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1.发明申请公开(公告)号：US20190224606A1
公开(公告)日：2019-07-25
申请号：US16337520
申请日：2017-09-26
Applicant: DENSO CORPORATION
Inventor： Hirokatsu IMAGAWA , Hironori NIWA
Abstract: A honeycomb structural body includes: a porous cell wall that partitions a cylindrical casing; and a large number of cells extending in the axial direction X thereof and alternately blocked at an upstream end face. The large number of cells include plugged cells having plugs and penetrating cells that do not have the plugs. The plugged cells and the penetrating cells both include complete cells and incomplete cells. At least some of plugged incomplete cells of the incomplete cells have a cross-sectional area smaller than a cross-sectional area of penetrating complete cells, and are configured as blocked cells that are entirely blocked inside in the axial direction.
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公开(公告)号：US20220065146A1
公开(公告)日：2022-03-03
申请号：US17454323
申请日：2021-11-10
Applicant: DENSO CORPORATION
Inventor： Hirokatsu IMAGAWA
IPC: F01N3/022
Abstract: In an exhaust gas purification filter, a partition wall has communicating pores. Each communicating pore has a surface opening on the gas-inflow-side surface and a plurality of portions, each portion having a diameter being reduced and then increased from the surface opening, one of the portions, whose diameter is the smallest, being defined as an inlet neck portion. As viewed in cross section in a thickness direction of the partition wall, the surface opening of each communication pore has a diameter defined as a surface opening diameter, the inlet neck portion of each communication pore has a diameter defined as an inlet neck diameter. The inlet neck diameter is smaller than the surface opening diameter, and an average value of the inlet neck diameters is 15 μm or less. A surface opening ratio of the communicating pores in plan view of the gas-inflow-side partition wall surface is 40% or more.
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公开(公告)号：US20190078991A1
公开(公告)日：2019-03-14
申请号：US16191489
申请日：2018-11-15
Applicant: DENSO CORPORATION
Inventor： Kazuhiko KOIKE , Hirokatsu IMAGAWA
Abstract: A particulate matter detection element for detecting particulate matter in a gas to be measured includes flat-shaped conductor layers, flat-shaped insulating layers, a laminated structure in which the conductor layers and the insulating layers are alternately laminated, and a detecting unit having the conductor layers of different polarities as a pair of detection electrodes on a cross section of the laminated structure. The conductor layers each have a constant thickness, and include conductor layer planar portions having a stripped-pattern cross section, and tapered conductor layer end edge portions each having a triangular cross section, provided on both sides of the respective conductor layer planar portions.
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Patent Agency Ranking
公开(公告)号：US20170122179A1
公开(公告)日：2017-05-04
申请号：US15319541
申请日：2015-06-12
Applicant: DENSO CORPORATION
Inventor： Go MIYAGAWA , Hirokatsu IMAGAWA , Masayuki TAMURA
CPC classification number: F01N11/002 , F01N3/021 , F01N2330/06 , F01N2560/05 , F01N2560/06 , F01N2900/1404 , F02D41/061 , F02D41/064 , F02D41/1446 , F02D41/1466 , F02D41/1494 , F02D41/222 , G01N15/0606 , G01N15/0656 , G01N27/04 , G01N2015/0046 , Y02T10/40
Abstract: A particulate matter detection apparatus includes a particulate matter quantity detection means, a temperature detection means that detects the temperature of exhaust gas, a control unit and a heating means. The particulate matter quantity detection means includes a particulate matter deposition portion that deposits thereon part of particulate matter contained in the exhaust gas emitted from an internal combustion engine and a pair of opposite electrodes arranged apart from each other on the particulate matter deposition portion. The control unit determines a deposition quantity of the particulate matter on the particulate matter deposition portion based on an electrical signal outputted by the particulate matter quantity detection means and receives information on the temperature of the exhaust gas detected by the temperature detection means. The control unit controls the heating means to heat the particulate matter deposition portion to 300° C.-800° C. during a cold start of the internal combustion engine.
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公开(公告)号：US20200080923A1
公开(公告)日：2020-03-12
申请号：US16687737
申请日：2019-11-19
Applicant: DENSO CORPORATION
Inventor： Kazuhiko KOIKE , Hirokatsu IMAGAWA
Abstract: A method of manufacturing a particulate matter detection element for detecting particulate matter in a gas to be measured includes manufacturing flat-shaped conductor layers, flat-shaped insulating layers, a laminated structure in which the conductor layers and the insulating layers are alternately laminated, and a detecting unit having the conductor layers of different polarities as a pair of detection electrodes on a cross section of the laminated structure. The conductor layers each have a constant thickness, and include conductor layer planar portions having a stripped-pattern cross section, and tapered conductor layer end edge portions each having a triangular cross section, provided on both sides of the respective conductor layer planar portions.
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公开(公告)号：US20180195933A1
公开(公告)日：2018-07-12
申请号：US15740507
申请日：2016-06-08
Applicant: DENSO CORPORATION
Inventor： Go MIYAGAWA , Kouji ANDOH , Masayuki TAMURA , Hirokatsu IMAGAWA , Takao MISHIMA , Hideki YAMADA , Masahiro YAMAMOTO
CPC classification number: G01M15/102 , F01N11/002 , G01M15/10 , G01N15/0606 , G01N15/0656 , G01N27/04 , G01N2015/0046
Abstract: A particulate matter sensor and a particulate matter sensing system using such a sensor are provided which are capable of being produced at decreased cost and accurately measuring the temperature of a heater. The particulate matter sensor includes a deposition portion on which particulate matter contained in exhaust gas is accumulated, a pair of electrodes which are disposed on the deposition portion and separate from each other, a heater which heats the deposition portion, and a pair of heater leads which form a path through which electrical current is delivered to the heater. A sensing line is connected to at least one of the heater leads to measure a resistance of the heater lead.
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公开(公告)号：US20170131185A1
公开(公告)日：2017-05-11
申请号：US15319185
申请日：2015-06-02
Applicant: DENSO CORPORATION
Inventor： Kazuhiko KOIKE , Masayuki TAMURA , Hirokatsu IMAGAWA
CPC classification number: G01N1/2252 , G01N15/0606 , G01N15/0656 , G01N27/04 , G01N2001/2223 , G01N2015/0046
Abstract: A particulate matter detection sensor includes a particulate matter detection unit for changing the output of an electrical signal in accordance with change in the electrical characteristics due to the deposition of particulate matter contained in an exhaust gas G discharged from an internal combustion engine, and a cover member having a cylindrical cover wall and disposed to surround the particulate matter detection unit. The particulate matter detection unit includes a deposition portion on which a part of the particulate matter is deposited, and a plurality of detection electrodes disposed being spaced apart from each other on the deposition portion. The deposition portion of the particulate matter detection unit is arranged so as to be oriented towards the tip side of the cover member. The cover wall of the cover member includes a plurality of exhaust gas introduction holes formed at positions closer to the tip side than is the deposition portion.
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8.发明申请PARTICULATE MATTER DETECTION ELEMENT, PARTICULATE MATTER DETECTION SENSOR, AND METHOD OF MANUFACTURING PARTICULATE MATTER DETECTION ELEMENT 审中-公开颗粒物检测元件，颗粒物检测传感器及制造颗粒物检测元件的方法公开(公告)号：US20160334321A1
公开(公告)日：2016-11-17
申请号：US15110447
申请日：2015-01-09
Applicant: DENSO CORPORATION
Inventor： Kazuhiko KOIKE , Hirokatsu IMAGAWA
Abstract: A particulate matter detection element for detecting particulate matter in a gas to be measured includes flat-shaped conductor layers, flat-shaped insulating layers, a laminated structure in which the conductor layers and the insulating layers are alternately laminated, and a detecting unit having the conductor layers of different polarities as a pair of detection electrodes on a cross section of the laminated structure. The conductor layers each have a constant thickness, and include conductor layer planar portions having a stripped-pattern cross section, and tapered conductor layer end edge portions each having a triangular cross section, provided on both sides of the respective conductor layer planar portions.
Abstract translation: 用于检测待测气体中的颗粒物质的颗粒物质检测元件包括扁平形导体层，扁平绝缘层，交替层叠导体层和绝缘层的叠层结构，以及具有 作为层叠结构的截面上的一对检测电极的不同极性的导体层。 导体层各自具有恒定的厚度，并且包括具有剥离图案横截面的导体层平面部分和设置在各个导体层平面部分的两侧上的具有三角形横截面的锥形导体层端部边缘部分。
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