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NGK Spark Plug Co., Ltd. Patents
Assignee:
NGK Spark Plug Co., Ltd.
Address:
Nagoya, JP
No. of patents:
1206
Patents:




Patent Number Title Of Patent Date Issued
RE38491 Composition for producing low sintering temperature ceramic dielectrics and method of manufactur April 6, 2004
Powders of BaCO.sub.3, TiO.sub.2, ZnO, etc. are mixed to each other at a predetermined ratio of quantity, calcined in an atmospheric air at .pi..degree.-120.degree. C., and pulverized to obtain a calcined powder having an average grain size from 1 to 3 .mu. m, 0.1 to 20 parts-by weight
RE34484 Gold-plated electronic components December 21, 1993
Gold-plated electronic components are disclosed, as well as a process for producing the same, wherein an alloy of nickel and cobalt or an alloy containing these elements as essential ingredients is used as an undercoat for the gold-plated layer.
RE33980 Thick-film gas-sensitive element June 30, 1992
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 cata
H427 Air/fuel ratio detector February 2, 1988
An air/fuel ratio detector comprising a pump and an electrochemical cell in which both the pump and electrochemical cell comprise an oxygen ion conductive solid electrolyte sandwiched between porous electrodes. One of the elements has an insulating substrate formed on a portion of the
D497171 Electrostatic chuck October 12, 2004
D491206 Electrostatic chuck June 8, 2004
D490827 Electrostatic chuck June 1, 2004
D490096 Electrostatic chuck May 18, 2004
D490095 Electrostatic chuck May 18, 2004
D490094 Electrostatic chuck May 18, 2004
D490093 Electrostatic chuck May 18, 2004
D489740 Electrostatic chuck May 11, 2004
D489739 Electrostatic chuck May 11, 2004
D401253 Throw away tip for cutting tools November 17, 1998
D359024 Dielectric filter June 6, 1995
7615915 Spark plug November 10, 2009
A spark plug having a protrusion amount t of not smaller than 0.3 mm and satisfying a relation .theta.1+.theta.2.ltoreq.93.degree. in which .theta.1 is an included angle between virtual lines s1 and s2, and .theta.2 is an included angle between virtual lines s3 and s4 when the virtua
7614392 Diagnostic method and control apparatus for gas sensor November 10, 2009
A gas sensor diagnostic method includes: a fuel supply detecting step of detecting an interruption of a fuel supply to the internal combustion engine, and a restart of the fuel supply after the interruption of the fuel supply; a response time period accumulating step of determining a
7607340 Gas sensor October 27, 2009
In a protector (100) for protecting a detecting portion (11) of a sensor element (10) of a gas sensor (1), the opening area of individual inner introduction holes (130) and (140) formed in an inner protector (120) is 3.5 mm.sup.2 or less. In this manner, the amount and size of water
7600424 Liquid condition sensing apparatus October 13, 2009
Capacitive liquid condition sensing apparatus includes a pair of a 1-1 electrode and a 1-2 electrode arranged to form a first capacitance; a pair of a 2-1 electrode and a 2-2 electrode arranged to form a second capacitance; a circuit board formed with a sensing circuit to sense the l
7596993 Diagnostic method and apparatus for gas sensor October 6, 2009
A gas sensor diagnostic method includes the steps of counting the reversal number of times that a target air-fuel ratio for an air-fuel mixture to be supplied to an internal combustion engine reverses from a rich side to a lean side or from the lean side to the rich side through a specif
7581998 Method for regulating aground electrode position in spark plug September 1, 2009
A method and apparatus for manufacturing a spark plug, the spark plug being defined herein, the method including a center electrode position measuring step of measuring an X-directional position of the front end of the center electrode; a regulation member positioning step of positioning
7581879 Temperature sensor September 1, 2009
A mounting member 4 of a temperature sensor 1 has a vibration-resisting reinforcement portion 47 between a mounting seat 45 and a joint portion 43, so as to surround a longitudinally long portion of a sheath member 8 and thereby narrowly limit its movable range.
7580240 Via array capacitor, wiring board incorporating a via array capacitor, and method of manufacturi August 25, 2009
A via array capacitor including a capacitor body having a first main surface and a second main surface and having a structure in which dielectric layers and inner electrode layers are alternately laminated; a plurality of via conductors which conduct the inner electrode layers to eac
7575782 Method for depositing oil agent on workpiece August 18, 2009
An oil agent of the kind and amount suitable for a post-step is applied on a workpiece regardless of the kind and residual amount of an oil agent used in a pre-step. A workpiece on which a first oil agent is deposited is immersed in a degreasing solution, taken out of the degreasing
7574900 Liquid state detection sensor August 18, 2009
A liquid state detection sensor in which temperature information of a urea aqueous solution is obtained on the basis of a voltage value acquired after the start of energization of a heating resistor corresponding to a resistance value of the heating resistor (S1-S6). Damage to the heatin
7573697 Method of manufacturing capacitor for incorporation in wiring board, capacitor for incorporation August 11, 2009
A capacitor comprising: a plurality of laminated dielectric layers; a plurality of inner electrode layers each disposed between mutually adjacent ones of the dielectric layers; and dummy electrode layers respectively disposed between the dielectric layers, disposed on sides closer to
7573275 Temperature sensor control apparatus August 11, 2009
A temperature sensor control apparatus includes a reference potential section, a driving potential section set to a driving electric potential, a temperature sensor configured to vary a resistance in accordance with a temperature, and disposed between the reference potential section and
7568378 Sensor August 4, 2009
A sensor including: a detecting element (4) as defined herein; a plurality of metallic terminal members (10, 211, 221, 231, 268) as defined herein; and an insulating separator (82) as defined herein, wherein the insulating separator includes: an outer separator (183) which surrounds
7562555 Water-repellent filter, a method of manufacturing a water-repellent filter member, and gas senso July 21, 2009
A water-repellent filter member formed from a resin sheet of a porous, fibrous structure having air permeability and water repellency; a waterproof instrument and gas sensor having air permeability; and a method of manufacturing the same. A water-repellent filter member (19) is forme
7560012 Gas sensor July 14, 2009
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-cylindrical portion (6) with an air space (8) in
7559224 Sensor July 14, 2009
A sensor comprising a sensor element, a metallic housing holding therewithin the sensor element, an inner tubular member fixed to an axially rearward end of the metallic housing, and an outer tubular member radially surrounding the inner tubular member and having a radially inward cr
7557496 Spark plug which can prevent lateral sparking July 7, 2009
A spark plug including: a center electrode (20); an insulator (10) having an axial hole (12) extending in an axial direction of the center electrode (20) and holding the center electrode (20) in the axial hole (12); a cylindrical metal shell (50) surrounding the insulator (10) and ho
7557440 Wiring board and ceramic chip to be embedded July 7, 2009
A wiring board includes a substrate core and a ceramic chip to be embedded therein. The substrate core has a housing opening portion opening at a core main surface. The ceramic chip is accommodated in the housing opening portion so that the core main surface and a chip first main sur
7556745 Sintered compact for thermistor element, process for producing the same, thermistor element and July 7, 2009
A sintered body for thermistor element of the invention is a sintered body for thermistor element containing Sr, Y, Mn, Al, Fe, and O, wherein not only respective liquid crystal phases of a perovskite type oxide and a garnet type oxide are contained, but also a liquid crystal phase of at
7553078 Temperature sensor and method for producing the same June 30, 2009
A temperature sensor 10 includes a metallic cover 5, a thermistor element 1 accommodated in a front portion 5s of the metallic cover 5, first and second conductive wires 2a and 2b extending rearwards of the thermistor element 1 and transmitting a signal therefrom, a MI cable 4 in which
7550906 Spark plug having a noble-metal chip and method for manufacturing the same June 23, 2009
A noble-metal chip (30, 90) joined to at least either a center electrode or a ground electrode, the center and ground electrodes forming a spark discharge gap, and having a circumferential edge of its facing end surface (31, 91) removed so as to form an edge-removed portion (32, 92).
7534332 Gas sensor manufacturing process, and gas sensor May 19, 2009
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 metal shell; assembling
7532453 Built-in capacitor type wiring board and method for manufacturing the same May 12, 2009
In order to provide a built-in capacitor type wiring board capable of preventing misalignment of the capacitor, a capacitor built-in type wiring board is provided which includes a core board; a multilayer portion disposed on at least one side of the core board and formed by a plurali
7528534 Spark plug May 5, 2009
There is provided a spark plug wherein an insulator and a metallic shell, when observed in a section made by a plane including an axis of a spark plug, have therebetween a gap of less than 0.45 mm at a more front end side than an engagement position of a packing and a first insulator
7525814 Wiring board and method for manufacturing the same April 28, 2009
A wiring board includes a plurality of via pads disposed on a ceramic sub-core accommodated in a core board. A Cu-plated layer is formed on the surface of a conductor pad and serves as a processed face, i.e., a face to which Cu surface chemical processing is applied in order to improve
7524407 Gas sensor April 28, 2009
An oxygen sensor 10 includes an oxygen detection element 20, which assumes a hollow tubular shape extending along the axis. The oxygen detection element 20 has a closed tip end and an opened rear end. An internal electrode layer 23 is formed on an inner circumferential surface 22 of
7506534 Gas sensor and method of manufacturing the gas sensor March 24, 2009
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 shell (131), a plate packing (157),
7499789 Deterioration signal generation device for gas sensor March 3, 2009
A deterioration signal generation device for a gas sensor for simulating a deterioration signal output by a gas sensor in a deteriorated state, the gas sensor detecting the fuel-air ratio of exhaust gas from an internal combustion engine based on the concentration of particular component
7492075 Multilayer piezoelectric element, fuel injector having the piezoelectric element and piezoelectr February 17, 2009
A multilayer piezoelectric element includes at least one piezoelectric layer unit having sintered piezoelectric ceramic and electrode layers alternately stacked together in a first direction and a positioning member that, when the at least one piezoelectric layer unit is placed in an
7488896 Wiring board with semiconductor component February 10, 2009
An electronic device comprised of a wiring board with a semiconductor component. The device is unlikely to have any defects, such as cracks to a solder joint portion during a reflow process of a flip-chip connection. The semiconductor component is flip-chip bonded at a pad array at a
7487753 Glow plug energization control apparatus and method February 10, 2009
There is provided an energization control apparatus for a glow plug in an engine, including a post-start glow section to control energization of a resistance heater of the glow plug by a battery after start of the engine. The post-start glow section is configured to evaluate revolution
7487675 Micro-heater and sensor February 10, 2009
A micro-heater including a semiconductor substrate having a cavity; an insulating layer provided on an upper side of the semiconductor substrate and closing the cavity; and a heater element embedded in a portion of the insulating layer above the cavity and including a metallic material.
7484897 Optical module, optical module substrate and optical coupling structure February 3, 2009
There is provided an optical module for coupling with a fiber optic cable through an optical connector, including a module body connectable with a plug of the optical connector by a dedicated guide pin, with a side surface of the module body being opposed to a mating surface of the c
7483562 Method of detecting protrudent adhered matters and method of making spark plug using the same January 27, 2009
Protrudent matters caused by connecting metallic materials are detected with high precision and in turn offer products of high quality, and an increase of yield. The invention sets an allowable range and a non-allowable range around an outside outline (an outline of the work to be de
7481901 Method and apparatus for producing a wiring board, including film-peeling January 27, 2009
A method for manufacturing a wiring board offering efficient operations of peeling and collection of a protective film as well as preventing a lowered yield. A method for manufacturing a build-up multilayer resin wiring board, which includes a taping process S2 and a peeling process

 
 
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