公开(公告)号：US11164692B2

公开(公告)日：2021-11-02

申请号：US16027865

申请日：2018-07-05

Applicant: TDK CORPORATION

Inventor： Yoshihiro Kawasaki ,  Munehito Nishimura ,  Setu Tsuchida

IPC: H01F17/04 ,  H01F27/24 ,  H01F41/064 ,  H01F27/29 ,  H01F27/28 ,  H01F41/10

Abstract: A coil device includes: a core including a winding core part and a flange part at an axial end part of the winding core part, a coil part including a first wire and a second wire wound around the winding core part, a first terminal electrode, formed on a flange part mounting surface and a lead-out part of the first wire is connected, and a second terminal electrode, formed on the mounting surface of the flange part spaced apart from the first terminal electrode and a lead-out part of the second wire is connected, in which the flange part includes a concave part, recessed from the upper surface of the flange part and from an outer end surface of the flange part in order to have bottoms. The coil device is easy to connect a wire and has excellent bonding strength even when the connecting part becomes the mounting surface.

公开(公告)号：US11935679B2

公开(公告)日：2024-03-19

申请号：US17487057

申请日：2021-09-28

Applicant: TDK CORPORATION

Inventor： Yoshihiro Kawasaki ,  Munehito Nishimura ,  Setu Tsuchida

IPC: H01F27/24 ,  H01F17/04 ,  H01F27/28 ,  H01F27/29 ,  H01F41/064 ,  H01F41/10

CPC classification number: H01F27/24 ,  H01F17/04 ,  H01F27/2823 ,  H01F27/2828 ,  H01F27/29 ,  H01F27/292 ,  H01F41/064 ,  H01F41/10 ,  H01F17/045

Abstract: A coil device includes: a core including a winding core part and a flange part at an axial end part of the winding core part, a coil part including a first wire and a second wire wound around the winding core part, a first terminal electrode, formed on a flange part mounting surface and a lead-out part of the first wire is connected, and a second terminal electrode, formed on the mounting surface of the flange part spaced apart from the first terminal electrode and a lead-out part of the second wire is connected, in which the flange part includes a concave part, recessed from the upper surface of the flange part and from an outer end surface of the flange part in order to have bottoms. The coil device is easy to connect a wire and has excellent bonding strength even when the connecting part becomes the mounting surface.

公开(公告)号：USD1056843S1

公开(公告)日：2025-01-07

申请号：US29942221

申请日：2024-05-14

Applicant: TDK CORPORATION

Designer： Ryoei Shinohara ,  Yoshihiro Koike ,  Munehito Nishimura

公开(公告)号：US11515075B2

公开(公告)日：2022-11-29

申请号：US16198300

申请日：2018-11-21

Applicant: TDK CORPORATION

Inventor： Yoshihiro Kawasaki ,  Munehito Nishimura ,  Aoi Tokiwa

IPC: H01F27/28 ,  H01F41/069 ,  H01F17/04 ,  H01F27/24 ,  H01F41/076 ,  H01F27/29

Abstract: A coil device includes a core and a coil portion. The core includes a winding core part and a flange part disposed at one end of the winding core part in an axial direction thereof. The coil portion is formed by winding a first wire and a second wire around the winding core part. The flange part includes first and second grooves passed by a leading part of the first wire or the second wire. The first groove extends toward an outside of the flange part. The second groove extends toward the outside of the flange part at an angle differing from that of the first groove.

公开(公告)号：USD1033357S1

公开(公告)日：2024-07-02

申请号：US29773424

申请日：2021-03-09

Applicant: TDK CORPORATION

Designer： Ryoei Shinohara ,  Yoshihiro Koike ,  Munehito Nishimura

Abstract: FIG. 1 is a front elevational view of a first embodiment of a coil component, showing the new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a left-side elevational view thereof;
FIG. 4 is a right-side elevational view thereof;
FIG. 5 is a top plan view thereof; and
FIG. 6 is a bottom plan view thereof.
FIG. 7 is a front elevational view of a second embodiment of a coil component, showing the new design;
FIG. 8 is a rear view thereof;
FIG. 9 is a left-side view thereof;
FIG. 10 is a right-side thereof;
FIG. 11 is a top plan view thereof;
FIG. 12 is a bottom plan view thereof; and,
FIG. 13 is a top plan view thereof showing state where a cover is removed.
The broken lines depict parts of the coil component that form no part of the claimed design.

公开(公告)号：US11948717B2

公开(公告)日：2024-04-02

申请号：US17002094

申请日：2020-08-25

Applicant: TDK CORPORATION

Inventor： Ryoei Shinohara ,  Takashi Arasawa ,  Yoshihiro Kawasaki ,  Munehito Nishimura

IPC: H01F17/04 ,  H01F27/24 ,  H01F27/26 ,  H01F27/29 ,  H01F41/02 ,  H01F41/04 ,  H01F1/34

CPC classification number: H01F27/24 ,  H01F17/045 ,  H01F27/263 ,  H01F27/29 ,  H01F27/292 ,  H01F41/0206 ,  H01F41/04 ,  H01F1/344

Abstract: A coil device includes: a drum core having first and second flange portions and a winding core portion therebetween; a coil wound around the core portion; a plate core connected to first and second flange portions first and second flange surfaces at a first direction side; a first electrode terminal on the first flange portion, one coil end portion electrically connected on the first electrode terminal; and a second electrode terminal on the second flange portion, the other coil end portion electrically connected on the second electrode terminal. The plate core has a first and second projecting portions respectively protruding toward the first and second flange surfaces and having first and second flat surfaces facing the first and second flange surfaces. The drum core and the plate core are connected by abutting and bonding the first and second flange surfaces against the first and second flat surfaces.

公开(公告)号：US11621118B2

公开(公告)日：2023-04-04

申请号：US16782148

申请日：2020-02-05

Applicant: TDK CORPORATION

Inventor： Munehito Nishimura ,  Yoshihiro Kawasaki ,  Masato Otsuka ,  Taishi Kitamura

IPC: H01F27/24 ,  H01F27/29 ,  H01F27/28

Abstract: A coil device includes a core including a winding core portion and a flange portion provided in an end portion of the winding core portion in an X-axis direction, a coil portion formed by a first wire and a second wire being wound around the winding core portion, and a first terminal electrode formed on one end side of the flange portion in a Y-axis direction, a first lead portion of the first wire being connected to the first terminal electrode, and a second terminal electrode formed on the other end side of the flange portion in the Y-axis direction, a second lead portion of the second wire being connected to the second terminal electrode. The width of the flange portion along X-axis-direction is different between one end and the other end of the flange portion in the Y-axis-direction.