公开(公告)号：US4908119A

公开(公告)日：1990-03-13

申请号：US91964

申请日：1987-09-01

申请人： Toshitaka Saito ,  Hiromi Sano ,  Soji Ota ,  Syohei Udo

发明人： Toshitaka Saito ,  Hiromi Sano ,  Soji Ota ,  Syohei Udo

IPC分类号： G01N27/406 ,  G01N27/407 ,  G01N27/416

CPC分类号： G01N27/4077 ,  G01N27/4067

摘要： Outer air serving as a reference gas for determining oxygen concentration is guided to a hollow portion of a core. The core is formed in an insulating cylinder whose distal end is closed and whose proximal end is open to receive the reference gas. An opening is formed on the outer surface of the core, to communicate with the hollow portion. An oxygen concentration sensor element made of a solid-state electrolyte layer having first and second electrode layers one on each surface thereof is mounted such that it closes the opening. A sheet member made of an insulating sheet is wound around the sensor element mounted on the sensor element, and is fixed thereon. A window is formed in the sheet so as to expose the surface of the sensor element. A heater is formed around the window. Wiring layers respectively connected to both terminals of the heater are formed on the sheet. Wiring layers adapted to contact the first and second electrode layers of the sensor element are also formed on the sheet. The four wiring layers are respectively guided to grooves formed in the outer surface of the proximal end of the core. A protective layer in the form of a porous insulator is formed on the outer surface of the sheet member.

摘要翻译： 作为用于测定氧浓度的参考气体的外部空气被引导到芯的中空部分。 芯体形成在绝缘筒体中，其绝缘体的顶端封闭，其近端开口以接收参考气体。 在芯的外表面上形成有与中空部连通的开口。 由固体电解质层制成的氧浓度传感器元件，其在其每个表面上具有第一和第二电极层，以使其闭合开口。 由绝缘片制成的薄片构件缠绕在安装在传感器元件上的传感器元件上并固定在其上。 在片材中形成窗口以露出传感器元件的表面。 在窗户周围形成加热器。 分别连接到加热器的两个端子的接线层形成在片材上。 适于接触传感器元件的第一和第二电极层的接线层也形成在片材上。 四个布线层分别被引导到形成在芯的近端的外表面中的凹槽。 在片材的外表面上形成多孔绝缘体形式的保护层。

公开(公告)号：US5948225A

公开(公告)日：1999-09-07

申请号：US861226

申请日：1997-05-21

申请人： Toru Katafuchi ,  Kiyomi Kobayashi ,  Naoto Miwa ,  Hiromi Sano ,  Toshitaka Saito

发明人： Toru Katafuchi ,  Kiyomi Kobayashi ,  Naoto Miwa ,  Hiromi Sano ,  Toshitaka Saito

IPC分类号： G01N27/409 ,  G01N27/407

CPC分类号： G01N27/4075

摘要： An oxygen sensor element includes a solid electrolyte having cavities on a surface thereof and an electrode formed on the surface of the solid electrolyte. In a method of producing the oxygen sensor element, a solution containing a noble metal compound for nucleus formation is first applied to an electrode forming portion of the solid electrolyte to form a coating film. Then, the coating film is heat-treated to form a nucleus forming portion where noble metal nuclei are deposited. Subsequently, metal plating is applied to the nucleus forming portion to form a plating film deeply entering the cavities. Thereafter, the plating film is burned to form the electrode deeply entering the cavities.

摘要翻译： 氧传感器元件包括在其表面上具有空腔的固体电解质和形成在固体电解质表面上的电极。 在制造氧传感器元件的方法中，首先将含有形成核的贵金属化合物的溶液施加到固体电解质的电极形成部分以形成涂膜。 然后，对涂膜进行热处理，形成析出贵金属核的成核部。 随后，对核形成部分施加金属电镀以形成深入到空腔中的镀膜。 此后，电镀膜被燃烧以形成深入空腔的电极。

公开(公告)号：US5660661A

公开(公告)日：1997-08-26

申请号：US462210

申请日：1995-06-05

申请人： Tomio Sugiyama ,  Masatoshi Suzuki ,  Hiromi Sano ,  Toshitaka Saito ,  Satoru Nomura

发明人： Tomio Sugiyama ,  Masatoshi Suzuki ,  Hiromi Sano ,  Toshitaka Saito ,  Satoru Nomura

IPC分类号： G01N27/406 ,  G01N27/407 ,  B32B9/00

CPC分类号： B32B18/00 ,  C04B35/119 ,  C04B35/486 ,  G01N27/4067 ,  G01N27/4071 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/5445 ,  C04B2235/6025 ,  C04B2237/343 ,  C04B2237/348 ,  C04B2237/68 ,  C04B2237/704

摘要： A measuring electrode and a reference plate are formed on the front and rear surfaces, respectively, of the electrolytic plate. The vent plate is provided with a vent channel. The heater base comprises a heating element. The electrolytic plate is made of a green sheet of zirconium oxide consisting of 5 to 7 molar % Y.sub.2 O.sub.3 and 0 to 5 parts by weight of aluminum oxide. The average particle diameter of the zirconium oxide powder is less than 2.0 .mu.m. The green sheet of zirconium oxide has a thickness of 50 to 300 .mu.m. The heater base is made of a green sheet of aluminum oxide consisting of aluminum oxide powder having an average particle diameter of less than 1.0 .mu.m and 0 to 10 parts by weight of zirconium oxide or yttria-stabilized zirconium oxide. The green sheet of aluminum oxide is at least 4 times the thickness of the green sheet of zirconium oxide. To complete the oxygen sensor, these four components are sintered together at 1300.degree. to 1600.degree. C. to be integrated.

摘要翻译： 测量电极和参考板分别形成在电解板的前表面和后表面上。 通风板设有排气通道。 加热器基座包括加热元件。 电解板由5〜7摩尔％的Y 2 O 3和0〜5重量份的氧化铝构成的氧化锆的生片构成。 氧化锆粉末的平均粒径小于2.0μm。 生坯的氧化锆片的厚度为50〜300μm。 加热器基座由平均粒径小于1.0μm的氧化铝粉末和氧化锆或氧化钇稳定的氧化锆为0〜10重量份的氧化铝生坯片构成。 氧化铝的生片是氧化锆生片的厚度的至少4倍。 为了完成氧传感器，将这四种组分在1300℃至1600℃下烧结在一起以进行整合。

公开(公告)号：US06951601B1

公开(公告)日：2005-10-04

申请号：US08838910

申请日：1997-04-11

申请人： Akio Tanaka ,  Naoto Miwa ,  Toshitaka Saito ,  Hiromi Sano ,  Kazunori Suzuki ,  Masaya Fujimoto

发明人： Akio Tanaka ,  Naoto Miwa ,  Toshitaka Saito ,  Hiromi Sano ,  Kazunori Suzuki ,  Masaya Fujimoto

IPC分类号： G01N27/41 ,  G01N27/406 ,  G01N27/407 ,  G01N27/409

CPC分类号： G01N27/4075 ,  G01N27/4067

摘要： The oxygen concentration detector of the present invention includes a sensor element having a solid electrolyte and having an external electrode and an internal electrode provided on the external surface and the internal surface, respectively, and a heater provided adjacent to the internal surface of the sensor element, in which a high-emissivity layer consisting of a material having a high emissivity is provided on the internal surface of the sensor element and/or the surface of the heater.

摘要翻译： 本发明的氧浓度检测器具有固体电解质的传感器元件，分别具有设置在外表面和内表面上的外部电极和内部电极，以及设置在传感器元件的内表面附近的加热器 其中在传感器元件的内表面和/或加热器的表面上设置由具有高发射率的材料构成的高发射率层。

公开(公告)号：US5935399A

公开(公告)日：1999-08-10

申请号：US792737

申请日：1997-01-31

申请人： Akio Tanaka ,  Naoto Miwa ,  Hiromi Sano ,  Toshitaka Saito ,  Katsuhiro Ishikawa

发明人： Akio Tanaka ,  Naoto Miwa ,  Hiromi Sano ,  Toshitaka Saito ,  Katsuhiro Ishikawa

IPC分类号： G01N27/407

CPC分类号： G01N27/4075

摘要： An air-fuel ratio sensing element comprises a cup-shaped solid electrolyte with one end opened and the other end closed, an external electrode provided on an outer wall surface of the solid electrolyte so as to be exposed to measured gas, and an internal electrode provided on an inner wall surface of the solid electrolyte in a confronting relationship to the external electrode. A first insulating layer, made of a gas-permeable and nonconductive porous material, is provided on the external electrode at least in a region used for detecting of an air-fuel ratio. A second insulating layer is provided outside the first insulating layer and, a heater layer as provided between the first insulating layer and the second insulating layer.

摘要翻译： 空燃比检测元件包括一端敞开而另一端闭合的杯形固体电解质，设置在固体电解质的外壁表面上以暴露于测量气体的外部电极，以及内部电极 以与外部电极相对的关系设置在固体电解质的内壁表面上。 至少在用于检测空燃比的区域中，在外部电极上设置由透气且不导电的多孔材料制成的第一绝缘层。 第二绝缘层设置在第一绝缘层的外侧，以及设置在第一绝缘层和第二绝缘层之间的加热器层。

公开(公告)号：US06254926B1

公开(公告)日：2001-07-03

申请号：US09360147

申请日：1999-07-26

申请人： Toru Katafuchi ,  Kiyomi Kobayashi ,  Naoto Miwa ,  Hiromi Sano ,  Toshitaka Saito

发明人： Toru Katafuchi ,  Kiyomi Kobayashi ,  Naoto Miwa ,  Hiromi Sano ,  Toshitaka Saito

IPC分类号： B05D512

CPC分类号： G01N27/4075

摘要： An oxygen sensor element includes a solid electrolyte having cavities on a surface thereof and an electrode formed on the surface of the solid electrolyte. In a method of producing the oxygen sensor element, a solution containing a noble metal compound for nucleus formation is first applied to an electrode forming portion of the solid electrolyte to form a coating film. Then, the coating film is heat-treated to form a nucleus forming portion where noble metal nuclei are deposited. Subsequently, metal plating is applied to the nucleus forming portion to form a plating film deeply entering the cavities. Thereafter, the plating film is burned to form the electrode deeply entering the cavities.

摘要翻译： 氧传感器元件包括在其表面上具有空腔的固体电解质和形成在固体电解质表面上的电极。 在制造氧传感器元件的方法中，首先将含有形成核的贵金属化合物的溶液施加到固体电解质的电极形成部分以形成涂膜。 然后，对涂膜进行热处理，形成析出贵金属核的成核部。 随后，对核形成部分施加金属电镀以形成深入到空腔中的镀膜。 此后，电镀膜被燃烧以形成深入空腔的电极。

公开(公告)号：US4476008A

公开(公告)日：1984-10-09

申请号：US541001

申请日：1983-10-11

申请人： Hiromi Sano ,  Masatoshi Suzuki ,  Masaya Fujimoto ,  Masahiro Shibata ,  Toshitaka Saito ,  Mitihiro Yamakawa

发明人： Hiromi Sano ,  Masatoshi Suzuki ,  Masaya Fujimoto ,  Masahiro Shibata ,  Toshitaka Saito ,  Mitihiro Yamakawa

IPC分类号： G01N27/41 ,  B05D1/12 ,  G01N27/407 ,  G01N27/409 ,  G01N27/58

CPC分类号： G01N27/4075 ,  G01N27/407

摘要： An oxygen gas concentration-sensing device comprises a solid electrolyte body which is prepared from an oxygen ion-permeable metal oxide and whose first surface is exposed to the gas to be sensed and the second surface is exposed to a reference gas. First and second electrodes are respectively pressed against the first and second surface of the solid electrolyte body. The first electrode exposed to the gas is covered with a porous gas diffusion-resisting layer. This gas diffusion-resisting layer is chosen to have an average pore-size ranging from 300 .ANG. to 400 .ANG..

摘要翻译： 氧气浓度检测装置包括由氧离子可透过金属氧化物制备的固体电解质体，其第一表面暴露于待检测气体，第二表面暴露于参考气体。 第一和第二电极分别压靠固体电解质体的第一和第二表面。 暴露于气体的第一电极被多孔气体扩散阻挡层覆盖。 选择该气体扩散阻隔层具有范围从300安培到400安培的平均孔径。

公开(公告)号：US5447618A

公开(公告)日：1995-09-05

申请号：US226551

申请日：1994-04-12

申请人： Tomio Sugiyama ,  Masatoshi Suzuki ,  Hiromi Sano ,  Toshitaka Saito ,  Satoru Nomura

发明人： Tomio Sugiyama ,  Masatoshi Suzuki ,  Hiromi Sano ,  Toshitaka Saito ,  Satoru Nomura

IPC分类号： G01N27/409 ,  G01N27/406 ,  G01N27/407 ,  G01N27/417 ,  H01L49/00 ,  G01N27/26

CPC分类号： B32B18/00 ,  C04B35/119 ,  C04B35/486 ,  G01N27/4067 ,  G01N27/4071 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/5445 ,  C04B2235/6025 ,  C04B2237/343 ,  C04B2237/348 ,  C04B2237/68 ,  C04B2237/704

摘要： A measuring electrode and a reference plate are formed on the front and rear surfaces, respectively, of the electrolytic plate. The vent plate is provided with a vent channel. The heater base comprises a heating element. The electrolytic plate is made of a green sheet of zirconium oxide consisting of 5 to 7 molar % Y.sub.2 O.sub.3 and 0 to 5 parts by weight of aluminum oxide. The average particle diameter of the zirconium oxide powder is less than 2.0 .mu.m. The green sheet of zirconium oxide has a thickness of 50 to 300 .mu.m. The heater base is made of a green sheet of aluminum oxide consisting of aluminum oxide powder having an average particle diameter of less than 1.0 .mu.m and 0 to 10 parts by weight of zirconium oxide or yttria-stabilized zirconium oxide. The green sheet of aluminum oxide is at least 4 times the thickness of the green sheet of zirconium oxide. To complete the oxygen sensor, these four components are sintered together at 1300.degree. to 1600.degree. C. to be integrated.

摘要翻译： 测量电极和参考板分别形成在电解板的前表面和后表面上。 通风板设有排气通道。 加热器基座包括加热元件。 电解板由5〜7摩尔％的Y 2 O 3和0〜5重量份的氧化铝构成的氧化锆的生片构成。 氧化锆粉末的平均粒径小于2.0μm。 生坯的氧化锆片的厚度为50〜300μm。 加热器基座由平均粒径小于1.0μm的氧化铝粉末和氧化锆或氧化钇稳定的氧化锆为0〜10重量份的氧化铝生坯片构成。 氧化铝的生片是氧化锆生片的厚度的至少4倍。 为了完成氧传感器，将这四种组分在1300℃至1600℃下烧结在一起以进行整合。

公开(公告)号：US06174489B1

公开(公告)日：2001-01-16

申请号：US09140422

申请日：1998-08-26

申请人： Kiyomi Kobayashi ,  Naoto Miwa ,  Toshitaka Saito ,  Hiromi Sano ,  Namitsugu Fujii

发明人： Kiyomi Kobayashi ,  Naoto Miwa ,  Toshitaka Saito ,  Hiromi Sano ,  Namitsugu Fujii

IPC分类号： C07B3332

CPC分类号： G01N27/4073

摘要： A method for manufacturing an oxygen sensor unit of the type which includes at least a shaped body of a solid electrolyte, an inner electrode provided on an inside surface of the shaped body and exposed to a reference gas, an outer electrode provided on an outside surface of the shaped body and exposed to a gas to be measured, and a porous protective layer covering the outer electrode and a portion of the shaped body adjoining to said outer electrode wherein the solid electrolyte is made of a mixture of zirconia and a stabilizer therefor and is constituted of a sintered product of partially stabilized zirconia. The method is characterized in that the partially stabilized, sintered zirconia is obtained according to a high temperature sintering process which includes at least the step of sintering the mixture at a temperature of 1200° C. or over for a duration of 2 to 6 hours wherein a value obtained by integrating a variation in the sintering temperature with the duration in the sintering process is in the range of 300 to 1500° C.·hour.

摘要翻译： 一种制造氧传感器单元的方法，该氧传感器单元至少包括固体电解质的成形体，设置在成形体的内表面上并暴露于参考气体的内电极，设置在外表面上的外电极 并暴露于要测量的气体，以及覆盖外电极的多孔保护层和与所述外电极相邻的成形体的一部分，其中固体电解质由氧化锆及其稳定剂的混合物制成， 由部分稳定化的氧化锆的烧结体构成。 该方法的特征在于，部分稳定的烧结氧化锆根据高温烧结方法获得，其至少包括在1200℃或更高温度下烧结混合物2至6小时的步骤，其中 通过将烧结温度的变化与烧结过程中的持续时间相结合而获得的值在300〜1500℃的范围内。

公开(公告)号：US5707503A

公开(公告)日：1998-01-13

申请号：US549209

申请日：1995-10-27

申请人： Yasumichi Hotta ,  Hiromi Sano ,  Toshitaka Saito ,  Masatoshi Suzuki ,  Naoto Miwa

发明人： Yasumichi Hotta ,  Hiromi Sano ,  Toshitaka Saito ,  Masatoshi Suzuki ,  Naoto Miwa

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

CPC分类号： G01N27/4075

摘要： According to the present invention, an oxygen sensor element includes a solid electrolyte having a side surface at one side thereof, the side surface being contactable with a gas to be measured, a skeletal electrode provided on the side surface and having a plurality of pore portions, each of the pore portions passing through the skeletal electrode up to the solid electrolyte, and a reactive electrode made of a porous film and provided in each of the pore portions, a thickness of the porous film being smaller than that of said skeletal electrode. An area percentage (SH/SZ) which is a ratio of a total area (SH) of the reactive electrode to a total area (SZ) of the skeletal electrode and the reactive electrode is in a range from 10 to 50%, an average area (SA) of the pore portions is 100 .mu.m.sup.2 or less, a film thickness of the skeletal electrode is in a range from 1.5 to 4 .mu.m, and the film thickness of the reactive electrode is in a range from 0.6 to 1.5 .mu.m. The oxygen sensor element is superior in the heat resistance characteristics and the response characteristics.

摘要翻译： 根据本发明，氧传感器元件包括固体电解质，其一侧具有侧表面，侧表面可与待测气体接触，骨架电极设置在侧表面上并具有多个孔部分 每个孔部分通过骨架电极直到固体电解质，以及由多孔膜制成的反应性电极，并设置在每个孔部分中，多孔膜的厚度小于所述骨架电极的厚度。 作为骨架电极和反应性电极的反应电极的总面积（SH）与总面积（SZ）的比的面积百分比（SH / SZ）在10〜50％的范围内，平均 孔部的面积（SA）为100μm以下，骨架电极的膜厚在1.5〜4μm的范围内，反应电极的膜厚在0.6〜1.5μm的范围内 m。 氧传感器元件的耐热特性和响应特性优异。