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公开(公告)号：US11383228B2
公开(公告)日：2022-07-12
申请号：US16299802
申请日：2019-03-12
Applicant: NGK INSULATORS, LTD.
Inventor： Ai Ikoma , Yoshiyuki Kasai
Abstract: A conductive honeycomb structure that is divided into four equal portions in a flow path direction of cells in the structure to form four regions of A, B, C, and D from a side closer to a first end face, and an average value of electric resistances measured between two points in each of the four regions is represented as RA, RB, RC, and RD in this order from the side closer to the first end face. A relational expression of RA≤RB≤RC≤RD (excluding RA=RB=RC=RD) is satisfied provided that the two points being determined so that a distance between a pair of electrode layers arranged on an outer peripheral side wall of the structure is the longest in the cross section perpendicular to the flow path direction of the cells.
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公开(公告)号：US20220214205A1
公开(公告)日：2022-07-07
申请号：US17656464
申请日：2022-03-25
Applicant: NGK Insulators, Ltd.
Inventor： Takao OHNISHI , Daishi TANABE , Akifumi MORISHITA
IPC: G01F23/263 , C04B37/02
Abstract: An electrode embedded ceramic structure includes: a first ceramic layer; an electrode layer formed on the first ceramic layer; and a second ceramic layer covering the first ceramic layer and the electrode layer, the second ceramic layer being thinner than the first ceramic layer. In a cross section of the first ceramic layer, the electrode layer, and the second ceramic layer along a laminating direction in this electrode embedded ceramic structure, T1 and T2 satisfy Equation (T2−T1)/T2≤0.15, where T1 denotes a least thickness in the second ceramic layer, and T2 denotes an average thickness of the second ceramic layer.
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公开(公告)号：US11378542B2
公开(公告)日：2022-07-05
申请号：US16452714
申请日：2019-06-26
Applicant: NGK INSULATORS, LTD.
Inventor： Osamu Nakasone , Taku Okamoto , Nobukazu Ikoma
IPC: G01N27/407 , G01N27/41 , G01N33/00
Abstract: A gas sensor detects the concentration of a specific gas on the basis of a pump current that flows when oxygen is pumped out from a measurement chamber, so that an oxygen concentration in the measurement chamber becomes a predetermined low concentration, the oxygen that is pumped out being oxygen that is generated when the specific gas is reduced in measurement chamber in a case where the specific gas is an oxide or being oxygen that is generated when a gas obtained as a result of conversion of the specific gas to an oxide is reduced in the measurement chamber in a case where the specific gas is a non-oxide. Further, the gas sensor corrects the pump current or the concentration of the specific gas on the basis of the oxygen concentration of the measurement-object gas when the measurement-object gas is in a rich atmosphere.
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公开(公告)号：US11353267B2
公开(公告)日：2022-06-07
申请号：US16898745
申请日：2020-06-11
Applicant: NGK INSULATORS, LTD.
Inventor： Yutaro Fumoto , Tatsuo Kawaguchi
Abstract: A heat exchanger includes: a hollow pillar shaped honeycomb structure, a first cylindrical member, a second cylindrical member, a cylindrical guide member, and an upstream cylindrical member. A communication port is provided between the downstream end portion of the guide member and the second cylindrical member or at the guide member. The second cylindrical member has a horn shape in which a diameter of the upstream end portion of the second cylindrical member is increased radially outward. The upstream cylindrical member has a flange portion, and a rising position of the flange portion is located on a more downstream side than the upstream end portion of the first cylindrical member.
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公开(公告)号：US11333055B2
公开(公告)日：2022-05-17
申请号：US16555005
申请日：2019-08-29
Applicant: NGK INSULATORS, LTD.
Inventor： Taku Okamoto , Osamu Nakasone
Abstract: A catalyst deterioration diagnosis method is a method for a system. The system includes a stepped transmission or a continuously variable transmission connected to an internal combustion engine, a catalyst into which an exhaust gas from the internal combustion engine is introduced, and a gas sensor having sensitivity to ammonia that outputs a detection value corresponding to a component of an exhaust gas that has passed through the catalyst. The catalyst deterioration diagnosis method includes the following steps. Monitoring of temporary increase of a detection value of the gas sensor is started, and thereby a temporarily increased amount of the detection value of the gas sensor is acquired. The monitoring is started when upshifting of the stepped transmission or pseudo-upshifting of the continuously variable transmission is performed. Whether or not the temporarily increased amount is larger than a threshold amount is determined.
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Patent Agency Ranking
公开(公告)号：US11332849B2
公开(公告)日：2022-05-17
申请号：US16366292
申请日：2019-03-27
Applicant: NGK INSULATORS, LTD.
Inventor： Ryosuke Hattori , Shoichiro Yamaguchi , Hidetsugu Shimokata
Abstract: A method of producing periodic polarization inversion structures requires the provision of first electrode piece part-arrays, each having electrode piece parts on a first main face of a ferroelectric crystal substrate. A voltage is applied on the first electrode piece part-arrays to form first periodic polarization inversion structures. Second electrode piece part-arrays are provided, each having electrode piece parts between the adjacent plural first periodic polarization inversion structures. A voltage is applied on the second electrode piece part-arrays to form second polarization inversion structures.
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公开(公告)号：US20220151060A1
公开(公告)日：2022-05-12
申请号：US17445738
申请日：2021-08-24
Applicant: NGK Electronics Devices, Inc. , NGK Insulators, Ltd. , Fujitsu Optical Components Limited
Inventor： Noboru KUBO , Masato ISHIZAKI , Kento TAKAHASHI
Abstract: A terminal substrate includes a signal terminal disposed on a terminal surface of an insulation ceramic layer. An insulation resin layer of a flexible substrate includes a first surface facing the terminal surface, and a second surface on an opposite side of the first surface. A first signal pad disposed on the first surface is joined to the signal terminal. A first penetration conductive part penetrates the insulation resin layer from the first signal pad. A first signal line is disposed on the second surface. A second penetration conductive part penetrates the insulation resin layer from the first signal line. A second signal line is disposed on the first surface. A third penetration conductive part penetrates the insulation resin layer from the second signal line. A second signal pad is disposed on the second surface.
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公开(公告)号：US20220149811A1
公开(公告)日：2022-05-12
申请号：US17579678
申请日：2022-01-20
Applicant: NGK INSULATORS, LTD.
Inventor： Ryosuke HATTORI , Keiichiro ASAI , Tomoyoshi TAI , Yudai UNO
IPC: H03H9/02 , H03H3/10 , H01L41/312
Abstract: A bonded body includes a supporting substrate, piezoelectric material substrate and a multilayer film, between the supporting substrate and piezoelectric material substrate. The multilayer film includes a lamination structure having a first layer, second layer, third layer and fourth layer in the order. The first layer and third layer are composed of silicon oxides, and the second layer and fourth layer are composed of metal oxides. The refractive index of the second layer is higher than the refractive index of the first layer and refractive index of the third layer. The refractive index of the second layer is different from the refractive index of the fourth layer.
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公开(公告)号：US11329285B2
公开(公告)日：2022-05-10
申请号：US16537757
申请日：2019-08-12
Applicant: NGK INSULATORS, LTD.
Inventor： Yukinobu Yura , Shigeki Okada
Abstract: Disclosed is a lithium complex oxide sintered plate including a plurality of primary grains having a layered rock-salt structure, the primary grains being bonded. The lithium complex oxide has a composition represented by the formula: Lix(Co1-yMy)O2±δ (wherein, 1.0≤x≤1.1, 0
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公开(公告)号：US20220134487A1
公开(公告)日：2022-05-05
申请号：US17451211
申请日：2021-10-18
Applicant: NGK INSULATORS, LTD.
Inventor： Shinji SUZUKI , Takafumi KIMATA , Takahiro TOMITA
Abstract: A joined body includes a junction target, an underlying layer, an electrode part, and a fixed layer. The conductive underlying layer is fixed on a surface of the junction target. The electrode part is fixed on the underlying layer. The conductive fixed layer is fixed on the underlying layer with the electrode part interposed therebetween. Respective porosities of the underlying layer and the fixed layer are each not higher than 10%.
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