专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH01184457A OXYGEN SENSOR ELEMENT 失效
公开(公告)号：JPH01184457A
公开(公告)日：1989-07-24
申请号：JP814988
申请日：1988-01-18
申请人： NGK INSULATORS LTD
发明人： OKI SHUICHIRO , ISHIGURO FUJIO
IPC分类号： G01N27/409 , G01N27/407
摘要： PURPOSE:To effectively prevent the sintering of an electrode by a heat resisting substance, to improve responsiveness and low temperature operability, and also, to prevent contamination caused by a substance to be poisoned by forming an electrode of an oxygen sensor element by a platinum group metal in which the heat resisting substance is dispersed. CONSTITUTION:The title element consists of a structure in which a heat resisting substance is dispersed in a platinum group metal. Therefore, when an electrode is subjected to heat treatment, a fine (for instance, 0.1-1.0mum) hole can be formed. As for the reason why this hole is formed, it is considered that insufficient wetting of the heat resisting substance against the platinum group metal is one factor, and in this sense, it is desirable that the heat resisting substance of insufficient wetting against the platinum group metal is used. In such a way, as the result of a fact that many holes are formed in the electrode, the gas permeability is improved, and accordingly, the responsiveness is improved.

2. 发明专利

JPH0426016A OXIDE SUPERCONDUCTOR 失效
公开(公告)号：JPH0426016A
公开(公告)日：1992-01-29
申请号：JP12951390
申请日：1990-05-19
申请人： NGK INSULATORS LTD
发明人： OKI SHUICHIRO
IPC分类号： H01L39/00 , H01B12/10
摘要： PURPOSE:To provide a high Jc uniform over the whole and allow application as a magnetism shielding material by forming honeycopmb structure with any desired section configuration. CONSTITUTION:An oxide type superconductor concerned is constructed in such an arrangement that a shell 2 and its inside are formed consolidated in so-called honeycomb structure, wherein the size and shape of the superconductor may be as any desired. In this honeycomb structure 1, honeycomb holes penetrate the superconductor in various shapes continuously and stretching long-axially. Accordingly the cells 3 constituting the honeycomb structure are arranged densely in the cross-section of the structure and oriented so that the thickness of cell bulkhead is uniform everywhere. The shape of cell may be embodies as any desired. This achieves a certain specified thickness, a high critical current density (Jc) uniform over the whole, and an enhanced magnetism shielding ability.

3. 发明专利

JPH02307810A PRODUCTION OF OXIDE SUPERCONDUCTOR STRUCTURE 失效
公开(公告)号：JPH02307810A
公开(公告)日：1990-12-21
申请号：JP12557389
申请日：1989-05-18
申请人： NGK INSULATORS LTD
发明人： OKI SHUICHIRO , SAKAI HITOSHI
IPC分类号： C01B13/32 , C01G1/00 , C01G29/00 , C23C26/02 , H01B12/00 , H01B13/00 , H05K9/00
摘要： PURPOSE:To simply obtain a large-sized oxide superconductor structure in one body by sticking molten starting material for an oxide superconductor to the surface of the substrate of a structure and calcining the substrate. CONSTITUTION:Molten starting material for an oxide superconductor made preferably of a Bi-Sr-Ca-Cu-O type compd. is stuck to the surface of the substrate of a structure inert to the compd., having heat resistance at the temp. of the molten starting material and >=1,000 deg.C melting or softening point and not causing deterioration at very low temp. and the substrate is calcined at >=800 deg.C in an atmosphere of oxygen-contg. gas.

4. 发明专利

JPH02275395A SUPERCONDUCTING MAGNETIC SHIELD TUBE 失效
公开(公告)号：JPH02275395A
公开(公告)日：1990-11-09
申请号：JP9719789
申请日：1989-04-17
申请人： NGK INSULATORS LTD
发明人： WATANABE KEIICHIRO , YOSHIDA HITOSHI , SAKAI HITOSHI , OKI SHUICHIRO
IPC分类号： G12B17/02 , G01R33/035 , H01B12/06 , H05K9/00
摘要： PURPOSE:To cut off magnetism from a magnetic source appropriately by forming a cylindrical tube of a double-layer structure having a substrate and a superconducting layer at least from the magnetic source side, with said superconducting layer provided outside, for the magnetic source to be shielded. CONSTITUTION:A superconducting shield tube is formed by selecting materials of a substrate and a superconducting layer so that the thermal expansion coefficient of the substrate is equal substantially to that of the superconducting layer and by providing the superconducting layer inside. The substrate needs only to have a prescribed thermal expansion coefficient and various materials such as a metal material, a ceramic material or a glass material can be used therefor. As for a protective layer for protecting the superconducting layer, a material therefor needs only to be excellent in resistance to shock (or resistance to cold) and various materials such as the metal material, the ceramic material, the glass material or an organic material can be used.

5. 发明专利

JPS61120055A Production of oxygen sensor 失效
标题翻译：生产氧传感器
公开(公告)号：JPS61120055A
公开(公告)日：1986-06-07
申请号：JP24275884
申请日：1984-11-16
申请人： Ngk Insulators Ltd
发明人： KITAGAWA JIRO , OKI SHUICHIRO
IPC分类号： G01N27/409 , C23F17/00 , G01N27/407 , G01N27/41 , G01N27/419 , H01M8/12
CPC分类号： G01N27/4075 , G01N27/4077 , H01M4/9058
摘要： PURPOSE: To obtain an oxygen sensor having improved responsiveness by providing plural electrodes to an oxygen ion conductive solid electrolyte, forming a porous ceramic coating on the electrode to be exposed to a gas to be measured and subjecting the part where the coating layer is formed to a heat treatment in a reducing atmosphere.
CONSTITUTION: Pt electrodes 6, 4 are formed by electroless plating or thermal decomposition method on the inside and outside surfaces of a bottomed cylindrical body 2 consisting of the solid electrolyte having oxygen ion conductivity, for example, partially stabiized zirconia. The porous ceramic coating layer 10 is then formed by plasma spraying, etc. of spinel (Al
2 O
3 .MgO), etc. on the outside electrode 4. Such assembly is subjected to the heat treatment for 0.5W5hr in a 700W900°C range in the reducing atmosphere, for example, dry gaseous H
2 or butane cracking gas contg. about 10% CO. The porosity in the surface part of the electrode 4 is thus restored by the reducing heat treatment and the oxygen sensor having the improved responsiveness in low and high temp. regions and the excellent durability is thus obtd.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了通过向氧离子导电固体电解质提供多个电极来获得具有改善的响应性的氧传感器，在电极上形成多孔陶瓷涂层以暴露于被测量的气体并使被覆层的形成部分在还原气氛中进行热处理。构成：在由具有氧离子传导性的固体电解质构成的有底筒体2的内外表面上形成Pt电极6,4，例如部分稳定的氧化锆。然后通过在外部电极4上等离子体喷涂尖晶石（Al 2 O 3·MgO）等来形成多孔陶瓷涂层10.这样的组件在700-900度的温度下进行0.5-5小时的热处理。 C在还原气氛范围内，例如干燥气态H2或丁烷裂解气体。约10％的CO，因此通过还原热处理恢复电极4的表面部分的孔隙率，并且在低温和高温下具有改善的响应性的氧传感器。因此，耐久性优异。

6. 发明专利

JP2512548B2 失效
公开(公告)号：JP2512548B2
公开(公告)日：1996-07-03
申请号：JP4809189
申请日：1989-02-28
申请人： NGK INSULATORS LTD
发明人： SHIMURA TOMOAKI , OKI SHUICHIRO , MIZUTANI YOSHIHIKO
IPC分类号： G01N27/409 , G01M17/00 , G01N27/26 , G01N27/407 , G01N27/416 , G01N27/417

7. 发明专利

JP2512142B2 失效
公开(公告)号：JP2512142B2
公开(公告)日：1996-07-03
申请号：JP9719789
申请日：1989-04-17
申请人： NGK INSULATORS LTD
发明人： WATANABE KEIICHIRO , YOSHIDA HITOSHI , SAKAI HITOSHI , OKI SHUICHIRO
IPC分类号： G12B17/02 , G01R33/035 , H01B12/06 , H05K9/00

8. 发明专利

JPH0285756A OXYGEN SENSOR 失效
公开(公告)号：JPH0285756A
公开(公告)日：1990-03-27
申请号：JP32738887
申请日：1987-12-25
申请人： NGK INSULATORS LTD
发明人： KITAGAWA JIRO , OKI SHUICHIRO
IPC分类号： G01N27/409
摘要： PURPOSE:To enhance the gas permeability of a measuring electrode and to improve low-temp. workability so the gas responsiveness is improved by providing pores of 0.01 to 5mum average pore size on the surface of the electrode formed to an oxygen ion conductive solid electrolyte. CONSTITUTION:The oxygen sensor 1 is formed with the measuring electrode 3 to be exposed to a gas to be measured and the reference electrode 4 to be exposed to a standard gas on the inside and outside surfaces of the solid electrolyte 2 formed to a blinded cylindrical shape. A protective layer 6 consisting of spinel, etc., is formed on the surface of the electrode 3 in order to be provided with the corrosion resistance and heat resistance to the gas to be measured. The electrodes 3, 4 has the pores 5 and the pores 5 are in contact with the surface of the solid electrolyte 1. The pores 5 of the electrode 3 communicate with the pores 3 of the protective layer 6 and the average size thereof is 0.01 to 5mum. The reason for limiting the average size to this range lies firstly in that the permeability of the oxygen molecules decreases with =5mum.

9. 发明专利

JPH01185440A OXYGEN SENSOR ELEMENT 失效
公开(公告)号：JPH01185440A
公开(公告)日：1989-07-25
申请号：JP844788
申请日：1988-01-20
申请人： NGK INSULATORS LTD
发明人： OKI SHUICHIRO , ISHIGURO FUJIO
IPC分类号： G01N27/409
摘要： PURPOSE:To properly enhance the gas permeability of a measuring electrode, to improve low temp. operability and, at the same time, to enhance gas response, by setting the average particle size of electrode material crystals on the surface of an electrode layer to 0.1-5.0 times the thickness of the electrode layer. CONSTITUTION:An oxygen sensor element 11 is fixed to the stepped part 15 of a housing 13 by a sealant 17 and an outside electrode 19 is electrically brought into contact with the housing to be electrically connected to the outside through the housing 13. Further, an inside electrode 21 is connected to the signal detection circuit outside the element 11 through a center electrode 23. For example, when the air/fuel ratio in exhaust gas is changed over by a computer for controlling an external engine of displacement of 1,500cc while the temp. of the exhaust gas is held to 350 deg.C to measure feedback frequency wherein sensor output changes, response is well as said frequency becomes high. In the same way, when the temp. of the exhaust gas is lowered from the temp. of 450 deg.C of the exhaust gas of the engine whose displacement is 1,500cc to temp. making sensor output weak and bringing feedback control to a stop state, low temp. operability is enhanced as a measured value becomes low.

10. 发明专利

JP2504824B2 失效
公开(公告)号：JP2504824B2
公开(公告)日：1996-06-05
申请号：JP7952189
申请日：1989-03-30
申请人： NGK INSULATORS LTD
发明人： YOSHIDA HITOSHI , SAKAI HITOSHI , OKI SHUICHIRO , WATANABE KEIICHIRO , YOSHIDA MANABU
IPC分类号： C04B35/00 , C01G1/00 , C04B35/45 , C04B35/653 , C30B29/22 , H01B12/00 , H01B12/06 , H01B13/00 , H01L39/24

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式