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| Number | Title | Issue Date |
| 8157977 | Gas sensor A protective cover of a gas sensor includes an inner protective cover which covers at least an end portion of a sensor element, an outer protective cover which covers the inner protective cover, and an intermediate protective cover which is installed between the inn... | 04/17/2012 |
| 8147667 | Exhaust gas sensor and method of manufacture A method of manufacturing an exhaust gas sensor that includes positioning at least a portion of a subassembly of the exhaust gas sensor in a mold fixture, overmolding at least a portion of the subassembly with a ceramic material, and removing the overmolded subassem... | 04/03/2012 |
| 8075753 | Gas sensor The gas sensor includes a sensor element, a heater for heating the sensor element, the heater having a roughly cylindrical shape, a housing into which the sensor element is inserted to be held therein, and a terminal unit disposed so as to cover a rear end portion o... | 12/13/2011 |
| 8016989 | Exhaust gas sensor An exhaust gas sensor inhibits a detecting part of an exhaust gas sensor from being exposed to water and has high detection accuracy and high durability. The exhaust gas sensor has a sensor body and a protective cover. The sensor body has an outer housing. The outer... | 09/13/2011 |
| 8016990 | Protective covers for gas sensor, gas sensor and gas sensor manufacturing method A gas sensor comprises a cylindrical metallic housing, a sensor element having at a front end thereof a sensing portion and disposed axially in the housing with the sensing portion protruded from a front end of the housing, a sensor terminal fitted to a rear end of ... | 09/13/2011 |
| 7972489 | Sensor element A sensor element is used to detect a physical property of a measuring gas, preferably to determine the oxygen content or the temperature of an exhaust gas of an internal combustion engine. The sensor element contains a first solid electrolyte layer and a second soli... | 07/05/2011 |
| 7935235 | Gas sensor with sealing structure In a method of manufacturing a sensor, firstly, a plate-type detection element is inserted through an element-insertion through-hole of a first powder-compacted ring. Secondly, a flange section including at least the first powder-compacted ring is integrally assembl... | 05/03/2011 |
| 7927475 | Gas sensor A gas sensor comprising: the gas sensor element defined; the cylindrical metal shell defined herein; and the protector defined herein, wherein the protector defined herein has a double structure including the cylindrical inner cover portion and the outer cover porti... | 04/19/2011 |
| 7901556 | Gas sensor equipped with cover assembly designed to minimize splashing of sensor element with water A gas sensor is equipped with a cover assembly made up of an outer cover and an inner cover in which a gas sensor element is disposed. The outer cover has an outer gas inlet and an outer gas outlet formed closer to a top end of the cover assembly than the outer gas ... | 03/08/2011 |
| 7850833 | Oxygen sensor and air/fuel ratio control system An oxygen sensor generating an accurate output concerning low-concentration exhaust gas positioned downstream of a three-way catalyst. The oxygen sensor includes an exhaust gas side electrode exposed to an exhaust gas; a reference gas side electrode exposed to a ref... | 12/14/2010 |
| 7758736 | Gas sensor A detecting element (10) of a gas sensor (1) is held with a detecting portion (11) projecting from a front-end engaging-portion (56) of a metallic shell (50) and is accommodated for protection in an inner protector (120) in ... | 07/20/2010 |
| 7722750 | Gas sensor with improved heat resistance A gas sensor comprises an atmosphere-side cover, ventilation filter, and filter cover as well as a sensing element and housing. The atmosphere-side cover has i) a first section of a first diameter located on a tip-end side in a axial direction of the housing and fix... | 05/25/2010 |
| 7708869 | Gas sensor A gas sensor has a sensor element detecting a concentration of a specified gas, a housing fixing this element to a gas pipe to expose it to measuring-gas flow, and cylindrical inner and outer covers of a different radius, configured in concentric configuration, havi... | 05/04/2010 |
| 7686932 | Gas sensor A gas sensor including: a cylindrical metal shell; a detection element having a detection portion provided on a front end side thereof, the detection element being fixed inside the metal shell while the detection portion of the detection element protrudes from a fro... | 03/30/2010 |
| 7575663 | Gas sensor A gas sensor is disclosed which attains high response speed, low power consumption, superior water splash resistance and a little setting direction dependency and setting angle dependency. In this gas sensor, a measured gas room is provided inside an inner cover, an... | 08/18/2009 |
| 7560012 | Gas sensor A gas sensor is constructed as follows. A protector (4) covering around a gas sensing element (2) has an inner hollow-cylindrical portion (6) and an outer hollow-cylindrical portion (7) that is provided coaxially with the inner hollow-cyl... | 07/14/2009 |
| 7534332 | Gas sensor manufacturing process, and gas sensor A process for manufacturing a gas sensor, the gas sensor including a gas detecting element, cylindrical metal shell, and cylindrical protector as defined herein, the process comprising: applying a lubricant to an outer circumference of a leading end portion of the m... | 05/19/2009 |
| 7445700 | Gas sensor and nitrogen oxide sensor A gas sensor for measuring an amount of a measurement gas component, including a solid electrolyte having an internal space, a gas-introducing port for introducing measurement gas from an external space into the internal space, diffusion rate-determining means betwe... | 11/04/2008 |
| 7434448 | Sensor A sensor for determining a physical property such as the concentration of a gas component or the temperature of a measuring gas, e.g., the exhaust gas of internal combustion engines, has a sensor element which is secured in a housing and is surrounded at an end sect... | 10/14/2008 |
| 7413641 | Gas sensor with improved structure of protective cover An improved structure of a protective cover assembly of a gas sensor is provided. The protective cover assembly is of a double-walled structure made up of an inner and an outer cylindrical cover with gas holes. A sensing element is disposed within the inner cover. A... | 08/19/2008 |
| 7407567 | Gas sensor element and gas sensor A gas sensor element including: a solid electrolyte layer having a first surface and a second surface; a first electrode formed on the first surface of the solid electrolyte layer; a second electrode formed on the second surface of the solid electrolyte layer; and a... | 08/05/2008 |
| 7404883 | Insulation bushing assembly for an exhaust gas sensor An insulation bushing assembly for use with an exhaust gas sensor. The insulation bushing assembly includes an insulation bushing having a passageway defining a surface, and a contact plate assembly having a contact plate coupled with the insulation bushing. A resil... | 07/29/2008 |
| 7390385 | Gas sensor A protective cover of a gas sensor includes an inner protective cover which covers at least an end portion of a sensor element, an outer protective cover which covers the inner protective cover, and an intermediate protective cover which is installed between the inn... | 06/24/2008 |
| 7340942 | Sensor including a sensor element having electrode terminals spaced apart from a connecting end thereof A sensor having a terminal connection structure in which an elongated sensor element (21) is inserted, from its rear end through relative movement, into a metallic-terminal-member retainer. Metallic terminal members (51) are elastically deformed and pr... | 03/11/2008 |
| 7318886 | Gas sensor having improved structure for minimizing thermal damage An improved structure of a gas sensor is provided which is designed to minimize thermal damage to a water-repellent filter installed in a base end portion of the gas sensor. The gas sensor has an elastic seal installed in an opening of the base end portion of the ga... | 01/15/2008 |
| 7310991 | Explosion-proof gas sensor An explosion-proof gas sensor has a measuring element (2), which generates a measured signal that depends on the concentration of the measured gas and is delimited against the environment by means of a porous, gas-permeable and sintered metal body (7).... | 12/25/2007 |
| 7287413 | Gas sensor unit and sensor cap A gas sensor unit including a gas sensor and a sensor cap. The gas sensor includes a gas detecting element, an electrode provided on the gas detecting element and a sensor terminal connecting to the electrode for transmitting an output signal from the gas detecting ... | 10/30/2007 |
| 7260979 | Oxygen sensor An oxygen sensor includes a sensor element, a holder having a hole through which the sensor element is arranged, a sealing positioning portion for sealing a clearance between the sensor element and the holder and positioning the sensor element in the holder and bein... | 08/28/2007 |
| 7254984 | Sensor A sensor for measuring a physical property of a measuring gas, in particular the oxygen concentration or the temperature in the exhaust gas of an internal combustion engine in a motor vehicle, has a housing, a measuring element whose end section protrudes from the h... | 08/14/2007 |
| 7241370 | Protective covers for gas sensor, gas sensor and gas sensor manufacturing method A gas sensor comprises a cylindrical metallic housing, a sensor element having at a front end thereof a sensing portion and disposed axially in the housing with the sensing portion protruded from a front end of the housing, a sensor terminal fitted to a rear end of ... | 07/10/2007 |
| 7237430 | Method and apparatus for enhanced detection of a specie using a gas chromatograph The invention includes a method and apparatus for a chromatography system having a chromatographic column for separating gases in a mixture from one another and an electrochemical gas sensor coupled to the chromatographic column for detecting a gas being emitted fro... | 07/03/2007 |
| 7234341 | Gas sensor and method of manufacturing the gas sensor An object is to provide a gas sensor which can suppress positional shift of a to-be-held member such as a gas detection element, as well as a method of manufacturing the gas sensor. A gas sensor (101) includes a gas detection element (111), a metallic ... | 06/26/2007 |
| 7222408 | Structure of gas sensor ensuring high degree of gas-tight seal An improved structure of a gas sensor is provided which is designed for achieving desired crimping of an end portion of a sensor housing to establish a higher degree of gas-tight seal between the housing and a sensor element. The sensor element is fitted within the ... | 05/29/2007 |
| 7222516 | Gas sensor, gas sensor cap, and gas sensor unit The invention presents a gas sensor low in cost and easy to form a terminal member, a gas sensor cap connected to the gas sensor for sending an output signal to an external device, and a gas sensor unit capable of holding a stable electrically connected state betwee... | 05/29/2007 |
| 7211222 | Gas sensor A powder filler is stuffed in a filler space defined between a housing and a gas sensing element so as to airtightly seal a clearance between the housing and the gas sensing element. The powder filler contains grains whose diameter is in a range from 80 μm to 5,000... | 05/01/2007 |
| 7210331 | Detecting element for determining the concentration of a gas component in a measuring gas, and method for manufacturing the detecting element A detecting element is described, in particular a gas sensor for detecting the concentration of a gas component in a measuring gas, including a sensor element which is exposable to the measuring gas and has a connecting end section which is contacted by connecting c... | 05/01/2007 |
| 7181840 | Method of manufacturing a gas sensor An improved manufacturing method for a gas sensor is provided which is capable of establishing a required hermetic seal in a body of the gas sensor. The method includes preparing a sensor assembly including a housing, an air cover, an insulation porcelain, and a sen... | 02/27/2007 |
| 7178382 | Structure of gas sensor designed to reduce mechanical damage to sensor element An improved structure of a gas sensor designed to withstand physical impact which may result in damage such as cracks to a sensor element built in the gas sensor. Specifically, the gas sensor includes a buffer provided by a clearance between an air cover a porcelain... | 02/20/2007 |
| 7163609 | Gas sensor having a laminate comprising solid electrolyte layers and alumina substrate A gas sensor (1a) having a laminate including an alumina substrate (11) having a heating resister (115) embedded in the alumina substrate (11); a first oxygen-ion conductive solid electrolyte layer (131) containing zirconia ... | 01/16/2007 |
| 7159447 | Gas sensor equipped with gas inlet designed to create desired flow of gas A gas sensor equipped with a protective gas cover which defines therein a gas chamber to which a sensor element is exposed. The protective gas cover has gas inlet holes through which gas to be measured is admitted. The protective cover also has dimples formed adjace... | 01/09/2007 |
