公开(公告)号：US20240011152A1

公开(公告)日：2024-01-11

申请号：US18348417

申请日：2023-07-07

申请人： TDK CORPORATION ,  NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY

发明人： Kumiko YAMAZAKI ,  Shuto KANO ,  Yuji MASUBUCHI ,  Shinichi KIKKAWA

IPC分类号： C23C16/30 ,  B01J35/00 ,  C23C16/515

CPC分类号： C23C16/308 ,  B01J35/004 ,  C23C16/515

摘要： A dielectric composition comprises a crystal of an oxynitride. A peak attributed to absence of a center of symmetry of the crystal of the oxynitride is detected by Raman spectroscopy of the dielectric composition within a Raman shift range of 500 cm−1 or less.

公开(公告)号：US20190202744A1

公开(公告)日：2019-07-04

申请号：US16074406

申请日：2017-02-01

申请人： TDK CORPORATION ,  NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY

发明人： Kumiko YAMAZAKI ,  Yuki NAGAMINE ,  Takeshi SHIBAHARA ,  Shinichi KIKKAWA ,  Yuji MASUBUCHI

IPC分类号： C04B35/58 ,  H01B3/12

摘要： To provide a dielectric porcelain composition and an electronic component that demonstrate ferroelectricity. A dielectric porcelain composition that is characterized by having a perovskite-type oxynitride as a principal component and by including a polycrystalline body that demonstrates ferroelectricity.

公开(公告)号：US20220194861A1

公开(公告)日：2022-06-23

申请号：US17690528

申请日：2022-03-09

申请人： National University Corporation Hokkaido University ,  Murata Manufacturing Co., Ltd.

发明人： Yuji MASUBUCHI ,  Akira HOSONO ,  Shinichi KIKKAWA ,  Masashi INOGUCHI

IPC分类号： C04B35/58 ,  C04B35/645 ,  C04B35/63 ,  B01J27/24 ,  B01J35/00 ,  B01J37/08 ,  G01N33/00 ,  H01G4/12

摘要： A sintered body containing polycrystalline grains of a metal oxynitride containing at least two metal elements, wherein Ba and at least one metal element of a crystal phase of the sintered body are contained in a triple point that is not a void between the polycrystalline grains. A method for producing the sintered body includes sintering a mixture of at least a metal oxynitride as a main component and a sintering aid containing cyanamide in an atmosphere containing nitrogen or a rare gas or in a reduced-pressure atmosphere of 10 Pa or less while applying a mechanical pressure with a retention time at a maximum heating temperature during the sintering set to 1 minute to 10 minutes.