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公开(公告)号：US20170276280A1
公开(公告)日：2017-09-28
申请号：US15465659
申请日：2017-03-22
Applicant: NGK INSULATORS, LTD.
Inventor： Yoshimasa KOBAYASHI , Kisuke YAMAMOTO , Yunie IZUMI , Takashi NORO
CPC classification number: F16L41/02 , C04B37/025 , C04B37/026 , C04B2237/062 , C04B2237/064 , C04B2237/122 , C04B2237/123 , C04B2237/365 , C04B2237/402 , C04B2237/406 , C04B2237/58 , C04B2237/708 , C04B2237/72
Abstract: A joined body 10 includes a ceramic body 12, a metal member 14, and a joint portion 15 that joins the ceramic body 12 and the metal member 14 together. The joint portion 15 includes a first joint layer 16 joined to the ceramic body 12 and a second joint layer 18 joined to the metal member 14. The first joint layer 16 is disposed on the ceramic body 12 side and contains an alloy that contains Fe and Cr as main components, and a compound having a thermal expansion coefficient of 4.0×10−6 (/° C.) or lower is dispersed in the first joint layer 16. The second joint layer 18 is disposed on the metal member 14 side, contains an alloy that contains Fe and Cr as main components, and has a larger thermal expansion coefficient than the first joint layer 16.
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公开(公告)号：US20220275744A1
公开(公告)日：2022-09-01
申请号：US17644369
申请日：2021-12-15
Applicant: NGK INSULATORS, LTD.
Inventor： Yusuke OSHITA , Kisuke YAMAMOTO , Takahiro TOMITA
Abstract: A tubular member for an exhaust gas treatment device according to at least one embodiment of the present invention includes: a tubular main body made of a metal; and an insulating layer formed at least on an inner peripheral surface of the tubular main body. The insulating layer contains glass containing a crystalline substance, and the insulating layer has a porosity of from 1% to 12%.
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Patent Agency Ranking
公开(公告)号：US20230278929A1
公开(公告)日：2023-09-07
申请号：US18162800
申请日：2023-02-01
Applicant: NGK Insulators, Ltd.
Inventor： Kazuya HOSODA , Kyohei ATSUJI , Kisuke YAMAMOTO , Takahiro TOMITA
IPC: C04B35/195 , C04B38/00
CPC classification number: C04B35/195 , C04B38/0006 , C04B2235/96 , C04B2235/428 , C04B2235/3481 , C04B2235/5436
Abstract: A composite sintered body contains a silicon phase and a cordierite phase. In the composite sintered body, I1/(I1+I2) is not smaller than 0.70 and not larger than 0.80, where I1 and I2 represent peak intensities of a (111) plane of silicon and a (110) plane of cordierite, respectively, which are obtained by the X-ray diffraction method. Further, in the composite sintered body, a median diameter of silicon particles, based on a volume standard, is not smaller than 9 μm.
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公开(公告)号：US20190351578A1
公开(公告)日：2019-11-21
申请号：US16526026
申请日：2019-07-30
Applicant: NGK Insulators, Ltd.
Inventor： Takafumi KIMATA , Kenichi HIDAKA , Yoshio KIKUCHI , Masaki ISHIKAWA , Kisuke YAMAMOTO , Kenji MORIMOTO
Abstract: A ceramic formed body extrusion method for forming a ceramic formed body having a wall-shaped or plate-shaped formed portion by using an extrusion die provided with a slit for extrusion of a ceramic formed body from a raw material for forming, the slit including a slit former stage unit located on an upstream side in an extrusion direction in the extrusion and a slit latter stage unit located on a downstream side in the extrusion direction, the slit latter stage unit having a width of three to 27 times a width of the slit former stage unit, and by extruding a raw material containing a first particle having an aspect ratio of two or more and less than 300 such that the raw material passes though the slit former stage unit of the extrusion die and then passes through the slit latter stage unit.
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公开(公告)号：US20230294082A1
公开(公告)日：2023-09-21
申请号：US18162786
申请日：2023-02-01
Applicant: NGK Insulators, Ltd.
Inventor： Kazuya HOSODA , Kyohei ATSUJI , Kisuke YAMAMOTO , Takahiro TOMITA
IPC: B01J27/224 , B01J21/12 , B01J35/04 , B01J35/10 , B01J35/00 , B01J37/00 , B01J37/08 , B01D53/94 , F01N3/20 , F01N3/28
CPC classification number: B01J27/224 , B01J21/12 , B01J35/04 , B01J35/1076 , B01J35/0033 , B01J37/0009 , B01J37/08 , B01D53/94 , F01N3/2026 , F01N3/2828 , B01D2255/9155 , F01N2370/04
Abstract: A composite sintered body contains a silicon phase, a cordierite phase, and a high-resistance silicon carbide phase. The content of silicon in the composite sintered body to the composite sintered body is not lower than 30 mass % and not higher than 50 mass %. The content of cordierite in the composite sintered body to the composite sintered body is not lower than 10 mass % and not higher than 50 mass %. The content of high-resistance silicon carbide in the composite sintered body to the composite sintered body is not lower than 20 mass % and not higher than 50 mass %.
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公开(公告)号：US20190351577A1
公开(公告)日：2019-11-21
申请号：US16526011
申请日：2019-07-30
Applicant: NGK Insulators, Ltd.
Inventor： Takafumi KIMATA , Kenichi HIDAKA , Yoshio KIKUCHI , Masaki ISHIKAWA , Kisuke YAMAMOTO , Kenji MORIMOTO
Abstract: A ceramic formed body extrusion method for forming a ceramic formed body having a wall-shaped or plate-shaped formed portion by using an extrusion die provided with a slit for extrusion of a ceramic formed body from a raw material for forming, the slit including a slit former stage unit located on an upstream side in an extrusion direction in the extrusion and a slit latter stage unit located on a downstream side in the extrusion direction, the slit latter stage unit having a width of three to 27 times a width of the slit former stage unit, and by extruding a raw material containing a first particle having an aspect ratio of two or more and less than 300 such that the raw material passes though the slit former stage unit of the extrusion die and then passes through the slit latter stage unit.
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公开(公告)号：US20170282402A1
公开(公告)日：2017-10-05
申请号：US15471327
申请日：2017-03-28
Applicant: NGK INSULATORS, LTD.
Inventor： Takafumi KIMATA , Kenichi HIDAKA , Yoshio KIKUCHI , Masaki ISHIKAWA , Kisuke YAMAMOTO , Kenji MORIMOTO
Abstract: A ceramic formed body extrusion method for forming a ceramic formed body having a wall-shaped or plate-shaped formed portion by using an extrusion die provided with a slit for extrusion of a ceramic formed body from a raw material for forming, the slit including a slit former stage unit located on an upstream side in an extrusion direction in the extrusion and a slit latter stage unit located on a downstream side in the extrusion direction, the slit latter stage unit having a width of three to 27 times a width of the slit former stage unit, and by extruding a raw material containing a first particle having an aspect ratio of two or more and less than 300 such that the raw material passes though the slit former stage unit of the extrusion die and then passes through the slit latter stage unit.
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