公开(公告)号：US11702368B2

公开(公告)日：2023-07-18

申请号：US17046691

申请日：2019-03-15

申请人： SHOEI CHEMICAL INC.

发明人： Takeshi Nomura ,  Yukari Sasaki

IPC分类号： C04B35/495 ,  H01G4/008 ,  H01G4/12 ,  H01G4/30

CPC分类号： C04B35/495 ,  H01G4/008 ,  H01G4/1254 ,  H01G4/30 ,  C04B2235/3232 ,  C04B2235/3236 ,  C04B2235/3239 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3284 ,  C04B2235/442

摘要： A dielectric ceramic composition including a first component and a second component. The first component comprises an oxide of Ca of 0.00 mol % to 35.85 mol % an oxide of Sr of 0.00 mol % to 47.12 mol %, an oxide of Ba of 0.00 mol % to 51.22 mol %, an oxide of Ti of 0.00 mol % to 17.36 mol %, an oxide of Zr of 0.00 mol % to 17.36 mol %, an oxide of Sn of 0.00 mol % to 2.60 mol %, an oxide of Nb of 0.00 mol % to 35.32 mol %, an oxide of Ta of 0.00 mol % to 35.32 mol %, and an oxide of V of 0.00 mol % to 2.65 mol %. The second component includes (by mass) at least (a) an oxide of Mn of 0.005% to 3.500% and (b) one or both of an oxide of Cu of 0.080% to 20.000% and an oxide of Ru of 0.300% to 45.000%.

公开(公告)号：US20190241476A1

公开(公告)日：2019-08-08

申请号：US16342515

申请日：2017-10-11

申请人： SHOEI CHEMICAL INC.

发明人： Takeshi Nomura ,  Atsushi Nemoto ,  Yukari Sasaki ,  Kazuhiko Takemoto ,  Naomi Kinoshita ,  Yumi Takahashi

IPC分类号： C04B35/47 ,  C04B35/495 ,  C04B35/468 ,  H01G4/12

CPC分类号： C04B35/47 ,  C04B35/468 ,  C04B35/495 ,  C04B35/499 ,  C04B2235/3206 ,  C04B2235/3225 ,  C04B2235/3239 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3262 ,  C04B2235/3293 ,  C04B2235/3418 ,  C04B2235/6562 ,  C04B2235/76 ,  C04B2235/96 ,  H01B3/12 ,  H01G4/12 ,  H01G4/1227 ,  H01G4/30

摘要： According to the present invention, a dielectric ceramic composition, which can be fired in a reducing atmosphere, has a high dielectric constant, has an electrostatic capacity exhibiting little change, when used as a dielectric layer of a ceramic electronic component such as a laminated ceramic capacitor even under a condition of 150 to 200° C., and has small dielectric losses at 25° C. and 200° C., can be provided.

公开(公告)号：US11524923B2

公开(公告)日：2022-12-13

申请号：US17046698

申请日：2019-03-15

申请人： SHOEI CHEMICAL INC.

发明人： Takeshi Nomura ,  Yukari Sasaki

IPC分类号： C04B35/057 ,  H01G4/12 ,  H01G4/30

摘要： Provided is a dielectric ceramic composition including a first component and a second component, wherein the first component comprises an oxide of Ca of 0.00 mol % to 35.85 mol % an oxide of Sr of 0.00 mol % to 47.12 mol %, an oxide of Ba of 0.00 mol % to 51.22 mol %, an oxide of Ti of 0.00 mol % to 17.36 mol %, an oxide of Zr of 0.00 mol % to 17.36 mol %, an oxide of Sn of 0.00 mol % to 2.60 mol %, an oxide of Nb of 0.00 mol % to 35.32 mol %, an oxide of Ta of 0.00 mol % to 35.32 mol %, and an oxide of V of 0.00 mol % to 2.65 mol %, and the second component includes at least (a) an oxide of Mn of 0.005% by mass to 3.500% by mass and (b) an oxide of Cu and/or an oxide of Ru.

公开(公告)号：US11066332B2

公开(公告)日：2021-07-20

申请号：US16342515

申请日：2017-10-11

申请人： SHOEI CHEMICAL INC.

发明人： Takeshi Nomura ,  Atsushi Nemoto ,  Yukari Sasaki ,  Kazuhiko Takemoto ,  Naomi Kinoshita ,  Yumi Takahashi

IPC分类号： C04B35/468 ,  C04B35/495 ,  H01G4/12 ,  C04B35/47 ,  H01G4/30 ,  H01B3/12 ,  C04B35/499

摘要： According to the present invention, a dielectric ceramic composition, which can be fired in a reducing atmosphere, has a high dielectric constant, has an electrostatic capacity exhibiting little change, when used as a dielectric layer of a ceramic electronic component such as a laminated ceramic capacitor even under a condition of 150 to 200° C., and has small dielectric losses at 25° C. and 200° C., can be provided.