公开(公告)号：US20220084865A1

公开(公告)日：2022-03-17

申请号：US17447102

申请日：2021-09-08

Applicant: NGK INSULATORS, LTD.

Inventor： Keita MIYANISHI ,  Kyohei ATSUJI ,  Asumi NAGAI ,  Hirofumi YAMAGUCHI ,  Soichiro AOYAGI

IPC: H01L21/683 ,  B32B37/06 ,  B32B9/00 ,  C04B22/04 ,  C04B22/06

Abstract: A composite sintered body includes a base material that contains Al2O3 as a main component, and an electrode arranged inside or on a surface of the base material. The electrode contains Ru, ZrO2, and Al2O3.

公开(公告)号：US20200165168A1

公开(公告)日：2020-05-28

申请号：US16776874

申请日：2020-01-30

Applicant: NGK INSULATORS, LTD.

Inventor： Kyohei ATSUJI ,  Noboru NISHIMURA ,  Yuji KATSUDA

IPC: C04B35/65 ,  C04B35/111 ,  H05K3/46 ,  H01B3/12 ,  H01L23/15

Abstract: A sintered compact includes an alumina phase as a primary phase, and further includes an amorphous phase containing Si and Mn and a cordierite phase. The sintered compact has a porosity of higher than or equal to 1.1% and less than or equal to 5.0%. Preferably, I1/(I1+I2) is greater than or equal to 0.20 and less than or equal to 0.45, where I1 is the strength of the main peak of cordierite obtained by an XRD method, and I2 is the strength of the main peak of alumina.

公开(公告)号：US20240428900A1

公开(公告)日：2024-12-26

申请号：US18823832

申请日：2024-09-04

Applicant: NGK INSULATORS, LTD.

Inventor： Takafumi KIMATA ,  Takahiro TOMITA ,  Kyohei ATSUJI ,  Kenji MORIMOTO ,  Shingo SOKAWA ,  Taisuke KATO ,  Takafumi NISHIWAKI ,  Atsunori INAGAKI

IPC: G16C60/00 ,  G16C20/70

Abstract: A system performs either inference using a first model or inference using a second model and a third model according to accuracy of at least one model of the first to third models and, upon the inference, generates or updates recipe properties data that is data indicating an association between a manufacturing method recipe for a material and a material property/properties. The first model is a model to which a manufacturing method recipe dataset indicating a manufacturing method recipe is input and from which a material properties dataset indicating a material property/properties is output. The second model is a model to which a material characteristics dataset indicating a material characteristic(s) is input and from which a material properties dataset is output. The third model is a model to which a manufacturing method recipe dataset is input and from which a material characteristics dataset is output.

公开(公告)号：US20220081365A1

公开(公告)日：2022-03-17

申请号：US17445504

申请日：2021-08-20

Applicant: NGK INSULATORS, LTD.

Inventor： Kyohei ATSUJI ,  Keita MIYANISHI ,  Asumi NAGAI ,  Hirofumi YAMAGUCHI

IPC: C04B35/119 ,  C04B35/645 ,  C04B35/626 ,  H01L21/683

Abstract: A composite sintered body includes a base material that includes ceramic as a main component, and an electrode arranged inside the base material or on a surface of the base material. The electrode contains W and ZrO2.

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.

公开(公告)号：US20220306539A1

公开(公告)日：2022-09-29

申请号：US17649950

申请日：2022-02-04

Applicant: NGK INSULATORS, LTD.

Inventor： Kyohei ATSUJI ,  Shinji SUZUKI ,  Shinpei OSHIMA ,  Takahiro TOMITA

IPC: C04B35/185 ,  B01J35/04 ,  B01J21/06 ,  B01J35/00 ,  B01J35/10 ,  C04B35/195 ,  C04B38/00

Abstract: A composite sintered body contains a silicon phase which is a main phase, a cordierite phase, and an amorphous phase containing Si. Further, the volume resistivity thereof at a room temperature is not lower than 0.1Ω·cm and not higher than 2.5Ω·cm.

公开(公告)号：US20210134639A1

公开(公告)日：2021-05-06

申请号：US17070149

申请日：2020-10-14

Applicant: NGK INSULATORS, LTD.

Inventor： Kyohei ATSUJI

IPC: H01L21/683 ,  H01B1/02

Abstract: A composite sintered body includes a base material (i.e., a main body) using ceramics as a main material and an electrode disposed inside the main body or on a surface thereof. The electrode contains WC and TiN. It is thereby possible to reduce the difference in thermal expansion coefficient between the electrode and the main body while suppressing an increase in the resistivity of the electrode. As a result, it is possible to suppress any damage such as a crack, a breakage, or the like of the main body, which is caused by the difference in the thermal expansion coefficient.

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 %.

公开(公告)号：US20220305470A1

公开(公告)日：2022-09-29

申请号：US17649958

申请日：2022-02-04

Applicant: NGK INSULATORS, LTD.

Inventor： Shinji SUZUKI ,  Kyohei ATSUJI ,  Takahiro TOMITA

IPC: B01J27/224 ,  B01D53/94 ,  B01J35/04 ,  B01J37/00 ,  B01J37/08 ,  B01J37/12 ,  B01J35/02 ,  B01J23/755 ,  B01J21/08 ,  B01J37/02 ,  F01N3/20 ,  F01N3/28

Abstract: A silicon carbide porous body contains β-SiC particles, Si particles, and metal silicide particles. The maximum particle diameter of the β-SIC particles is not smaller than 15 μm. The content of the Si particles is not lower than 10 mass %. The maximum particle diameter of the Si particles is not larger than 40 μm. Further, an oxide coating film having a thickness not smaller than 0.01 μm and not larger than 5 μm is provided on surfaces of the Si particles.

公开(公告)号：US20170251524A1

公开(公告)日：2017-08-31

申请号：US15425098

申请日：2017-02-06

Applicant: NGK INSULATORS, LTD.

Inventor： Kyohei ATSUJI ,  Noboru NISHIMURA ,  Yuji KATSUDA

IPC: H05B3/28 ,  H05B3/12 ,  C04B37/02 ,  H05B1/02

CPC classification number: H05B3/283 ,  C04B35/581 ,  C04B35/645 ,  C04B37/001 ,  C04B37/021 ,  C04B2235/3225 ,  C04B2235/5445 ,  C04B2235/6562 ,  C04B2235/6586 ,  C04B2235/72 ,  C04B2235/723 ,  C04B2237/366 ,  C04B2237/408 ,  C04B2237/68 ,  C04B2237/84 ,  H01L21/67103 ,  H05B1/0233 ,  H05B3/12 ,  H05B3/265 ,  H05B2203/013 ,  H05B2203/017

Abstract: A ceramic structure 10 includes a heater electrode 14 within a disk-shaped AlN ceramic substrate 12. The heater electrode 14 contains a metal filler in the main component WC. The metal filler (such as Ru or RuAl) has a lower resistivity and a higher thermal expansion coefficient than AlN. An absolute value of a difference |ΔCTE| between a thermal expansion coefficient of the AlN ceramic substrate 12 and a thermal expansion coefficient of the heater electrode 14 at a temperature in the range of 40° C. to 1000° C. is 0.35 ppm/° C. or less.