公开(公告)号：EP3825292A1

公开(公告)日：2021-05-26

申请号：EP19838179.0

申请日：2019-07-16

申请人： Tokyo Institute of Technology ,  Kanagawa Institute of Industrial Science and Technology ,  NGK Spark Plug Co., Ltd.

发明人： NAKAJIMA, Akira ,  MATSUMOTO, Takumi ,  MATSUSHITA, Sachiko ,  ISOBE, Toshihiro ,  SUNADA, Kayano

IPC分类号： C04B35/50 ,  C04B35/495

摘要： A complex oxide ceramic according to an embodiment is a complex oxide ceramic including a rare earth element and at least one element selected from among molybdenum, tungsten, and vanadium. An example of the rare earth element is at least one species selected from among La, Ce, and Gd.

公开(公告)号：EP4169878A1

公开(公告)日：2023-04-26

申请号：EP21830284.2

申请日：2021-06-22

申请人： Tokyo Institute of Technology ,  NGK SPARK PLUG CO., LTD.

发明人： NAKAJIMA, Akira ,  MATSUMOTO, Takumi ,  SHOJI, Mao ,  KOZUKA, Hisashi

IPC分类号： C01G39/00 ,  C04B35/495 ,  C04B35/50

摘要： The lanthanum molybdenum composite oxide of the present invention has a primary crystal phase formed of La 2 Mo 2 O 9 and a secondary crystal phase formed of a lanthanum molybdenum composite oxide species other than La 2 Mo 2 O 9 .

公开(公告)号：EP4321494A1

公开(公告)日：2024-02-14

申请号：EP22784689.6

申请日：2022-04-06

申请人： Niterra Co., Ltd. ,  Tokyo Institute of Technology

发明人： SHOJI, Mao ,  KOZUKA, Hisashi ,  OKIMURA, Yasuyuki ,  NAKAJIMA, Akira

IPC分类号： C04B35/50 ,  C01G39/00 ,  C04B35/495

摘要： A ceramic material of the present invention contains a La-Mo-based composite oxide and at least one first element selected from the group consisting of Si and Al, in which the amount of first element contained is more than 0% by mass and 0.5% or less by mass.