公开(公告)号：US20100200427A1

公开(公告)日：2010-08-12

申请号：US12700089

申请日：2010-02-04

申请人： Kazuhiko Koike ,  Kiyomi Kobayashi

发明人： Kazuhiko Koike ,  Kiyomi Kobayashi

IPC分类号： G01N27/26 ,  C04B35/64

CPC分类号： C04B35/4885 ,  C04B2235/3225 ,  C04B2235/6025 ,  C04B2235/656 ,  C04B2235/77 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/85 ,  C04B2235/96 ,  C04B2235/9607 ,  G01N27/4075

摘要： A solid electrolyte is made of zirconia grains containing yttria and alumina grains dispersed in the zirconia grains. In the solid electrolyte, the yttria content per zirconia content is within a range of 2 to 10 mol. %, the relative density is not less than 93%, and the average particle size Rz of the zirconia grains is not more than 2 μm, an average particle size Ra of the alumina grains is not more than 1 μm. The average particle size Ra of the alumina grains is smaller than the average particle size Rz of the zirconia grains. An average distance value ALa between the alumina grains is not more than 2 μm, and a standard deviation SLa thereof is not more than 0.8. The solid electrolyte satisfies a relationship of (SLa/ALa)×Rz≦0.9.

摘要翻译： 固体电解质由分散在氧化锆颗粒中的氧化钇和氧化铝颗粒的氧化锆颗粒制成。 在固体电解质中，每氧化锆含量的氧化钇含量在2〜10mol的范围内。 ％，相对密度不小于93％，氧化锆颗粒的平均粒径Rz不大于2μm，氧化铝颗粒的平均粒径Ra不大于1μm。 氧化铝粒子的平均粒径Ra小于氧化锆粒子的平均粒径Rz。 氧化铝颗粒之间的平均距离值ALa不大于2μm，标准偏差SLa不大于0.8。 固体电解质满足（SLa / ALa）×Rz＆nlE; 0.9的关系。

公开(公告)号：US09624133B2

公开(公告)日：2017-04-18

申请号：US12700089

申请日：2010-02-04

申请人： Kazuhiko Koike ,  Kiyomi Kobayashi

发明人： Kazuhiko Koike ,  Kiyomi Kobayashi

IPC分类号： C04B35/488 ,  G01N27/407

CPC分类号： C04B35/4885 ,  C04B2235/3225 ,  C04B2235/6025 ,  C04B2235/656 ,  C04B2235/77 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/85 ,  C04B2235/96 ,  C04B2235/9607 ,  G01N27/4075

摘要： A solid electrolyte is made of zirconia grains containing yttria and alumina grains dispersed in the zirconia grains. In the solid electrolyte, the yttria content per zirconia content is within a range of 2 to 10 mol. %, the relative density is not less than 93%, and the average particle size Rz of the zirconia grains is not more than 2 μm, an average particle size Ra of the alumina grains is not more than 1 μm. The average particle size Ra of the alumina grains is smaller than the average particle size Rz of the zirconia grains. An average distance value ALa between the alumina grains is not more than 2 μm, and a standard deviation SLa thereof is not more than 0.8. The solid electrolyte satisfies a relationship of (SLa/ALa)×Rz≦0.9.

公开(公告)号：US09618473B2

公开(公告)日：2017-04-11

申请号：US13490687

申请日：2012-06-07

申请人： Kiyomi Kobayashi

发明人： Kiyomi Kobayashi

IPC分类号： G01N27/407

CPC分类号： G01N27/4078

摘要： A gas sensor has a cylindrical housing case, a gas sensor element as a sensor component, and a filler portion. The filler portion is formed between the inner surface of the cylindrical housing case and the outer surface of the gas sensor element. The filler portion is filled with filler powder composed of talc as a layered compound. Talc is a principal ingredient of the filler powder. The space formed between the cylindrical housing case and the gas sensor element is sealed with the filler powder in the filler portion. The filler powder in the filler portion has a degree of c-axis orientation within a range of 60% to 85%, The filler powder in the filler portion has a porosity of not more than 10%.

公开(公告)号：US08168053B2

公开(公告)日：2012-05-01

申请号：US11652471

申请日：2007-01-12

申请人： Kiyomi Kobayashi ,  Makoto Nakae ,  Toshikazu Hirose

发明人： Kiyomi Kobayashi ,  Makoto Nakae ,  Toshikazu Hirose

IPC分类号： G01N27/419

CPC分类号： G01N27/4071

摘要： A gas sensing member has a unit structure and a porous protective layer disposed on the unit structure. The unit structure has a solid electrolyte body, a gas measurement electrode disposed on a surface of the body and exposed to a measured gas entering at a gas inlet, a reference gas electrode disposed on another surface of the body and exposed to a reference gas, and a heater disposed close to the body. The heater has a heater substrate and heating elements disposed in the heater substrate. The heating elements heat the body. The heater substrate has side corner areas placed on side corners of the unit structure and being adjacent to the heating elements. The protective layer is disposed on the gas inlet such that the side corner areas are not covered with the protective layer and are directly exposed to the measured gas.

摘要翻译： 气体检测构件具有单元结构和设置在单元结构上的多孔保护层。 该单元结构具有固体电解质体，气体测量电极，其设置在主体的表面上并暴露于进入气体入口的测量气体，设置在主体的另一表面上并暴露于参考气体的参考气体电极， 和靠近身体设置的加热器。 加热器具有加热器基板和设置在加热器基板中的加热元件。 加热元件加热身体。 加热器基板具有放置在单元结构的侧角上且与加热元件相邻的侧角区域。 保护层设置在气体入口上，使得侧角区域不被保护层覆盖并且直接暴露于测量的气体。

公开(公告)号：US20080210575A1

公开(公告)日：2008-09-04

申请号：US12039096

申请日：2008-02-28

申请人： Takahiko NONOGAKI ,  Kiyomi Kobayashi ,  Takehito Kimata ,  Zhenzhou Su

发明人： Takahiko NONOGAKI ,  Kiyomi Kobayashi ,  Takehito Kimata ,  Zhenzhou Su

IPC分类号： G01N27/26

CPC分类号： G01N33/0037 ,  G01N27/4071 ,  Y02A50/245

摘要： In an oxygen sensor for installation in the exhaust gas system of a vehicle for detecting a concentration of NOx in exhaust gas downstream from a catalytic converter, in which the exhaust gas is passed through a protective layer to an electrode disposed at one side of a solid electrolyte in a sensor element of the oxygen sensor, the protective layer is formed with a combination of values of thickness and porosity which provide improved sensitivity in detecting low levels of NOx in the exhaust gas.

摘要翻译： 在用于安装在用于检测催化转化器下游的排气中的NOx浓度的车辆的废气系统中的氧传感器中，其中废气通过保护层到设置在固体一侧的电极 在氧传感器的传感器元件中的电解质，保护层由厚度和孔隙率的组合形成，其在检测废气中的低水平的NOx时提供了改进的灵敏度。

公开(公告)号：US06478941B2

公开(公告)日：2002-11-12

申请号：US09922716

申请日：2001-08-07

申请人： Gang E ,  Kiyomi Kobayashi ,  Yasumichi Hotta ,  Namitsugu Fujii

发明人： Gang E ,  Kiyomi Kobayashi ,  Yasumichi Hotta ,  Namitsugu Fujii

IPC分类号： G01N27409

CPC分类号： G01N27/4075 ,  C23C18/08 ,  C23C18/14 ,  C23C18/165

摘要： A gas sensing element has a solid electrolytic body, a reference gas side electrode provided on a surface of the solid electrolytic body so as to be exposed to a reference gas, and a measured gas side electrode provided on another surface of the solid electrolytic body so as to be exposed to a measured gas. A crystal face strength ratio of the measured gas side electrode according to X-ray diffraction is 0.7≦{I(200)/I(111)} or 0.6≦{I(220)/I(111)}.

公开(公告)号：US08058592B2

公开(公告)日：2011-11-15

申请号：US12054826

申请日：2008-03-25

申请人： Takehito Kimata ,  Kiyomi Kobayashi

发明人： Takehito Kimata ,  Kiyomi Kobayashi

IPC分类号： H05B3/02 ,  B32B9/00

CPC分类号： G01N27/4067 ,  H05B3/03 ,  H05B2203/022 ,  Y10T428/31529 ,  Y10T428/31681

摘要： A gas sensor is equipped with a built-in ceramic heater. The gas sensor detects the concentration of a predetermined gas component contained in the exhaust gas. The ceramic heater has a heater base member made of ceramic, a heating element formed in the inside of the heater base material, and a pair of external electrode pads that is electrically connected to the output terminals for the outer leads. The external electrode pads, the heating element, and the heater leads are made of base metal. The outer surface of each external electrode pad is covered only with a dense protective film made of noble metal such as gold (Au), silver (Ag), platinum (Pt), rhodium (Rh), and palladium (Pd).

摘要翻译： 气体传感器配有内置陶瓷加热器。 气体传感器检测废气中包含的预定气体成分的浓度。 陶瓷加热器具有由陶瓷制成的加热器基座部件，形成在加热器基材的内部的加热元件和与外部引线的输出端子电连接的一对外部电极焊盘。 外部电极焊盘，加热元件和加热器引线由贱金属制成。 每个外部电极焊盘的外表面仅被金（Au），银（Ag），铂（Pt），铑（Rh）和钯（Pd）等贵金属制成的致密保护膜覆盖。

公开(公告)号：US20080190767A1

公开(公告)日：2008-08-14

申请号：US11959964

申请日：2007-12-19

申请人： Makoto NAKAE ,  Kiyomi Kobayashi

发明人： Makoto NAKAE ,  Kiyomi Kobayashi

IPC分类号： G01N27/30

CPC分类号： G01N27/4071

摘要： A laminated gas sensor includes a solid electrolyte layer, a measurement gas chamber, a reference gas chamber, a measurement gas chamber formation layer, and a reference gas chamber formation layer. The measurement gas chamber formation layer has an opposite pair of inner side surfaces that extend in a longitudinal direction of the solid electrolyte layer and face each other in a lateral direction of the solid electrolyte layer through the measurement gas chamber. The reference gas chamber formation layer has an opposite pair of inner side surfaces that extend in the longitudinal direction and face each other in the lateral direction through the reference gas chamber. Further, at least one of the inner side surfaces of the measurement gas chamber formation layer is located more inside the laminated gas sensor than a corresponding one of the inner side surfaces of the reference gas chamber formation layer in the lateral direction.

摘要翻译： 层叠气体传感器包括固体电解质层，测量气体室，参考气体室，测量气体室形成层和参考气体室形成层。 测量气室形成层具有沿着固体电解质层的纵向方向延伸并且通过测量气体室在固体电解质层的横向彼此面对的相对的一对内侧表面。 参考气室形成层具有相对的一对内侧表面，其在纵向方向上延伸并且在横向方向上通过参考气体室彼此面对。 此外，测量气体室形成层的内侧表面中的至少一个位于层叠气体传感器内比在参考气体室形成层的内侧表面中相对应的横向方向上更靠内侧。

公开(公告)号：US20050224348A1

公开(公告)日：2005-10-13

申请号：US11104522

申请日：2005-04-13

申请人： Motoaki Satou ,  Kiyomi Kobayashi ,  Yasufumi Suzuki

发明人： Motoaki Satou ,  Kiyomi Kobayashi ,  Yasufumi Suzuki

IPC分类号： G01N27/409 ,  G01N27/26 ,  G01N27/407

CPC分类号： G01N27/4077

摘要： An improved structure of a gas sensor is provided which is designed to establish a desired degree of gas/liquid tight sealing between a sensor element and a housing. The gas sensor includes a powder seal fitted in a chamber defined between the sensor element and the housing. The dimensions of the powder seal and the chamber are selected to enhance gas/liquid tight properties of the powder seal.

摘要翻译： 提供了一种气体传感器的改进的结构，其被设计成在传感器元件和壳体之间建立所需程度的气/液密封。 气体传感器包括装配在限定在传感器元件和壳体之间的腔室中的粉末密封件。 选择粉末密封件和腔室的尺寸以增强粉末密封件的气/液密封性能。

公开(公告)号：US06632338B2

公开(公告)日：2003-10-14

申请号：US09877125

申请日：2001-06-11

申请人： Namitsugu Fujii ,  Motoaki Satou ,  Kiyomi Kobayashi ,  Yasumichi Hotta

发明人： Namitsugu Fujii ,  Motoaki Satou ,  Kiyomi Kobayashi ,  Yasumichi Hotta

IPC分类号： G01N2741

CPC分类号： G01N27/4077

摘要： A second protective layer is a ceramic porous protective layer comprising coarse particles and fine particles structurally arranged in such a manner that interparticle cavities formed between the coarse particles are filled with the fine particles. At least either of the coarse particles and the fine particles contain at least one selected from the group consisting of &ggr;-Al2O3, &thgr;-Al2O3, &dgr;-Al2O3 and solid solution having the same crystal structure as those of &ggr;-Al2O3, &thgr;-Al2O3, &dgr;-Al2O3.

摘要翻译： 第二保护层是包括粗颗粒和细颗粒的陶瓷多孔保护层，其结构地布置成使得在粗颗粒之间形成的颗粒间隙被细颗粒填充。 粗颗粒和细颗粒中的至少任一种含有选自γ-Al 2 O 3，θ-Al 2 O 3，δ-Al 2 O 3和与γ-Al 2 O 3，θ-Al 2 O 3具有相同晶体结构的固溶体中的至少一种 ，Δ-Al2O3