公开(公告)号：US12237465B2

公开(公告)日：2025-02-25

申请号：US17447305

申请日：2021-09-10

Applicant: NAGOYA INSTITUTE OF TECHNOLOGY ,  NGK INSULATORS, LTD.

Inventor： Reona Miyazaki ,  Harunobu Onishi ,  Satoshi Ozaki ,  Toshihiro Yoshida ,  Yuji Katsuda ,  Yosuke Sato ,  En Yagi

IPC: H01M10/0562 ,  H01G11/56 ,  H01G11/84

Abstract: Provided is a solid electrolyte which is identified as 3LiOH·Li2SO4 by diffractometry. The solid electrolyte further contains boron.

公开(公告)号：US11855254B2

公开(公告)日：2023-12-26

申请号：US16923808

申请日：2020-07-08

Applicant: NAGOYA INSTITUTE OF TECHNOLOGY ,  NGK INSULATORS, LTD.

Inventor： Reona Miyazaki ,  Toshihiro Yoshida ,  Satoshi Ozaki ,  Yosuke Sato ,  Yuji Katsuda

IPC: H01M10/0562 ,  C01D15/02 ,  C01D15/06

CPC classification number: H01M10/0562 ,  C01D15/02 ,  C01D15/06 ,  C01P2006/10 ,  C01P2006/40 ,  H01M2300/0071

Abstract: Provided is a solid electrolyte which contains a composition expressed by 3LiOH·Li2SO4. The solid electrolyte has a lithium ion conductivity of 0.1×10−6 S/cm or more at 25° C. and an activation energy of 0.6 eV or more.

公开(公告)号：US11837699B2

公开(公告)日：2023-12-05

申请号：US16864550

申请日：2020-05-01

Applicant: NGK INSULATORS, LTD.

Inventor： Yukinobu Yura ,  Yukihisa Takeuchi ,  Yosuke Sato ,  Toshihiro Yoshida ,  Yuji Katsuda

IPC: H01M10/0585 ,  H01M10/0525 ,  H01M4/485 ,  H01M10/0562 ,  H01M50/431 ,  H01M50/434 ,  H01M50/489 ,  H01M4/02

CPC classification number: H01M10/0585 ,  H01M4/485 ,  H01M10/0525 ,  H01M10/0562 ,  H01M50/431 ,  H01M50/434 ,  H01M50/489 ,  H01M2004/021 ,  H01M2300/0068

Abstract: Provided is an all-solid lithium battery including: a low-angle oriented positive electrode plate that is a lithium complex oxide sintered plate having a porosity of 10 to 50%; a negative electrode plate containing Ti and capable of intercalating and deintercalating lithium ions at 0.4 V or higher (vs. Li/Li+); and a solid electrolyte having a melting point lower than the melting point or pyrolytic temperature of the oriented positive electrode plate or the negative electrode plate, wherein at least 30% of pores in the oriented positive electrode plate is filled with the solid electrolyte in an observation of a cross-section perpendicular to a main face of the oriented positive electrode plate.

公开(公告)号：US11837488B2

公开(公告)日：2023-12-05

申请号：US16934222

申请日：2020-07-21

Applicant: NGK INSULATORS, LTD.

Inventor： Asumi Nagai ,  Katsuhiro Inoue ,  Yuji Katsuda

IPC: H01T23/00 ,  H01L21/683 ,  B28B1/00 ,  C04B35/117 ,  C04B35/565

CPC classification number: H01L21/6833 ,  B28B1/001 ,  C04B35/117 ,  C04B35/565

Abstract: A method of manufacturing a composite sintered body includes a step (Step S11) of molding mixed powder in which Al2O3, SiC, and MgO are mixed, into a green body having a predetermined shape and a step (Step S12) of generating a composite sintered body by sintering the green body. Then, in Step S11, the ratio of SiC to the mixed powder is not lower than 4.0 weight percentage and not higher than 13.0 weight percentage. Further, the purity of Al2O3 in Step S11 is not lower than 99.9%. It is thereby possible to suppress the abnormal grain growth of Al2O3 and suitably manufacture a composite sintered body having high relative dielectric constant and withstand voltage, and low tan δ.

公开(公告)号：US11332410B2

公开(公告)日：2022-05-17

申请号：US16776874

申请日：2020-01-30

Applicant: NGK INSULATORS, LTD.

Inventor： Kyohei Atsuji ,  Noboru Nishimura ,  Yuji Katsuda

IPC: C04B35/626 ,  C04B35/109 ,  C04B35/65 ,  C04B35/111 ,  H01B3/12 ,  H01L23/15 ,  H05K3/46

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：US11152195B2

公开(公告)日：2021-10-19

申请号：US15386235

申请日：2016-12-21

Applicant: NGK INSULATORS, LTD.

Inventor： Yosuke Sato ,  Katsuhiro Inoue ,  Yuji Katsuda

IPC: C23C4/11 ,  H01J37/32 ,  C23C4/134 ,  C23C4/129

Abstract: A MgO-based ceramic film according to the present invention contains crystalline phases of MgO and MgAl2O4, and Al is dissolved in the MgO to form a solid-solution. The ceramic film exhibits a diffraction peak representing the (200) plane of MgO at an angle 2θ of more than 42.92° in CuKα XRD measurement. A shoulder preferably appears on the higher angle side of the peak representing the (200) plane of MgO. The mass ratio MgO/Al2O3 of MgO to Al2O3 converted from Mg and Al in terms of oxides is preferably higher than 2.33.

公开(公告)号：US09567467B2

公开(公告)日：2017-02-14

申请号：US14557801

申请日：2014-12-02

Applicant: NGK Insulators, Ltd.

Inventor： Yosuke Sato ,  Katsuhiro Inoue ,  Yuji Katsuda

IPC: C08K3/22 ,  C08K3/28 ,  C09D1/00 ,  C04B35/053 ,  C04B35/622 ,  C04B35/645 ,  C23C4/10

CPC classification number: C09D1/00 ,  C04B35/04 ,  C04B35/053 ,  C04B35/62222 ,  C04B35/645 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3222 ,  C04B2235/3865 ,  C04B2235/3869 ,  C04B2235/6567 ,  C04B2235/6586 ,  C04B2235/76 ,  C04B2235/80 ,  C04B2235/9669 ,  C09D5/084 ,  C23C4/10 ,  H01L21/02194

Abstract: A thermal spray coating according to the present invention contains mainly magnesium, aluminum, oxygen, and nitrogen and has, as a main phase, a crystal phase of a MgO—AlN solid solution in which aluminum nitride is dissolved with magnesium oxide. The thermal spray coating is obtained by thermal spray of powder of a ceramic material containing mainly magnesium, aluminum, oxygen, and nitrogen and having, as a main phase, a crystal phase of a MgO—AlN solid solution in which aluminum nitride is dissolved with magnesium oxide.

Abstract translation: 根据本发明的热喷涂层主要含有镁，铝，氧和氮，并且以氧化镁溶解有氮化铝的MgO-AlN固溶体的主相作为主相。 热喷涂是通过以主要包含镁，铝，氧和氮的陶瓷材料的粉末的热喷涂而获得的，并且以主要相为其中溶解有氮化铝的MgO-AlN固溶体的结晶相， 氧化镁。

公开(公告)号：US09073789B2

公开(公告)日：2015-07-07

申请号：US14023671

申请日：2013-09-11

Applicant: NGK Insulators, Ltd.

Inventor： Yunie Izumi ,  Yoshimasa Kobayashi ,  Yuji Katsuda

IPC: C04B35/18 ,  C04B35/16 ,  C04B35/195

CPC classification number: C04B35/18 ,  C04B35/16 ,  C04B35/195 ,  Y10T428/12597 ,  Y10T428/257

Abstract: A manufacturing method of a sintered ceramic body mixes barium silicate with aluminum oxide, a glass material, and an additive oxide to prepare a material mixture, molds the material mixture and fires the molded object. The barium silicate is monoclinic and has an average particle diameter in a range of 0.3 μm to 1 μm and a specific surface area in a range of 5 m2/g to 20 m2/g. The aluminum oxide has an average particle diameter in a range of 0.4 μm to 10 μm, a specific surface area in a range of 0.8 m2/g to 8 m2/g. A volume ratio of the aluminum oxide to the barium silicate is in a range of 10% by volume to 25% by volume.

Abstract translation: 烧结陶瓷体的制造方法将硅酸钡与氧化铝，玻璃材料和添加剂氧化物混合以制备材料混合物，模塑材料混合物并使其成型。 所述硅酸钡为单斜晶系，平均粒径为0.3μm〜1μm，比表面积为5m 2 / g〜20m 2 / g。 氧化铝的平均粒径为0.4μm〜10μm，比表面积为0.8m 2 / g〜8m 2 / g。 氧化铝与硅酸钡的体积比在10体积％〜25体积％的范围内。

公开(公告)号：US11845697B2

公开(公告)日：2023-12-19

申请号：US17022492

申请日：2020-09-16

Applicant: NGK INSULATORS, LTD.

Inventor： Kyohei Atsuji ,  Noboru Nishimura ,  Asumi Nagai ,  Yuji Katsuda

IPC: C04B35/117 ,  C04B35/64 ,  H01L21/683

CPC classification number: C04B35/117 ,  C04B35/64 ,  H01L21/6833 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3222 ,  C04B2235/3826 ,  C04B2235/656 ,  C04B2235/763 ,  C04B2235/77 ,  C04B2235/784 ,  C04B2235/786

Abstract: The composite sintered body includes Al2O3, and MgAl2O4. The content of Al2O3 in the composite sintered body is not less than 95.5% by weight. The average sintered grain size of Al2O3 in the composite sintered body is not less than 2 μm and not greater than 4 μm. The standard deviation of sintered grain size distribution of Al2O3 in the composite sintered body is not greater than 0.35. The bulk density of the composite sintered body is not less than 3.94 g/cm3 and not greater than 3.98 g/cm3. In the composite sintered body, the ratio of amount of crystal phase of MgAl2O4 to that of Al2O3 is not less than 0.003 and not greater than 0.01.

公开(公告)号：US11198648B2

公开(公告)日：2021-12-14

申请号：US15463251

申请日：2017-03-20

Applicant: NGK INSULATORS, LTD.

Inventor： Yoshinori Isoda ,  Yoshio Suzuki ,  Katsuhiro Inoue ,  Yuji Katsuda

IPC: C04B35/195 ,  C04B35/626 ,  C04B35/645 ,  C04B37/00 ,  H01L41/00

Abstract: A cordierite-based sintered body according to the present invention contains cordierite as a main component and silicon nitride or silicon carbide. The cordierite-based sintered body preferably has a thermal expansion coefficient less than 2.4 ppm/° C. at 40° C. to 400° C., an open porosity of 0.5% or less, and an average grain size of 1 μm or less.