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1. 发明授权

US08431505B2 Alumina sintered body and method for manufacturing same, and spark plug comprising the alumina sintered body as an insulator 有权
标题翻译：氧化铝烧结体及其制造方法以及包含氧化铝烧结体作为绝缘体的火花塞
公开(公告)号：US08431505B2
公开(公告)日：2013-04-30
申请号：US12722175
申请日：2010-03-11
申请人： Itsuhei Ogata , Hirofumi Suzuki , Hiroshi Araki , Yasuki Aoi
发明人： Itsuhei Ogata , Hirofumi Suzuki , Hiroshi Araki , Yasuki Aoi
IPC分类号： C04B35/111 , H01T13/20
CPC分类号： F02P15/00 , C04B35/111 , C04B35/117 , C04B35/62625 , C04B35/62695 , C04B2235/3225 , C04B2235/3418 , C04B2235/3427 , C04B2235/3463 , C04B2235/5436 , C04B2235/5445 , C04B2235/602 , C04B2235/786 , C04B2235/85
摘要： An alumina sintered body comprises alumina crystals as a main phase and a grain boundary phase made up of crystalline Y2Si2O7 and amorphous SiO2 at grain boundaries of the alumina crystals wherein when the alumina sintered body is taken as 100 wt %, the high melting phase is present in the range of from 0.1 wt % to 15 wt %. There is also provided a method for preparing the alumina sintered body, which method comprising a first mixing step P1 of mixing, at least, a yttria powder having an average particle size of 60 to 100 nm and a silica powder having a given average particle size to provide a mixed slurry and a second mixing step of further mixing an alumina powder having an average particle size of 0.5 to 1.0 μm in the mixed slurry.
摘要翻译：氧化铝烧结体包括氧化铝晶体作为主相，并且晶体相由晶体Y2Si2O7和无定形SiO 2在晶体的晶界处形成，其中当氧化铝烧结体为100重量％时，存在高熔点相在0.1重量％至15重量％的范围内。还提供了一种制备氧化铝烧结体的方法，该方法包括：第一混合步骤P1，至少混合平均粒径为60-100nm的氧化钇粉末和具有给定平均粒度的二氧化硅粉末提供混合浆料和第二混合步骤，在混合浆料中进一步混合平均粒径为0.5-1.0μm的氧化铝粉末。

2. 发明申请

US20100229813A1 ALUMINA SINTERED BODY AND METHOD FOR MANUFACTURING SAME, AND SPARK PLUG COMPRISING THE ALUMINA SINTERED BODY AS AN INSULATOR 有权
标题翻译：氧化铝烧结体及其制造方法，以及包含作为绝缘体的氧化铝烧结体的火花塞
公开(公告)号：US20100229813A1
公开(公告)日：2010-09-16
申请号：US12722175
申请日：2010-03-11
申请人： Itsuhei Ogata , Hirofumi Suzuki , Hiroshi Araki , Yasuki Aoi
发明人： Itsuhei Ogata , Hirofumi Suzuki , Hiroshi Araki , Yasuki Aoi
IPC分类号： F02P15/00 , C04B35/101 , C04B35/18
CPC分类号： F02P15/00 , C04B35/111 , C04B35/117 , C04B35/62625 , C04B35/62695 , C04B2235/3225 , C04B2235/3418 , C04B2235/3427 , C04B2235/3463 , C04B2235/5436 , C04B2235/5445 , C04B2235/602 , C04B2235/786 , C04B2235/85
摘要： An alumina sintered body comprises alumina crystals as a main phase and a grain boundary phase made up of crystalline Y2Si2O7 and amorphous SiO2 at grain boundaries of the alumina crystals wherein when the alumina sintered body is taken as 100 wt %, the high melting phase is present in the range of from 0.1 wt % to 15 wt %. There is also provided a method for preparing the alumina sintered body, which method comprising a first mixing step P1 of mixing, at least, a yttria powder having an average particle size of 60 to 100 nm and a silica powder having a given average particle size to provide a mixed slurry and a second mixing step of further mixing an alumina powder having an average particle size of 0.5 to 1.0 μm in the mixed slurry.
摘要翻译：氧化铝烧结体包括氧化铝晶体作为主相，并且晶体相由晶体Y2Si2O7和无定形SiO 2在晶体的晶界处形成，其中当氧化铝烧结体为100重量％时，存在高熔点相在0.1重量％至15重量％的范围内。还提供了一种制备氧化铝烧结体的方法，该方法包括：第一混合步骤P1，至少混合平均粒径为60-100nm的氧化钇粉末和具有给定平均粒度的二氧化硅粉末提供混合浆料和第二混合步骤，在混合浆料中进一步混合平均粒径为0.5-1.0μm的氧化铝粉末。

3. 发明申请

US20080124266A1 Alumina compound sintered compact, spark plug using the same and method of manufacturing alumina compound sintered compact 审中-公开
标题翻译：氧化铝复合烧结体，使用其的火花塞和制造氧化铝复合烧结体的方法
公开(公告)号：US20080124266A1
公开(公告)日：2008-05-29
申请号：US11984428
申请日：2007-11-16
申请人： Itsuhei Ogata , Yasuki Aoi , Hirofumi Suzuki
发明人： Itsuhei Ogata , Yasuki Aoi , Hirofumi Suzuki
IPC分类号： H01T13/32 , C01F17/00 , C01F7/00
CPC分类号： H01T13/38 , C04B35/117 , C04B35/119 , C04B35/62635 , C04B35/62807 , C04B35/6281 , C04B35/62823 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3244 , C04B2235/3248 , C04B2235/3418 , C04B2235/3463 , C04B2235/656 , C04B2235/6567 , C04B2235/785 , C04B2235/786
摘要： An alumina compound sintered compact, having a principal component of alumina, a method of manufacturing the same, and a spark plug employing such an alumina compound sintered compact are disclosed. The alumina compound sintered compact contains alumina, mullite, zircon, zirconia and a specified metal oxide composed of an oxide of at least one element selected from Group III elements excepting Mg, Ca, Sr, Ba and actinoid, wherein the alumina compound sintered compact contains 0.5 to 10 total parts by weight of mullite, zircon and zirconia, 0.5 to 10 parts by weight of the specified metal oxide and a balance of substantially alumina based on 100 parts by weight in total. The spark plug for an internal combustion engine includes a porcelain insulator made of the alumina compound sintered compact.
摘要翻译：公开了一种氧化铝复合烧结体，其主要成分为氧化铝，其制造方法和使用这种氧化铝复合烧结体的火花塞。氧化铝复合烧结体包含氧化铝，莫来石，锆石，氧化锆和由除了Mg，Ca，Sr，Ba和锕系元素以外的III族元素中的至少一种元素的氧化物构成的规定的金属氧化物，其中，氧化铝复合烧结体包含 0.5〜10重量％的莫来石，锆石和氧化锆，0.5〜10重量份的规定的金属氧化物，余量基本上为100重量份的氧化铝。用于内燃机的火花塞包括由氧化铝复合烧结体制成的瓷绝缘体。

4. 发明申请

US20070298245A1 Alumina composite sintered body, evaluation method thereof and spark plug 审中-公开
标题翻译：氧化铝复合烧结体及其评估方法和火花塞
公开(公告)号：US20070298245A1
公开(公告)日：2007-12-27
申请号：US11812563
申请日：2007-06-20
申请人： Itsuhei Ogata , Yasuki Aoi , Hirofumi Suzuki
发明人： Itsuhei Ogata , Yasuki Aoi , Hirofumi Suzuki
IPC分类号： B32B5/16
CPC分类号： C04B35/62635 , C04B35/117 , C04B35/119 , C04B2235/3206 , C04B2235/3208 , C04B2235/3217 , C04B2235/3222 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3232 , C04B2235/3241 , C04B2235/3243 , C04B2235/3244 , C04B2235/3248 , C04B2235/3251 , C04B2235/3258 , C04B2235/3262 , C04B2235/3265 , C04B2235/3272 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3286 , C04B2235/3418 , C04B2235/3427 , C04B2235/3445 , C04B2235/3454 , C04B2235/3463 , C04B2235/5445 , C04B2235/85 , H01T13/38 , H01T21/02 , Y10T428/256 , Y10T428/257
摘要： An alumina composite sintered body 1 in which fine particles 2 are dispersed in the crystal grains 4 and/or at the crystal grain boundaries 3 of an alumina sintered body obtained by sintering alumina crystal grains 4; an evaluation method thereof; and a spark plug using the alumina composite sintered body 1. Arbitrary regions in the cross-section of the alumina composite sintered body 1 are taken as analysis surfaces, and when the cross-sectional areas of the fine particles 2 contained in each analysis surface are measured, the ratio of the cross-sectional areas occupying in the area of the analysis surface is from 1 to 20%; when the cross-sectional areas of the fine particles 2 contained in each of analysis surfaces adjacent to each other are measured, and the cross-sectional area is converted into a circle having the same area, the diameter of the circle is from 0.1 to 4 μm; and when the concentration A (wt %) of the fine particles 2 contained in each analysis surface is compared with the concentration B (wt %) of the fine particles 2 used at the production, the difference between the concentration A and the concentration B is within ±20 wt %.
摘要翻译：将通过烧结氧化铝晶粒4而获得的氧化铝烧结体的晶粒4和/或晶界3分散有微粒2的氧化铝复合烧结体1; 其评估方法; 以及使用氧化铝复合烧结体1的火花塞。将氧化铝复合烧结体1的横截面中的任意区域作为分析表面，并且当测量包含在每个分析表面中的微粒2的横截面积时，横截面积占比分析面积为1〜20％; 当测量彼此相邻的分析表面中包含的细小颗粒2的横截面积，并且将横截面积转换成具有相同面积的圆时，圆的直径为0.1至4 妈妈将每个分析表面中所含的微细颗粒2的浓度A（wt％）与生产中使用的微粒2的浓度B（wt％）进行比较时，浓度A和浓度B之间的差为在±20重量％以内。

5. 发明申请

US20060186780A1 Alumina-based ceramic composition and spark plug using the same 审中-公开
标题翻译：基于氧化铝的陶瓷组合物和使用其的火花塞
公开(公告)号：US20060186780A1
公开(公告)日：2006-08-24
申请号：US11207002
申请日：2005-08-19
申请人： Itsuhei Ogata , Hirofumi Suzuki , Yasuki Aoi
发明人： Itsuhei Ogata , Hirofumi Suzuki , Yasuki Aoi
IPC分类号： C04B35/117 , C04B35/50 , C04B35/10 , H01T13/00
CPC分类号： C04B35/6303 , C04B35/117 , C04B2235/3206 , C04B2235/3208 , C04B2235/3217 , C04B2235/3222 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3234 , C04B2235/3418 , C04B2235/3427 , C04B2235/3463 , C04B2235/768 , C04B2235/77 , C04B2235/785 , C04B2235/80 , H01T13/38
摘要： An alumina-based ceramic composition comprising a composite sintered body of alumina as a main component and a composition of at least one element selected from Al, Si, Mg and rare earth elements, wherein an amount of the composition of at least one element selected from Al, Si, Mg and the rare earth elements is not greater than 5 parts by weight on the basis of 100 parts by weight of alumina as the main component, and a spark plug using this alumina-based ceramic composition for an insulator.
摘要翻译：一种氧化铝基陶瓷组合物，其包含以氧化铝为主要成分的复合烧结体和选自Al，Si，Mg和稀土元素中的至少一种元素的组成，其中所述组合物的量选自 Al，Si，Mg和稀土元素以100重量份的氧化铝为主要成分为5重量份以及使用该氧化铝基陶瓷组合物作为绝缘体的火花塞。

6. 发明申请

US20110251042A1 ALUMINA SINTERED BODY 审中-公开
标题翻译：铝氧化物烧结体
公开(公告)号：US20110251042A1
公开(公告)日：2011-10-13
申请号：US13082500
申请日：2011-04-08
申请人： Hiroshi Araki , Hirofumi Suzuki , Itsuhei Ogata
发明人： Hiroshi Araki , Hirofumi Suzuki , Itsuhei Ogata
IPC分类号： C03C14/00
CPC分类号： C04B35/111 , C04B35/62655 , C04B2235/3206 , C04B2235/3208 , C04B2235/3217 , C04B2235/3225 , C04B2235/3418 , C04B2235/5445 , C04B2235/80
摘要： An alumina sintered body of the present invention has alumina crystals as a main phase and an amorphous grain boundary glass phase. The amorphous grain boundary glass phase is a grain-boundary glass phase having an amorphous glass component in which at least one of either CaO or MgO is added to SiO2, and at least one type of oxide selected from rare-earth elements and elements in Group IV of the periodic table included in the amorphous glass component as a specific component. When a composition ratio of the main phase and the amorphous grain boundary glass phase is alumina:amorphous glass component:specific component=a:b:c (a+b+c=100% by weight), in a triangular coordinate of which peaks are alumina, the amorphous glass component, and the specific component, a point (a,b,c) is within a range surrounded by four points, A(98.0,1.0,1.0), B(90.0,5.0,5.0), C(93.5,5.0,1.5), and D(97.8,2.0,0.2).
摘要翻译：本发明的氧化铝烧结体具有氧化铝晶体作为主相和无定形晶界玻璃相。无定形晶界玻璃相是具有非晶玻璃成分的晶界玻璃相，其中，向SiO 2中添加CaO或MgO中的至少一种，并且选自组中的稀土元素和元素中的至少一种氧化物包括在非晶玻璃组分中的周期表的IV作为特定组分。当主相和非晶晶界玻璃相的组成比为氧化铝：非晶玻璃组分：特定组分= a:b:c（a + b + c = 100重量％）时，其三角坐标为峰（a，b，c）在四点A（98.0,1.0,1.0），B（90.0,5.0,5.0），C （93.5,5.0,1.5）和D（97.8,2.0,0.2）。

7. 发明授权

US06878304B2 Reduction resistant thermistor, method of production thereof, and temperature sensor 有权
标题翻译：耐还原热敏电阻，其制造方法和温度传感器
公开(公告)号：US06878304B2
公开(公告)日：2005-04-12
申请号：US09925017
申请日：2001-08-09
申请人： Itsuhei Ogata , Daisuke Makino , Kaoru Kuzuoka , Atsushi Kurano
发明人： Itsuhei Ogata , Daisuke Makino , Kaoru Kuzuoka , Atsushi Kurano
IPC分类号： H01C7/02 , H01C7/04 , H01C7/10 , B28B1/00 , H01C7/13
CPC分类号： H01C7/045 , H01C7/025
摘要： A highly accurate reduction resistant thermistor exhibiting stable resistance characteristics even under conditions where the inside of a metal case of a temperature sensor becomes a reducing atmosphere, wherein when producing the thermistor comprised of a mixed sintered body (M1 M2)O3.AOx, the mean particle size of the thermistor material containing the metal oxide, obtained by heat treating, mixing, and pulverizing the starting materials, is made smaller than 1.0 μm and the sintered particle size of the mixed sintered body, obtained by shaping and firing this thermistor material, is made 3 μm to 20 μm so as to reduce the grain boundaries where migration of oxygen occurs, suppress migration of oxygen, and improve the reduction resistance.
摘要翻译：即使在温度传感器的金属壳体的内部成为还原气氛的条件下，即使在由混合烧结体（M1 M2）O3.AOx构成的热敏电阻的制造条件下也能够表现出稳定的电阻特性的高精度的耐压热敏电阻，将通过热处理，混合和粉碎原料得到的包含金属氧化物的热敏电阻材料的粒径设定为小于1.0μm，通过对该热敏电阻材料进行成形和烧制获得的混合烧结体的烧结粒度，为3μm〜20μm，以减少发生氧迁移的晶界，抑制氧的迁移，提高耐还原性。

8. 发明授权

US06740261B1 Wide-range type thermistor element and method of producing the same 有权
标题翻译：宽范围型热敏电阻元件及其制造方法
公开(公告)号：US06740261B1
公开(公告)日：2004-05-25
申请号：US09722317
申请日：2000-11-28
申请人： Itsuhei Ogata , Takumi Kataoka , Eturo Yasuda , Kaoru Kuzuoka , Masanori Yamada
发明人： Itsuhei Ogata , Takumi Kataoka , Eturo Yasuda , Kaoru Kuzuoka , Masanori Yamada
IPC分类号： H01B100
CPC分类号： C04B35/42 , C04B35/016 , C04B35/505 , C04B35/6261 , C04B35/62625 , C04B35/62655 , C04B35/6303 , C04B2235/3208 , C04B2235/3224 , C04B2235/3225 , C04B2235/3232 , C04B2235/3234 , C04B2235/3243 , C04B2235/3268 , C04B2235/3418 , C04B2235/528 , C04B2235/5436 , C04B2235/5445 , C04B2235/768 , C04B2235/80 , C04B2235/96 , Y10T428/31522
摘要： The thermistor element of the present invention is composed of a mixed sintered body aM1M2O3bY2O3 of a composition M1M2O3 (wherein M1 is Y, and M2 is at least one element selected from the elements such as Cr, Mn, Ti, etc.) as a perovskite compound and Y2O3, wherein molar fractions a and b satisfy the relations 0.05≦a
摘要翻译：本发明的热敏电阻元件由M 1 M 2 O 3组成的混合烧结体aM 1 M 2 O 3 bY 2 O 3（其中M 1为Y，M 2为选自Cr，Mn，Ti等的元素中的至少一种元素）和作为钙钛矿型化合物的Y 2 O 3，其中摩尔分数a和b满足0.05 <= a <1.0,0

9. 发明授权

US5911953A Apparatus for detecting and analyzing adsorbates 失效
标题翻译：用于检测和分析吸附物的装置
公开(公告)号：US5911953A
公开(公告)日：1999-06-15
申请号：US865484
申请日：1997-06-02
申请人： Itsuhei Ogata , Atsuhiro Sumiya , Tsukasa Satake
发明人： Itsuhei Ogata , Atsuhiro Sumiya , Tsukasa Satake
IPC分类号： G01N31/00 , G01N21/00 , G01N21/35 , G01N21/62 , G01N21/71 , G01N21/75 , G01N31/10
CPC分类号： G01N21/3563 , Y10T436/205831 , Y10T436/208339 , Y10T436/25875
摘要： A solid object carrying a catalyzer thereon is placed in a closed reaction chamber into which test gases are supplied and is heated up to a temperature of 1000.degree. C. Adsorbates are formed on the surface of the solid object under the test gas flow in the closed reaction chamber. Infrared radiations radiated from the adsorbates are emitted through an infrared-transmissive window hermetically formed on a wall of the closed reaction chamber, and are analyzed by an infrared radiation spectrometer and observed by a microscope. The infrared-transmissive window is cooled down by a cooling device attached thereto so that the temperature of the window does not exceed a certain level, e.g., 200.degree. C. Thus, the adsorbates formed on the solid object can be detected and analyzed under conditions where the test gas is actually flowing and the temperature of the solid object is elevated up to a high level. Since the infrared-transmissive window is cooled down and prevented from being broken by heat, the detection and analysis of the adsorbates are performed safely.
摘要翻译：在其上携带催化剂的固体物体放置在封闭的反应室中，向其中供应测试气体并加热至1000℃的温度。在封闭的试验气体流下的固体物体的表面上形成吸附物反应室。从被吸附物辐射的红外辐射通过气密地形成在封闭反应室的壁上的红外透射窗口发射，并通过红外辐射光谱仪分析并通过显微镜观察。红外线透过窗被连接在其上的冷却装置冷却，使得窗口的温度不超过一定水平，例如200℃。因此，可以在条件下检测和分析形成在固体物体上的吸附物质其中测试气体实际上流动并且固体物体的温度升高到高水平。由于红外线透过窗被冷却并防止被热分解，所以能够安全地进行被检测物的分析。

10. 发明授权

US07056453B2 Thermistor device, thermistor device manufacturing method and temperature sensor 失效
公开(公告)号：US07056453B2
公开(公告)日：2006-06-06
申请号：US09931908
申请日：2001-08-20
申请人： Itsuhei Ogata , Masanori Yamada , Eturo Yasuda , Kaoru Kuzuoka
发明人： Itsuhei Ogata , Masanori Yamada , Eturo Yasuda , Kaoru Kuzuoka
IPC分类号： H01B1/08
CPC分类号： G01K7/22 , C04B35/016 , C04B35/117 , C04B35/42 , C04B35/44 , C04B35/624
摘要： The thermistor portion of a thermistor device consists of a mixed sintered body of aY(Cr0.5Mn0.5)O3.bAl2O3 made of the perovskite-type compound Y(Cr0.5Mn0.5)O3 and Al2O3, or a mixed sintered body of aY(Cr0.5Mn0.5)O3.b(Al2O3+Y2O3) made of Y(Cr0.5Mn0.5)O3, Al2O3 and Y2O3. The mole fractions a and b have the relationships 0.05≦a

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