Samsung Electro-mechanics Co., Ltd.

Wits Co., Ltd.

Jung Young Cho

Sung Nam Cho

Doo Ho Park

Chang Hak Choi

Seung Hee Oh

Seung Min Lee

Jong Ho Chung

Jung Wook Seo

Tae Jun Choi

Jae Hyuk Jang

San Kyeong

Tai Yon Cho

Sung Yeol Park

Byeong Cheol Moon

Woo Jin Lee

Hee Seung Kim

Jeong Ki Ryoo

Jae Sun Won

Hyun Jung Lee

Young Seung Roh

Chang Ryul Jung

Soon Kwang Kwon

Il Jin Park

Sang Kyun Kwon

Won Sik Chong

Kang Ryong Choi

Yeong Hwan Song

Jong Ok Jeon

An Fe-based nanocrystalline alloy is represented by a Compositional Formula, FeBSiMA, wherein M is one or more elements selected from the group consisting of Nb, V, W, Ta, Zr, Hf, Ti, and Mo; A is one or more elements selected from the group consisting of Cu and Au, x, y, z, α, and β (based on atom %) satisfy the following conditions: 75%≤x≤81%, 7%≤y≤13%, and 4%≤z≤12%, and a peak in a differential scanning calorimetry (DSC) graph has a bimodal shape.

Fe-based nanocrystalline alloy and electronic component using the same

A coil electronic component includes a magnetic body in which internal coil parts are embedded, and a metal shielding sheet disposed on at least one of an upper portion and a lower portion of the magnetic body in a thickness direction, in which permeability of the metal shielding sheet is 100 times or higher than permeability of magnetic metal powder contained in the magnetic body.

Coil electronic component

A coil component includes: a body having one surface and the other surface opposing each other in one direction; a coil portion including a coil pattern having at least one turn around the one direction, and embedded in the body; an external electrode disposed on the one surface of the body and connected to the coil portion; a shielding layer disposed on the other surface of the body; and an insulating layer disposed between the body and the shielding layer.

Coil component

A wireless communications antenna includes: a magnetic body including one or more slits formed therein; and a coil part having solenoid form and disposed around the magnetic body, wherein the one or more slits are configured such that the magnetic body is not disconnected and a magnetic path of the magnetic body is continuous.

Wireless communications antenna

A magnetic field shielding structure includes a magnetic layer and a resonance reactive shielding circuit including a capacitor and a conductor connected to the capacitor and having a loop form. At least a portion of the magnetic layer overlaps an area surrounded by the conductor in a thickness direction of the magnetic layer.

Magnetic field shielding structure and mobile device including the magnetic field structure

A magnetic sheet includes one or more magnetic layers formed of a metal ribbon, the metal ribbon includes fragments with metal oxide coating layers formed in spaces between the fragments.

Magnetic sheet and electronic device

A magnetic sheet includes a first region and a second region disposed adjacent to each other on a same surface, wherein the first region includes first crack lines formed in a first direction, and the second region includes second crack lines formed in a second direction.

Magnetic sheet and wireless power charging apparatus including the same

A magnetic sheet for a communications module includes a magnetic material. The magnetic sheet includes crushed cracks in a first region and a second region disposed adjacent to the first region. Degrees of crushed cracks are different in the first region and the second region.

Magnetic sheet for communications module

A wireless communication antenna includes: a magnetic body including a plurality of bar-shaped unit ribbons arranged in columns, wherein the unit ribbons have shape anisotropy and a radiation direction on a side of the wireless communication antenna; and a solenoid coil including conductive patterns disposed around the magnetic body.

Wireless communication antenna including magnetic body

A wireless power charging system includes a reception coil unit including an insulating layer, a first coil including a first body portion disposed as a spiral on one surface of the insulating layer and a first lead portion extending from one end of the first body portion and led out of the insulating layer, and a second coil including a second body portion formed on the other surface of the insulating layer and electrically connected to the other end of the first body portion through a via and a second lead portion extending from the second body portion and led out of the insulating layer. The second coil has a width larger than that of the first coil and has a thickness smaller than that of the first coil.

Wireless power charging system

A sheet for shielding against electromagnetic waves includes a first magnetic material having a plurality of through holes formed in a thickness direction, and a second magnetic material filling the plurality of through holes and blocking a frequency band different from that of electromagnetic waves blocked by the first magnetic material.

Sheet for shielding against electromagnetic waves and wireless power charging device

A magnetic sheet for a wireless power charging system includes an electrode layer, first and second magnetic layers disposed on the electrode layer, and first and second adhesive layers disposed on the electrode layer. The first adhesive layer is disposed between the electrode layer and the first magnetic layer, and the second adhesive layer is disposed between the first and second magnetic layers. In one example, the first and second adhesive layers each include a plurality of core loss decreasing members, formed of at least one of an amorphous material, a ferrite material, and a synthetic material of amorphous and ferrite materials, dispersed therein. In another example, the first and second adhesive layers each include a plurality of magnetic saturation (Ms) reinforcing members, formed of at least one of a hetero-amorphous material, a nanocrystalline-amorphous material, and a synthetic material of hetero-amorphous and nanocrystalline-amorphous materials, dispersed therein.

Magnetic sheet for wireless power charging system

A sheet for shielding against electromagnetic waves and a wireless power charging device are provided. The sheet for shielding against electromagnetic waves includes a plurality of magnetic layers and an adhesive layer interposed between the plurality of magnetic layers and forming chemical bonds with an adjacent magnetic layer.

A device for transmitting data includes a transmitting coil configured to receive and transmit the data signal and to generate a magnetic field, and a magnetic material provided on one surface of the transmitting coil. A ratio of a residual magnetic flux density and a saturation magnetic flux density of the magnetic material is greater in a direction that the material is magnetized than in a direction the material is not magnetized.

Magnetic material and device for transmitting data using the same

A sheet for shielding electromagnetic waves includes a magnetic sheet formed of a metal ribbon. The magnetic sheet includes fractures disposed in a plurality of cracked portions comprising a plurality of metal ribbon fragments.

Growing community of inventors

Suwon-si, South Korea

Jung Young Cho