公开(公告)号：US20240282497A1

公开(公告)日：2024-08-22

申请号：US18540986

申请日：2023-12-15

Applicant: TDK CORPORATION

Inventor： Takuya SATO ,  Kazuhiro TSUKAMOTO

IPC: H01F17/00

CPC classification number: H01F17/0013

Abstract: An inductor includes a first inductor portion, and a second inductor portion that is connected in parallel with the first inductor portion. Each of the first and second inductor portions includes a conductor structure wound about an axis extending in a direction orthogonal to a stacking direction of a stack. The conductor structure of the first inductor portion includes first to third structures. The first structure includes three columnar conductors. The second structure includes three columnar conductors.

公开(公告)号：US20240274342A1

公开(公告)日：2024-08-15

申请号：US18410062

申请日：2024-01-11

Applicant: TDK CORPORATION

Inventor： Takuya SATO

IPC: H01F17/00 ,  H01F27/28 ,  H01F27/29

CPC classification number: H01F17/0013 ,  H01F27/2804 ,  H01F27/292 ,  H01F2017/0026

Abstract: An electronic component includes a first main body and an inductor integrated with the first main body. The inductor includes a first columnar conductor, a second columnar conductor, a first conductor layer connected to a second end portion of the first columnar conductor, and a second conductor layer connected to a second end portion of the second columnar conductor. A longitudinal direction of the first conductor layer and a longitudinal direction of the second conductor layer intersect with each other.

公开(公告)号：US20230353116A1

公开(公告)日：2023-11-02

申请号：US18212403

申请日：2023-06-21

Applicant: TDK CORPORATION

Inventor： Takuya SATO

IPC: H03H7/01 ,  H01F27/28 ,  H01G4/30 ,  H01G4/40 ,  H01F27/40

CPC classification number: H03H7/0115 ,  H01F27/2804 ,  H01G4/30 ,  H01G4/40 ,  H01F27/40 ,  H01F2027/2809 ,  H03H2001/0085

Abstract: A low-pass filter includes first to third inductors and a capacitor. A first inductor-forming conductor layer constituting at least a part of each of the first and second inductors and a second inductor-forming conductor layer including first and second portions constituting first and second inductor portions of the third inductor are connected by a plurality of first through holes. The first portion and a capacitor-forming conductor layer constituting a part of the capacitor are connected by a plurality of second through holes. The second portion and the capacitor-forming conductor layer are connected by a plurality of third through holes.

公开(公告)号：US20230307171A1

公开(公告)日：2023-09-28

申请号：US18173539

申请日：2023-02-23

Applicant: TDK CORPORATION

Inventor： Takuya SATO

IPC: H01F27/28

CPC classification number: H01F27/2804 ,  H01F2027/2809

Abstract: An electronic component includes an element body, a first coil, and a second coil. The element body includes a plurality of insulator layers that are stacked in a first direction. The first coil is disposed inside the element body. The first coil forms a coil axis along a second direction orthogonal to the first direction. The second coil is disposed inside the element body. The second coil forms a coil axis along the first direction. The second coil is located in a region surrounded by the first coil when viewed in the second direction. The second coil overlaps the first coil when viewed in the first direction, and protrudes from the first coil to only one side.

公开(公告)号：US20230078928A1

公开(公告)日：2023-03-16

申请号：US17940157

申请日：2022-09-08

Applicant: TDK CORPORATION

Inventor： Takuya SATO

IPC: H03H7/01 ,  H03H1/00

Abstract: An electronic component includes a stack and first to third inductors. Area of a region obtained by perpendicularly projecting a first space including a first axis and surrounded by the first inductor onto an XZ plane is larger than area of a region obtained by perpendicularly projecting a second space including a second axis and surrounded by the second inductor onto a YZ plane. The third inductor is disposed such that a third axis does not intersect the first space but intersects the second space.

公开(公告)号：US20240204742A1

公开(公告)日：2024-06-20

申请号：US18538245

申请日：2023-12-13

Applicant: TDK CORPORATION

Inventor： Takuya SATO ,  Yuki MATSUMOTO

IPC: H03H7/01

CPC classification number: H03H7/0115 ,  H03H7/1775 ,  H03H2001/0085

Abstract: A filter device includes a plurality of resonators and a stack. The plurality of resonators include a first parallel resonator and a first serial resonator. The first parallel resonator includes a conductor structure wound around an axis extending in a direction orthogonal to a stacking direction. The first serial resonator includes a conductor layer wound around an axis extending in a direction parallel to the stacking direction. The conductor layer includes three portions each located between a corresponding one of three side surfaces and at least part of the conductor structure when seen in the stacking direction.

公开(公告)号：US20220294407A1

公开(公告)日：2022-09-15

申请号：US17685442

申请日：2022-03-03

Applicant: TDK CORPORATION

Inventor： Takuya SATO ,  Kazuhiro TSUKAMOTO

IPC: H03H7/01

Abstract: A filter device includes a filter including at least one inductor and at least one capacitor, and a stack of a plurality of dielectric layers and a plurality of conductor layers. The plurality of dielectric layers include at least one first dielectric layer formed of a first dielectric material and at least one second dielectric layer formed of a second dielectric material. The plurality of conductor layers include at least one first conductor layer in contact with the at least one first dielectric layer, and at least one second conductor layer in contact with the at least one second dielectric layer. The temperature coefficient of resonant frequency of the first dielectric material has a positive value. The temperature coefficient of resonant frequency of the second dielectric material has a negative value.

公开(公告)号：US20210257984A1

公开(公告)日：2021-08-19

申请号：US17176607

申请日：2021-02-16

Applicant: TDK CORPORATION

Inventor： Takuya SATO ,  Kazuhiro TSUKAMOTO

IPC: H03H7/01

Abstract: In a multilayer filter, a first LC parallel resonance unit, a second LC parallel resonance unit, and an LC circuit unit are configured in an element body, in which the LC circuit unit is connected between the first LC parallel resonance unit and the second LC parallel resonance unit in a path between a first terminal electrode and a second terminal electrode, a conductor pattern constituting an inductor of the LC circuit unit is not disposed between a conductor pattern constituting a first inductor of the first LC parallel resonance unit and a conductor pattern constituting a second inductor of the second LC parallel resonance unit in the element body, and the first inductor of the first LC parallel resonance unit and the second inductor of the second LC parallel resonance unit are magnetically coupled.

公开(公告)号：US20240275361A1

公开(公告)日：2024-08-15

申请号：US18429877

申请日：2024-02-01

Applicant: TDK CORPORATION

Inventor： Takuya SATO

IPC: H03H9/64 ,  H03H7/01 ,  H03H9/25

CPC classification number: H03H9/64 ,  H03H7/0138 ,  H03H9/25

Abstract: An electronic component includes a first main body and a second main body mounted on the first main body. The first main body includes a common terminal, a second signal terminal, and a circuit section including first to fourth inductors. The second main body includes first to third acoustic wave elements electrically connected to the circuit section. The first acoustic wave element is connected in parallel with the first inductor. The second acoustic wave element is connected in parallel with the second and third inductors. The third acoustic wave element is connected in parallel with the fourth inductor. The first to third acoustic wave elements, in a state of being electrically connected to the circuit section, are not electrically connected to the ground.

公开(公告)号：US20230081943A1

公开(公告)日：2023-03-16

申请号：US17941354

申请日：2022-09-09

Applicant: TDK CORPORATION

Inventor： Takuya SATO

IPC: H03H7/01 ,  H01F27/28 ,  H01F27/40 ,  H01G4/30

Abstract: An electronic component includes a stack and first to fourth inductors. The second inductor is disposed after the first inductor in a −Y direction. The third inductor and the fourth inductor are disposed after the first inductor and the second inductor, respectively, in a −X direction. Two or more through hole columns are connected in parallel to a part near each end of a conductor layer portion in each of the first inductor and the fourth inductor in a longitudinal direction. One through hole column is connected to a part near each end of a conductor layer portion in each of the second inductor and the third inductor in a longitudinal direction.