公开(公告)号：US10252944B2

公开(公告)日：2019-04-09

申请号：US15072764

申请日：2016-03-17

申请人： NGK INSULATORS, LTD.

发明人： Mitsuharu Ono ,  Shuji Ueda

IPC分类号： B01D46/24 ,  C04B35/195 ,  C04B35/64 ,  B01J35/04 ,  B01J37/00 ,  B01J37/08 ,  F01N3/022 ,  C04B38/00 ,  C04B111/32 ,  C04B111/00

摘要： A honeycomb structure includes a cordierite component, and has partition walls defining a plurality of cells which extend from one end face to the other end face and form through channels for a fluid, a thermal expansion coefficient in a central axis direction is 1.2 ppm/K or more and 3.5 ppm/K or less in a temperature change of 40° C. to 800° C., and a thermal expansion coefficient in a cross-sectional direction orthogonal to the central axis direction is 0.8 ppm/K or more and 2.5 ppm/K or less in the temperature range of 40° C. to 800° C.

公开(公告)号：US11359528B2

公开(公告)日：2022-06-14

申请号：US17147741

申请日：2021-01-13

申请人： NGK Insulators, Ltd.

发明人： Koichi Sendo ,  Yu Torii ,  Shuji Ueda ,  Shungo Nagai

IPC分类号： F01N3/022 ,  B01J35/04 ,  C04B38/00

摘要： A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion provided at an open end on a first end face side or a second end face side of each of the cells, wherein the partition wall is composed of a material containing cordierite as a main component thereof, a number per unit area of pores which exist at a surface of the partition wall and which have equivalent circle diameters exceeding 3.0 μm is 1400 per mm2 or more, and, in a pore diameter distribution which indicates a cumulative pore volume of the partition wall, with a log pore diameter on a horizontal axis and a log differential pore volume (cm3/g) on a vertical axis, a half-value width of a first peak that includes a maximum value of the log differential pore volume is 0.30 or less.

公开(公告)号：US20180178206A1

公开(公告)日：2018-06-28

申请号：US15844748

申请日：2017-12-18

申请人： NGK Insulators, Ltd.

发明人： Shuji Ueda ,  Shungo Nagai ,  Takayoshi Shibayama ,  Yoshihiro Sato ,  Makoto Murai ,  Kojiro Hayashi

IPC分类号： B01J35/04 ,  B01J21/08 ,  B01J37/02 ,  B01D53/94

CPC分类号： B01J35/04 ,  B01D53/94 ,  B01J21/08 ,  B01J37/0215

摘要： A circumferential coating material which is coated on a circumferential surface of a honeycomb structure monolithically formed by extrusion, to form a circumferential coating layer, the circumferential coating material containing fused silica in a range of 20 to 75 mass %, containing a color developing agent in a range of 5 to 50 mass %, containing colloidal silica in a range of 5 to 30 mass %, and further containing a silicon based water repellent agent in a range of 1 to 10 mass % to a total mass of the fused silica, the color developing agent, and the colloidal silica.

公开(公告)号：US11612844B2

公开(公告)日：2023-03-28

申请号：US17652310

申请日：2022-02-24

申请人： NGK INSULATORS, LTD.

发明人： Yoshihiro Sato ,  Shuji Ueda ,  Koichi Sendo ,  Yutaka Ishii ,  Yuichi Tajima ,  Seiya Nakano ,  Ken Itazu

IPC分类号： B01D46/24

摘要： A pillar-shaped honeycomb structure including a plurality of first cells extending from an inlet side end surface to an outlet side end surface, and a plurality of second cells extending from the inlet side end surface to the outlet side end surface, with a porous partition wall interposed therebetween, wherein a porous film having a porosity higher than that of the partition walls is provided on a surface of each of the first cells, and at a cross-section orthogonal to the direction in which the first cells of the pillar-shaped honeycomb structure filter extend, the average thickness of the porous film in the central portion is larger than the average thickness of the porous film in the outer peripheral portion.

公开(公告)号：US11511268B2

公开(公告)日：2022-11-29

申请号：US17177377

申请日：2021-02-17

申请人： NGK INSULATORS, LTD.

发明人： Shuji Ueda ,  Shungo Nagai ,  Hiroaki Hayashi

IPC分类号： B01J35/04 ,  C04B38/00 ,  B01D46/24 ,  B01J37/00 ,  B01D39/20 ,  B01D53/88

摘要： A pillar-shaped honeycomb structure including an outer peripheral side wall, a plurality of first cells provided on an inner peripheral side of the outer peripheral side wall, the first cells extending from a first end surface to a second end surface, each opening on the first end surface and having a sealing portion with an average void ratio of 4% or less on the second end surface, and a plurality of second cells provided on the inner peripheral side of the outer peripheral side wall, the second cells extending from the first end surface to the second end surface, each having a sealing portion with an average void ratio of 4% or less on the first end surface and opening on the second end surface, the first cells and the second cells being alternately arranged adjacent to each other with a partition wall interposed therebetween.

公开(公告)号：US09333486B2

公开(公告)日：2016-05-10

申请号：US14660066

申请日：2015-03-17

申请人： NGK Insulators, Ltd.

发明人： Mitsuharu Ono ,  Fumiharu Sato ,  Shuji Ueda ,  Hiroyuki Suenobu

IPC分类号： B01J21/00 ,  B01J21/04 ,  B01J23/02 ,  B01D3/10 ,  B01D50/00 ,  B01D53/34 ,  B32B3/12 ,  G03B21/62 ,  D06N7/04 ,  B01J21/16 ,  C04B35/14 ,  C04B38/00 ,  C04B38/06 ,  B01D46/24 ,  B01D53/94 ,  B01J21/12 ,  B01J23/30 ,  B01J35/00 ,  B01J35/04 ,  F01N3/022 ,  C04B35/626 ,  C04B35/63

CPC分类号： B01J21/16 ,  B01D46/2418 ,  B01D53/945 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/20776 ,  B01D2255/2092 ,  B01D2255/30 ,  B01J21/12 ,  B01J23/30 ,  B01J35/0006 ,  B01J35/04 ,  C03C3/087 ,  C03C3/091 ,  C03C14/004 ,  C04B35/14 ,  C04B35/62665 ,  C04B35/6316 ,  C04B38/0006 ,  C04B38/0074 ,  C04B38/0096 ,  C04B38/067 ,  C04B2111/00793 ,  C04B2111/0081 ,  C04B2235/3201 ,  C04B2235/3418 ,  C04B2235/349 ,  C04B2235/36 ,  C04B2235/5436 ,  C04B2235/9607 ,  F01N3/0222 ,  Y10T428/24149 ,  C04B38/068

摘要： There is disclosed a honeycomb structure. A honeycomb structure includes a pillar-shaped honeycomb structure body having partition walls defining a plurality of cells which become through channels for a fluid and extend from a first end face to a second end face, the partition walls are constituted of a porous body having aggregates and a bonding material to bond the aggregates to one another in a state where pores are formed among the aggregates, the aggregates include molten silica particles, the bonding material includes glass, a content ratio of SiO2 in the porous body is 70 mass % or more, and a thermal expansion coefficient of the porous body at 40 to 800° C. is from 1.5 to 6.0×10−6/° C.

摘要翻译： 公开了一种蜂窝结构体。 蜂窝结构体包括柱状蜂窝结构体，其具有限定多个细胞的分隔壁，所述多个细胞变成通过流体的通道并且从第一端面延伸到第二端面，所述隔壁由具有聚集体的多孔体构成 以及在聚集体之间形成孔的状态下将聚集体彼此粘合的接合材料，所述聚集体包括熔融二氧化硅颗粒，所述接合材料包括玻璃，所述多孔体中的SiO 2的含量比为70质量％以上 ，多孔体在40〜800℃的热膨胀系数为1.5〜6.0×10 -6 /℃。

公开(公告)号：US20200039891A1

公开(公告)日：2020-02-06

申请号：US16506133

申请日：2019-07-09

申请人： NGK INSULATORS, LTD.

发明人： Shingo TOKUDA ,  Shuji Ueda ,  Takayuki Kanetake

IPC分类号： C04B38/00 ,  C04B35/80

摘要： A method for producing a honeycomb structure, the method comprising the steps of: kneading a forming raw material containing a cordierite forming material and then forming it to produce a honeycomb formed body; and firing the honeycomb formed body to provide a honeycomb structure. In the producing method, from 0.1 to 6.0 parts by mass of a magnesium silicate mineral having a 2:1 ribbon type structure per 100 parts by mass of the cordierite forming material is added to the forming raw material.

公开(公告)号：US11492295B2

公开(公告)日：2022-11-08

申请号：US16506133

申请日：2019-07-09

申请人： NGK INSULATORS, LTD.

发明人： Shingo Tokuda ,  Shuji Ueda ,  Takayuki Kanetake

IPC分类号： C04B38/00 ,  C04B35/195 ,  C04B35/80 ,  C04B40/00 ,  C04B35/622 ,  B28B3/20 ,  C04B35/64

摘要： A method for producing a honeycomb structure, the method comprising the steps of: kneading a forming raw material containing a cordierite forming material and then forming it to produce a honeycomb formed body; and firing the honeycomb formed body to provide a honeycomb structure. In the producing method, from 0.1 to 6.0 parts by mass of a magnesium silicate mineral having a 2:1 ribbon type structure per 100 parts by mass of the cordierite forming material is added to the forming raw material.

公开(公告)号：US11331613B2

公开(公告)日：2022-05-17

申请号：US17168515

申请日：2021-02-05

申请人： NGK INSULATORS, LTD.

发明人： Takayuki Kanetake ,  Shingo Tokuda ,  Shuji Ueda

IPC分类号： B01D46/24 ,  B01D39/20 ,  F01N3/022

摘要： A ceramic filter having a pillar-shaped honeycomb structure, wherein when observing a plurality of pores from a surface of partition walls with a laser microscope and plotting an equivalent circle diameter (μm) of each pore on an X-axis and a pore depth (μm) of each pore on a Y-axis on a two-dimensional coordinate system, a slope of a regression line (y/x) obtained by a least squares method in a range of 20≤x≤40 is 0 to 0.20, an average value of the pore depth of the plurality of pores is 2.5 μm to 5.0 μm, and a number density of the plurality of pores is 600/mm2 to 2450/mm2.

公开(公告)号：US11142485B2

公开(公告)日：2021-10-12

申请号：US15906173

申请日：2018-02-27

申请人： NGK INSULATORS, LTD.

发明人： Shingo Tokuda ,  Shuji Ueda

IPC分类号： C04B38/00 ,  C04B41/87 ,  C04B41/00 ,  C04B41/50 ,  B01J37/02 ,  B01J35/04 ,  C04B41/86 ,  B01D46/24 ,  B01D53/86 ,  C04B111/00

摘要： A circumferential coating material to be applied to a circumferential surface of a honeycomb structure made of ceramics formed by extrusion, the circumferential coating material including a ceramic raw material that forms a circumferential coating layer, wherein the ceramic raw material contains: a ceramic mixture of first ceramic particles having particulate shapes, and second ceramic particles having particulate shapes and an average particle diameter different from an average particle diameter of the first ceramic particles; and a fiber material having an elongated strip-like shape, wherein the ceramic mixture has particle size distribution including at least two local maximum values, and the fiber material has an average fiber length ranging from 30 to 100 μm in a longitudinal direction.