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公开(公告)号：US20190299201A1
公开(公告)日：2019-10-03
申请号：US16299708
申请日：2019-03-12
Applicant: NGK INSULATORS, LTD.
Inventor： Naoya TAKASE
Abstract: A honeycomb structure including a honeycomb having porous partition walls extending between inflow and outflow end faces to define cells, an outermost peripheral wall, and a pair of electrodes disposed on a side surface of the honeycomb. Each electrode is formed in a strip shape extending in a direction of the cells. In a cross section orthogonal to the extending direction of the cells, one electrode is disposed on a side opposed to the other electrode. The honeycomb has an outer peripheral region including the outer peripheral wall, a central region, and an intermediate region. An average electric resistivity A of a material constituted of the outer peripheral region, an average electric resistivity B of a material constituted of the central region and an average electric resistivity of C of a material constituted of the intermediate region satisfy the relationship: A≤B
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公开(公告)号：US20180264455A1
公开(公告)日：2018-09-20
申请号：US15914069
申请日：2018-03-07
Applicant: NGK INSULATORS, LTD.
Inventor： Naoya TAKASE
CPC classification number: B01J35/04 , B01D53/94 , F01N3/2006 , F01N3/2803 , F01N2330/30 , F01N2330/48
Abstract: A columnar honeycomb structure comprising an outer peripheral side wall having an outer peripheral side surface; a plurality of partition walls that partition and form a plurality of cells penetrating from one bottom surface to another bottom surface to form flow paths, the plurality of partition walls being disposed inside the outer peripheral side wall; and a pair of terminal connection portions arranged on the outer peripheral side wall, wherein the honeycomb structure satisfies a relationship of H1>H2 in which: H1 represents an average height of the entire honeycomb structure; and H2 represents an average height of a portion of the honeycomb structure surrounded by a straight line M1 parallel to a line segment M and located at a distance of 0.1×L1 from the line segment M toward a first direction and a straight line M2 parallel to the line segment M and located at a distance of 0.1×L2 from the line segment M toward a second direction, wherein when viewing the honeycomb structure from its bottom, the line segment M represents a line segment connecting circumferential centers of the pair of terminal connection portions and extending from one outer peripheral side surface to the other outer peripheral side surface, and L1 and L2 represent length in the first direction and the second direction perpendicular to the line segment M from a middle point O of the line segment M to the outer peripheral side surface, respectively.
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公开(公告)号：US20170321585A1
公开(公告)日：2017-11-09
申请号：US15655976
申请日：2017-07-21
Applicant: NGK INSULATORS, LTD.
Inventor： Naoya TAKASE , Yoshiyuki KASAI
CPC classification number: F01N3/2013 , F01N3/24 , F01N3/2842 , F01N2240/16 , F01N2350/04 , Y02T10/26
Abstract: A honeycomb type heating device includes a pillar-shaped honeycomb substrate having a partition wall defining and forming a plurality of cells and a circumferential wall surrounding the partition wall; a plurality of heaters adjacent to each other arranged on a circumferential surface of a circumferential wall in the circumferential direction of the circumferential surface; a connecting body arranged in the circumferential direction of the circumferential surface and electrically connecting the plurality of heaters; and a metal case housing the honeycomb substrate, the plurality of heaters, and the connecting body. Each heater is a resistance-heating type heater, the cross-sectional area of the connecting body in a cross section perpendicular to the circumferential direction of the circumferential surface is 10.0 to 30.0 mm2, and the thermal expansion coefficient of the connecting body is higher than the thermal expansion coefficient of the honeycomb substrate by 3.0×10−6/° C. or more.
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公开(公告)号：US20170276047A1
公开(公告)日：2017-09-28
申请号：US15426387
申请日：2017-02-07
Applicant: NGK INSULATORS, LTD.
Inventor： Naoya TAKASE , Yoshimasa KOBAYASHI , Yasuho AOKI
CPC classification number: F01N3/2026 , B01D53/944 , B01D53/9454 , B01D53/9495 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2073 , B01D2255/20738 , B01D2255/20761 , B01D2255/915 , B01D2255/9155 , B01D2258/01 , B01J35/04 , F01N3/101 , F01N3/2013 , F01N3/2842 , F01N2240/16 , H05B3/265 , H05B3/42 , H05B2203/014 , H05B2203/024 , H05B2214/03 , Y02T10/26
Abstract: A heater includes: a plate-like first heater substrate; an electrical heating wire that is provided on a first surface of the first heater substrate in a parallel circuit; electrodes that are connected to the electrical heating wire to allow current to flow in the electrical heating wire; and a plate-like cover substrate that covers the first surface of the first heater substrate, the electrical heating wire, and the electrodes with a second surface thereof. The electrical heating wire of the heater generates heat, so that the amount of heat is supplied. A honeycomb structure includes at least one heater that is provided so as to surround an outer wall thereof.
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公开(公告)号：US20160264419A1
公开(公告)日：2016-09-15
申请号：US15158997
申请日：2016-05-19
Applicant: NGK INSULATORS, LTD.
Inventor： Yoshimasa KONDO , Shoji YOKOI , Tatsuya TERAZAWA , Naoya TAKASE
IPC: C01B13/11
CPC classification number: C01B13/115 , C01B13/11 , C01B2201/10 , C01B2201/14 , C01B2201/32 , C01B2201/40 , C01B2201/62
Abstract: An ozone generator includes one or more electrode pairs each containing two electrodes arranged at a distance of a predetermined gap length and a power source for applying an alternating-current voltage between the two electrodes. In the ozone generator, ozone is produced when a source gas flows at least between the two electrodes and a discharge is generated between the two electrodes. The ozone generator has a discharge space formed between the two electrodes, and the ozone generator satisfies the condition of 0.5
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Patent Agency Ranking
16.发明申请公开(公告)号：US20160039672A1
公开(公告)日：2016-02-11
申请号：US14818452
申请日：2015-08-05
Applicant: NGK INSULATORS, LTD.
Inventor： Tatsuya TERAZAWA , Shoji YOKOI , Naoya TAKASE
CPC classification number: C01B13/115 , C01B2201/10 , C01B2201/22 , C01B2201/32
Abstract: An ozone generator includes a transformer, a direct current power supply unit connected to a primary side of the transformer, a reactor connected to a secondary side of the transformer, a semiconductor switch connected between one end of a primary winding of the transformer and the direct current power supply unit, and a control circuit for implementing ON-OFF control of the semiconductor switch to thereby apply alternating current voltage to the reactor. The control circuit implements control to minimize electric signal on the primary side of the transformer by updating a switching frequency by a fixed change width from a reference frequency, and determines that a failure has occurred if the number of updates by the fixed change width exceeds a threshold value.
Abstract translation: 臭氧发生器包括变压器，连接到变压器的初级侧的直流电源单元，连接到变压器的次级侧的电抗器，连接在变压器的初级绕组的一端和直接 当前电源单元和用于实现半导体开关的ON-OFF控制的控制电路，从而向反应器施加交流电压。 控制电路通过从参考频率更新开关频率固定的变化宽度来实现对变压器的初级侧的电信号最小化的控制，并且如果固定变化宽度的更新次数超过一个，则确定发生了故障 阈值。
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公开(公告)号：US20150265998A1
公开(公告)日：2015-09-24
申请号：US14630957
申请日：2015-02-25
Applicant: NGK INSULATORS, LTD.
Inventor： Yoshimasa KONDO , Shoji YOKOI , Tatsuya TERAZAWA , Naoya TAKASE
CPC classification number: B01J19/088 , B01J2219/0809 , B01J2219/0815 , B01J2219/083 , C01B13/11 , C01B13/115 , C01B2201/14 , C01B2201/22 , C01B2201/62 , H05H1/2406 , H05H2001/2418
Abstract: An electrode structural body includes a first electrode and a second electrode, and further includes a first retainer and a second retainer for fixing the first electrode and the second electrode. The first electrode and the second electrode are separated from each other, their axial directions being parallel to each other. The first electrode contains a first insulating body having a first hollow portion and a first conducting body located in the first hollow portion. The second electrode contains a second insulating body having a second hollow portion and a second conducting body located in the second hollow portion. At least in the first electrode, at least one end surface of the first conducting body is positioned inside the first hollow portion at a distance from one end surface of the first insulating body.
Abstract translation: 电极结构体包括第一电极和第二电极，并且还包括用于固定第一电极和第二电极的第一保持器和第二保持器。 第一电极和第二电极彼此分离，它们的轴向彼此平行。 第一电极包括第一绝缘体，其具有第一中空部分和位于第一中空部分中的第一导电体。 第二电极包含具有第二中空部分的第二绝缘体和位于第二中空部分中的第二导电体。 至少在第一电极中，第一导电体的至少一个端面位于与第一绝缘体的一个端面相距一定距离处的第一中空部内。
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公开(公告)号：US20150210545A1
公开(公告)日：2015-07-30
申请号：US14600504
申请日：2015-01-20
Applicant: NGK INSULATORS, LTD.
Inventor： Yoshimasa KONDO , Shoji YOKOI , Tatsuya TERAZAWA , Naoya TAKASE
IPC: C01B13/11
CPC classification number: C01B13/115 , C01B13/11 , C01B2201/10 , C01B2201/14 , C01B2201/32 , C01B2201/40 , C01B2201/62
Abstract: An ozone generator includes one or more electrode pairs each containing two electrodes arranged at a distance of a predetermined gap length and a power source for applying an alternating-current voltage between the two electrodes. In the ozone generator, ozone is produced when a source gas flows at least between the two electrodes and a discharge is generated between the two electrodes. The ozone generator has a discharge space formed between the two electrodes, and the ozone generator satisfies the condition of 0.5
Abstract translation: 臭氧发生器包括一个或多个电极对，每个电极对包含布置在预定间隙长度的距离处的两个电极和用于在两个电极之间施加交流电压的电源。 在臭氧发生器中，当源气体至少在两个电极之间流动并且在两个电极之间产生放电时，产生臭氧。 臭氧发生器具有在两个电极之间形成的放电空间，臭氧发生器满足0.5
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公开(公告)号：US20220240352A1
公开(公告)日：2022-07-28
申请号：US17659342
申请日：2022-04-15
Applicant: NGK Insulators, Ltd.
Inventor： Yukiharu MORITA , Naoya TAKASE , Yoshiyuki KASAI , Tatsushi ICHIKAWA
Abstract: An electrically heating support includes: a pillar shaped honeycomb structure including: an outer peripheral wall; and a partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the plurality of cells extending from one end face to the other end face to form a flow path; and a pair of electrode layers disposed so as to face each other across a central axis of the honeycomb structure, each of the electrode layers being disposed on a surface of the outer peripheral wall of the honeycomb structure; and a metal terminal provided on each of the electrode layers. The honeycomb structure includes a ceramic having a PTC property, and the electrode layers include a ceramic having an NTC property.
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公开(公告)号：US20210087960A1
公开(公告)日：2021-03-25
申请号：US16989068
申请日：2020-08-10
Applicant: NGK INSULATORS, LTD.
Inventor： Naoki OKAMOTO , Naoya TAKASE
Abstract: An electric heating type support includes: a pillar shaped honeycomb structure being configured to a ceramic, including: an outer peripheral wall; and a partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the cells extending from one end face to other end face to form a flow path; an electrode layer disposed on a surface of the outer peripheral wall of the pillar shaped honeycomb structure; two or more underlayers having conductivity, the underlayers being provided on the electrode layer so as to be spaced apart from each other; and a metal electrode provided on the underlayers.
A surface of each of the underlayers has a concave portion forming a space between each of the underlayers and the metal electrode.
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