Murata Manufacturing Co., Ltd.

Katsuyuki Takahashi

Yuya Ishida

Keijiro Kojima

Hiroyuki Sugie

Masashi Miyamoto

Noboru Shiokawa

Yasuhiro Itani

Kenichiro Maki

Seiji Karimori

A coil component includes a drum-shaped core including a core part having a circumferential surface including a first side surface and a second side surface parallel to each other; and a coil including two wires wound around the core part in the same direction. The coil has a first twisted wire part having the two wires twisted together on the first side surface, and a second twisted wire part having the two wires twisted together on the second side surface. The first twisted wire part and the second twisted wire part are identical in shape.

Coil component and method of manufacturing coil component

A wire-wound coil component is an electronic component including a core main body, such as a molded body, containing a magnetic powder resin in which a resin serves as a binder, and an oxide film covering at least a portion of the surface, such as the lower surface, of the core main body. The electronic component further includes an external electrode including a base layer formed on the surface of the oxide film. The base layer is a metal layer having high affinity for oxygen.

Electronic component

A wire coil component includes a shaped article, a wire wound around the shaped article, and terminal electrodes to which the ends of the wire are connected. The shaped article is formed from a magnetic resin containing a binder resin and a magnetic metal powder and has a thermal expansion coefficient of about 12 ppm/K or more and about 16 ppm/K or less (i.e., from about 12 ppm/K to about 16 ppm/K) from −55° C. to 150° C.

Wire coil component and method for producing wire coil component

A coil component includes a winding core that includes a winding core portion, a first flange portion, and a second flange portion. The coil component further includes a plate core that has a main surface facing the winding core portion, the first flange portion, and the second flange portion, that extends between the first flange portion and the second flange portion, and that is secured to the winding core by using adhesive. Each of the first flange portion and the second flange portion has an upper surface that faces the main surface of the plate core. Recessed portions are formed on the corresponding upper surfaces. Protrusions may be formed in corresponding regions in which the recessed portions are formed.

Coil component

A coil component includes a winding core, and a first wire and a second wire that are spirally wound around the winding core, that have substantially the same number of turns, that are not electrically connected to each other, and that have a twisted portion at which the first wire and the second wire are twisted together. In the coil component, the first wire and the second wire are wound around the winding core such that layers are formed. The twist pitch of the twisted portion at a turn in a first layer differs from the twist pitch of the twisted portion at a turn adjacent thereto in a second layer.

Coil component and method of manufacturing the same

A wire-wound electronic component includes a core having a winding base extending in an axial direction, a flange provided at an end of the winding base in the axial direction, and a wire wound around the winding base. An external electrode is provided on a plurality of side surfaces of the flange and is connected to an end of the wire, where the side surfaces are orthogonal to the axial direction. A connecting surface on which the end of the wire contacts with the external electrode is one of the side surfaces that is different from one of the side surfaces that functions as a mounting surface, and the external electrode extends from the mounting surface to the end of the wire in such a manner to turn in a direction same as a winding direction of the wire.

Growing community of inventors

Nagaokakyo, Japan

Katsuyuki Takahashi