Dielectric ceramic composition, multilayer ceramic capacitor, and method for manufacturing the same
    81.
    发明申请
    Dielectric ceramic composition, multilayer ceramic capacitor, and method for manufacturing the same 审中-公开
    介电陶瓷组合物,多层陶瓷电容器及其制造方法

    公开(公告)号:US20050219794A1

    公开(公告)日:2005-10-06

    申请号:US11077281

    申请日:2005-03-11

    摘要: A dielectric ceramic composition contains components, with respective numbers of moles relative to 100 moles of barium titanate, including barium titanate, a first sub-component containing at least one oxide selected from a Mg oxide, a Ca oxide, a Ba oxide, and Sr oxide, a second sub-component containing an oxide containing 1 mol of Si atoms per mol, a third sub-component containing at least one oxide selected from a V oxide, a Mo oxide, and a W oxide, a fourth sub-component containing at least one R1 oxide (wherein R1 is at least one selected from Sc, Er, Tm, Yb, and Lu), a fifth sub-component containing at least one R2 oxide (wherein R2 is at least one selected from Y, Dy, Ho, Tb, Gd, and Eu), a sixth sub-component containing at least one selected from a Mn oxide and a Cr oxide, and a seventh sub-component containing at least one selected from calcium zirconate and a mixture of a Ca oxide and Zr oxide. The ratio (A/B) of the number of moles A of the second sub-component to the total number of moles B of the fourth and fifth sub-components is 0.7 or more. Alternatively, the ratio (C/D) of the number of moles C of Si atoms in the second sub-component to the total number of moles of the atoms in the first to seventh sub-components excluding the Si atoms and oxygen atoms being 0.2 or more, and the total number of moles of the fourth and fifth sub-components being 3 or more.

    摘要翻译: 电介质陶瓷组合物含有相对于100摩尔钛酸钡的摩尔数相对于钛酸钡的成分,含有选自氧化镁,氧化钙,氧化钡和Sr中的至少一种氧化物的第一副成分 氧化物,含有每摩尔含有1摩尔Si原子的氧化物的第二亚成分,含有选自V氧化物,Mo氧化物和W氧化物中的至少一种氧化物的第三副成分,含有 至少一个R 1氧化物(其中R 1是选自Sc,Er,Tm,Yb和Lu中的至少一种),第五子成分至少含有 一种R 2氧化物(其中R 2是选自Y,Dy,Ho,Tb,Gd和Eu中的至少一种),第六副成分至少含有 选自Mn氧化物和Cr氧化物的第一副成分,以及含有选自锆酸钙和氧化钙和Zr氧化物的混合物中的至少一种的第七副成分。 第二子成分的摩尔数A与第四和第五子成分的总摩尔数B的比(A / B)为0.7以上。 或者,第二次成分中的Si原子的摩尔数C与除Si原子和氧原子以外的第一〜第七子成分中的原子的总摩尔数的比率(C / D)为0.2 以上,第四和第五子成分的总摩尔数为3以上。

    Production process for carbonized product and carbonized product obtained by the same process
    82.
    发明申请
    Production process for carbonized product and carbonized product obtained by the same process 失效
    通过相同工艺获得的碳化产品和碳化产品的生产工艺

    公开(公告)号:US20050191230A1

    公开(公告)日:2005-09-01

    申请号:US11062850

    申请日:2005-02-23

    摘要: Provided is a production process for a carbonized product characterized by comprising the following steps (a) to (b): (a) a step in which metal-made or ceramic-made plural granular matters are charged into a heat treating apparatus which is maintained at a temperature of 400° C. or higher and 700° C. or lower and allowed to move therein and in which a carbonized product precursor is fed into the above apparatus and subjected to heat treatment, whereby the carbonized product is adhered on the surface of the above granular matters and (b) a step in which the carbonized product adhered on the surface of the granular matters is heated at a higher temperature than the heat treating temperature in the step (a) and 900° C. or lower, whereby the carbonized product is separated from the granular matters. The present invention provides a production process for an inexpensive and useful carbonized product by simple apparatus and steps.

    摘要翻译: 本发明提供一种碳化物的制造方法,其特征在于,包括以下的工序(a)〜(b):(a)将金属或陶瓷制的多个粒状物质装入保持的热处理装置的工序 在400℃以上且700℃以下的温度下使其移动,碳化产物前体进料到上述装置中进行热处理,由此将碳化产物粘附在表面上 的上述粒状物,(b)在步骤(a)和900℃以下的温度比在步骤(a)的热处理温度高的温度下,将附着在粒状物的表面上的碳化物质加热的工序,由此 碳化产物与粒状物分离。 本发明通过简单的装置和步骤提供了廉价且有用的碳化产品的生产方法。

    Insulator positioning structure of gas sensor
    83.
    发明授权
    Insulator positioning structure of gas sensor 有权
    气体传感器绝缘子定位结构

    公开(公告)号:US06708551B2

    公开(公告)日:2004-03-23

    申请号:US10206045

    申请日:2002-07-29

    申请人: Takashi Kojima

    发明人: Takashi Kojima

    IPC分类号: G01N700

    CPC分类号: G01N27/4077

    摘要: An improved structure of a gas sensor made up of a sensor element and a first and a second hollow cylindrical porcelain insulators covering the sensor element. The first porcelain insulator is laid on the second porcelain insulator in alignment within a body of the gas sensor. A positioning mechanism is provided which works to establish and keep alignment of the first and second porcelain insulators, thereby avoiding undesirable inclination of the first and second porcelain insulators which may cause damage to the sensor element.

    摘要翻译: 由传感器元件和覆盖传感器元件的第一和第二中空圆柱形瓷绝缘体构成的气体传感器的改进结构。 第一瓷绝缘体放置在第二瓷绝缘体上,在气体传感器的主体内对齐。 提供一种定位机构,其用于建立和保持第一和第二瓷绝缘体的对准,从而避免第一和第二瓷绝缘体的不期望的倾斜,这可能导致对传感器元件的损坏。

    Structure of gas sensor
    84.
    发明授权
    Structure of gas sensor 有权
    气体传感器结构

    公开(公告)号:US06615641B2

    公开(公告)日:2003-09-09

    申请号:US09817211

    申请日:2001-03-27

    申请人: Takashi Kojima

    发明人: Takashi Kojima

    IPC分类号: G01M1500

    CPC分类号: G01N27/407 G01N27/4078

    摘要: A gas sensor is provided which includes a first cylindrical insulation porcelain having a gas sensor element installed therein and a second cylindrical insulation porcelain disposed in contact with the first insulation porcelain. The first insulation porcelain is disposed on a seat surface formed on an inner wall of a housing through a packing ring. A contact between the first and second insulation porcelains being located within a contact permissible range defined by projecting outer and inner edges of the packing ring onto an end surface of the first insulation porcelain, thereby minimizing a lateral shift between the contact and the packing ring to avoid the breakage of the first insulation porcelain during assembly or use of the gas sensor.

    摘要翻译: 提供了一种气体传感器,其包括安装有气体传感器元件的第一圆柱形绝缘瓷器和与第一绝缘瓷器接触设置的第二圆柱形绝缘瓷器。 第一绝缘瓷器通过密封环设置在形成在壳体的内壁上的座面上。 第一绝缘瓷和第二绝缘瓷之间的接触位于通过将填料环的外边缘和内边缘突出到第一绝缘瓷的端面上限定的接触允许范围内,从而最小化接触件和填料环之间的横向偏移 避免在组装或使用气体传感器时第一绝缘瓷的破损。

    Pitch with reduced tendency to smoke during spinning and a process for
the production of said pitch
    86.
    发明授权
    Pitch with reduced tendency to smoke during spinning and a process for the production of said pitch 失效
    纺纱过程中吸烟倾向偏小,沥青生产过程中的沥青

    公开(公告)号:US5644018A

    公开(公告)日:1997-07-01

    申请号:US491354

    申请日:1995-06-30

    CPC分类号: D01F9/24 C10C3/00

    摘要: Mesophase pitch that has a softening point of no more than 250.degree. C., a pyridine-insolubles content of no more than 50% and a n-heptane solubles content of 3-10%, with the n-heptane solubles experiencing a weight loss of no more than 15% at 450.degree. C. as measured by thermogravimetry is produced by polymerizing a condensed polycyclic aromatic hydrocarbon or a substance containing it in the presence of HF and BF.sub.3. This mesophase pitch is suppressed satisfactorily in its tendency to smoke during spinning and, additionally, it has a low enough softening point to exhibit outstanding spinnability. Hence, the pitch allows for high-volume spinning to be performed continuously for a prolonged time without causing extensive fouling of the surface of spinning nozzles.

    摘要翻译: 软化点不超过250℃的中间相沥青,吡啶不溶物含量不超过50%,正庚烷可溶物含量为3-10%,正庚烷可溶物体重减轻 通过热重分析法测定,在450℃下不超过15%是通过在HF和BF 3存在下聚合稠合的多环芳烃或其含有物质来制备的。 这种中间相沥青在纺丝期间的吸烟倾向令人满意地抑制,此外,它具有足够低的软化点以表现出优异的可纺性。 因此,该间距允许长时间连续地进行高容量纺丝,而不会引起纺丝喷嘴表面的大量污染。

    Process for producing high-density and high-strength carbon artifacts
showing a fine mosaic texture of optical anisotropy
    87.
    发明授权
    Process for producing high-density and high-strength carbon artifacts showing a fine mosaic texture of optical anisotropy 失效
    用于生产高密度和高强度碳伪影的方法,其显示光学各向异性的细微马赛克纹理

    公开(公告)号:US5609800A

    公开(公告)日:1997-03-11

    申请号:US529439

    申请日:1995-09-18

    IPC分类号: C04B35/528 C10C3/00 C01B31/02

    CPC分类号: C04B35/528 C10C3/00

    摘要: Self-adhesive carbonaceous grains for use in the manufacture of high-density and high-strength carbon artifacts containing 0.5-1.5 wt % of a quinoline-soluble but pyridine-insoluble component and at least 97 wt % of a quinoline-insoluble component and which are prepared by heat-treating in a nonoxidizing atmosphere a mesophase pitch that is obtained by polymerizing condensed polycyclic hydrocarbons or substances containing them in the presence of a superacid consisting of hydrogen fluoride and boron trifluoride. The carbonaceous grains are molded and the mold is baked at a sufficient temperature to achieve its carbonization, with the heating rate being not more than 20.degree. C./h in the temperature range from 400 .degree. to 600.degree. C. In this way, high-density and high-strength carbon artifacts showing a homogeneous fine mosaic texture of optical anisotropy can be efficiently manufactured in high carbon yield.

    摘要翻译: 用于制造含有0.5-1.5重量%喹啉可溶但不溶于吡啶的组分和至少97重量%喹啉不溶组分的高密度和高强度碳伪影的自粘碳质颗粒,其中 通过在非氧化性气氛中通过在由氟化氢和三氟化硼组成的超强酸的存在下聚合冷凝的多环烃或含有它们的物质而获得的中间相沥青来制备。 碳质颗粒被模制,模具在足够的温度下烘烤以实现其碳化,加热速率在400℃至600℃的温度范围内不超过20℃/小时。这样高 可以高产率地有效地制造显示光学各向异性的均匀的细微马赛克纹理的密度和高强度碳伪影。

    Self-adhesive carbonaceous grains and process for producing high-density
and high-strength carbon artifacts showing a fine mosaic texture of
optical anisotropy derived from such grains
    88.
    发明授权
    Self-adhesive carbonaceous grains and process for producing high-density and high-strength carbon artifacts showing a fine mosaic texture of optical anisotropy derived from such grains 失效
    自粘碳质颗粒和用于生产高密度和高强度碳伪影的方法,显示出由这种颗粒衍生的光学各向异性的细微马赛克纹理

    公开(公告)号:US5484520A

    公开(公告)日:1996-01-16

    申请号:US350679

    申请日:1994-12-07

    IPC分类号: C04B35/528 C10C3/00 C10G73/36

    CPC分类号: C04B35/528 C10C3/00

    摘要: Self-adhesive carbonaceous grains for use in the manufacture of high-density and high-strength carbon artifacts containing 0.5-1.5 wt % of a quinoline-soluble but pyridine-insoluble component and at least 97 wt % of a quinoline-insoluble component and which are prepared by heat-treating in a nonoxidizing atmosphere a mesophase pitch that is obtained by polymerizing condensed polycyclic hydrocarbons or substances containing them in the presence of a superacid consisting of hydrogen fluoride and boron trifluoride. The carbonaceous grains are molded and the mold is baked at a sufficient temperature to achieve its carbonization, with the heating rate being not more than 20.degree. C./h in the temperature range from 400.degree. to 600.degree. C. In this way, high-density and high-strength carbon artifacts showing a homogeneous fine mosaic texture of optical anisotropy can be efficiently manufactured in high carbon yield.

    摘要翻译: 用于制造含有0.5-1.5重量%喹啉可溶但不溶于吡啶的组分和至少97重量%喹啉不溶组分的高密度和高强度碳伪影的自粘碳质颗粒,其中 通过在非氧化性气氛中通过在由氟化氢和三氟化硼组成的超强酸的存在下聚合冷凝的多环烃或含有它们的物质而获得的中间相沥青来制备。 碳质颗粒被模制,模具在足够的温度下烘烤以实现其碳化,加热速率在400℃至600℃的温度范围内不超过20℃/小时。这样高 可以高产率地有效地制造显示光学各向异性的均匀的细微马赛克纹理的密度和高强度碳伪影。