公开(公告)号：US4720394A

公开(公告)日：1988-01-19

申请号：US880013

申请日：1986-06-30

申请人： Takao Kojima ,  Akira Nakano ,  Toshitaka Matsuura ,  Akio Takami

发明人： Takao Kojima ,  Akira Nakano ,  Toshitaka Matsuura ,  Akio Takami

IPC分类号： G01N27/12

CPC分类号： G01N27/12

摘要： A roughened surface is formed on an insulating ceramics substrate having an electrode pattern by bonding or partially thrusting ceramics particles to or in the substrate, and a gas-sensitive metal oxide thick film is firmly bonded to the roughened surface.

公开(公告)号：US4596132A

公开(公告)日：1986-06-24

申请号：US665359

申请日：1984-10-26

申请人： Akio Takami ,  Toshitaka Matsuura ,  Nobuo Kawai ,  Toshihiko Kimura

发明人： Akio Takami ,  Toshitaka Matsuura ,  Nobuo Kawai ,  Toshihiko Kimura

IPC分类号： G01N27/00 ,  G01N27/04 ,  G01N27/12 ,  G01N27/409

CPC分类号： G01N27/12

摘要： A gas component detecting plug including a gas component-sensitive element, lead wires connected to the gas component-sensitive element, a tubular or board-like insulator which supports both the gas component-sensitive element and the lead wires, and an enclosure, the insulator being sealed to the enclosure so that the gas component-sensitive element is positioned on a leg portion side, characterized in that a spacer is disposed and retained in a gap formed between the insulator and the enclosure, in that a space on a head portion side formed by the insulator, enclosure, spacer and electrode wires is filled with glass and in that a rubbery elastic member having an insulating property is inserted in the head portion side. The gas component detecting plug is superior in water-proofness, gas-tightness, heat insulating property and productivity.

摘要翻译： 一种气体成分检测塞，包括气体成分敏感元件，连接到气体成分敏感元件的引线，支撑气体成分敏感元件和引线的管状或板状绝缘体以及外壳， 绝缘体被密封到外壳，使得气体成分敏感元件位于腿部侧，其特征在于，间隔件设置并保持在形成在绝缘体和外壳之间的间隙中，其中头部上的空间 由绝缘体，外壳，间隔物和电极线形成的侧面填充有玻璃，并且具有绝缘性的橡胶弹性构件插入头部侧。 气体成分检测塞的防水性，气密性，隔热性和生产率优异。

公开(公告)号：US5202154A

公开(公告)日：1993-04-13

申请号：US565994

申请日：1990-08-13

申请人： Toshitaka Matsuura ,  Keizo Furusaki ,  Mineji Nasu ,  Akio Takami

发明人： Toshitaka Matsuura ,  Keizo Furusaki ,  Mineji Nasu ,  Akio Takami

IPC分类号： G01N27/12

CPC分类号： G01N27/12

摘要： The invention relates to a method of producing a gas sensor element having a porous film formed by a thick-film technique on a ceramic substrate surface so as to cover selected portions of electrode films precedingly formed on the substrate surface. The electrode material is a noble metal such as platinum. Both the electrode films and the gas sensitive porous thick-film are formed by known methods. To improve the contact between the gas sensitive porous thick-film and the electrode films both mechanically and electrically and stabilize the internal resistance of the sensor element by depositing a noble metal such as platinum at the interface between the porous thick-film and each electrode film, the porous thick-film is impregnated with a solution of a noble metal compound such as chloroplatinic acid and thereafter maintained in a reducing gas atmosphere having a controlled humidity in the range from 5 to 90% (relative humidity) at a temperature in the range from 10.degree. C. to 135.degree. C.

摘要翻译： 本发明涉及一种制造气体传感器元件的方法，该气体传感器元件具有通过厚膜技术在陶瓷基板表面上形成的多孔膜，以覆盖在基板表面上形成的电极膜的选定部分。 电极材料是贵金属如铂。 通过已知的方法形成电极膜和气敏多孔厚膜。 为了通过机械和电气来改善气体敏感性多孔厚膜和电极膜之间的接触，并且通过在多孔厚膜和每个电极膜之间的界面上沉积贵金属如铂来稳定传感器元件的内阻 多孔厚膜用氯铂酸等贵金属化合物的溶液浸渍，然后保持在5〜90％（相对湿度）范围内的受控湿度的还原气体气氛中，温度范围 从10℃到135℃

公开(公告)号：US4958514A

公开(公告)日：1990-09-25

申请号：US273621

申请日：1988-11-17

申请人： Akio Takami ,  Toshitaka Matsuura ,  Keizo Furusaki

发明人： Akio Takami ,  Toshitaka Matsuura ,  Keizo Furusaki

IPC分类号： G01N27/12

CPC分类号： G01N27/12

摘要： A gas sensing element, such as may be used to sense the presence of oxygen contained in the exhaust from a burner or internal combustion engine, whereby, by preventing the re-sintering of functional layers of the sensing element, a deterioration of the performance of the element under high-temperature operating conditions is prevented. The inventive sensing element includes a ceramic susbtrate, an electrode layer formed on the ceramic substrate, a first functional layer overlying the ceramic susbtrate and the electrode layer and which contains a transition metal oxide as a main component, and a second functional layer that cover the first functional layer and which contains 1 to 30 wt % of an anti-sintering agent and has a transition metal oxide as a main component.

摘要翻译： 诸如可以用于感测来自燃烧器或内燃机的废气中所含的氧的存在的气体感测元件，由此通过防止感测元件的功能层的再烧结，性能的恶化 在高温运行条件下防止了元件。 本发明的传感元件包括陶瓷芯片，形成在陶瓷基片上的电极层，覆盖陶瓷电极和电极层的第一功能层，其中含有过渡金属氧化物作为主要成分，第二功能层覆盖 第一功能层，含有1〜30重量％的耐烧结剂，并具有过渡金属氧化物作为主要成分。

公开(公告)号：US4909066A

公开(公告)日：1990-03-20

申请号：US281881

申请日：1988-12-08

申请人： Toshitaka Matsuura ,  Keizo Furusaki ,  Akio Takami

发明人： Toshitaka Matsuura ,  Keizo Furusaki ,  Akio Takami

IPC分类号： G01N27/12

CPC分类号： G01N27/12

摘要： A gas sensor has a ceramic substrate carrying a pair of electrodes embedded therein, which substrate has an opening bored at a surface portion thereof so as to expose tip portions of the electrodes. A thick gas-sensitive film is provided at the opening in such a manner that a gap between the electrode tip portions is filled by the gas-sensitive film while the metallic material of the electrodes is caused to precipitate on the boundary between the electrodes and the gas-sensitive film, so that the performance characteristics of the sensor is stabilized and its durability is improved.

摘要翻译： 气体传感器具有承载嵌入其中的一对电极的陶瓷基板，该基板在其表面部分处具有开口，以露出电极的尖端部分。 在开口处设置厚的气敏膜，使得电极末端部分之间的间隙被气敏膜填充，同时电极的金属材料沉淀在电极和边界之间的边界上 气敏膜，使传感器的性能稳定，耐久性提高。

公开(公告)号：US4857275A

公开(公告)日：1989-08-15

申请号：US27357

申请日：1987-03-18

申请人： Keizo Furusaki ,  Mineji Nasu ,  Toshitaka Matsuura ,  Akio Takami ,  Teppei Okawa

发明人： Keizo Furusaki ,  Mineji Nasu ,  Toshitaka Matsuura ,  Akio Takami ,  Teppei Okawa

IPC分类号： G01N27/12 ,  G01N27/22

CPC分类号： G01N27/12

摘要： A laminar gas-sensitive thick film consisting of ceramic semiconductor and metallic catalyzer is formed across a pair of electrodes carried by a ceramic substrate, and the nature of metallic catalyzer on an outer surface layer of the thick film is different from that of metallic catalyzer in that portion of the thick film which is in the proximity of the electrodes.

摘要翻译： 由陶瓷半导体和金属催化剂组成的层状气体敏感膜由穿过陶瓷基板的一对电极形成，并且厚膜外表面层上的金属催化剂的性质与金属催化剂的性质不同 位于电极附近的厚膜的那部分。

公开(公告)号：US06344134B1

公开(公告)日：2002-02-05

申请号：US09232001

申请日：1999-01-15

申请人： Tessho Yamada ,  Noboru Ishida ,  Toshitaka Matsuura ,  Yoshiro Noda ,  Nobuhiro Hayakawa ,  Norihiko Nadanami ,  Satoshi Sugaya ,  Takaki Otsuka ,  Masashi Ando ,  Takafumi Oshima

发明人： Tessho Yamada ,  Noboru Ishida ,  Toshitaka Matsuura ,  Yoshiro Noda ,  Nobuhiro Hayakawa ,  Norihiko Nadanami ,  Satoshi Sugaya ,  Takaki Otsuka ,  Masashi Ando ,  Takafumi Oshima

IPC分类号： G01N27407

CPC分类号： G01N27/417

摘要： An apparatus and method using a two-serial space sensor (having first and second internal spaces 2,3) for accurately measuring NOx concentration in gas, e.g., exhausted from an internal combustion engine. Both NOx (nitrogen oxide) and oxygen are forced to be partially dissociated in the first space 2 to an oxygen concentration level of 2×10−7 to 2×10−10 atm by pumping out oxygen from the first space 2. The NOx concentration is determined based on the second current measured in the second space 4 and based on the NO dissociation percentage in the first chamber which is 0.5-50%, or preferably 2-20%. The NOx measurement accuracy is further improved when the above oxygen concentration level is maintained from 2×10−8 to 2×10−9 and the temperature drift of the sensor is maintained within ±5° C. under a sensor temperature range of 700-900° C.

摘要翻译： 一种使用两串联空间传感器（具有第一和第二内部空间2,3）的装置和方法，用于精确测量例如从内燃机排出的气体中的NOx浓度。 通过从第一空间2中抽出氧，迫使NOx（氮氧化物）和氧在第一空间2中部分地离解为2x10-7至2×10-10大气压的氧浓度水平。基于 在第二空间4中测量的第二电流，并且基于第一室中的NO解离百分比为0.5-50％，或优选2-20％。 在700-900℃的传感器温度范围内，当上述氧气浓度水平保持在2×10 -8至2×10 -9，并且传感器的温度漂移保持在±5℃以内时，NOx测量精度进一步提高。