公开(公告)号：US20200234877A1

公开(公告)日：2020-07-23

申请号：US16843228

申请日：2020-04-08

Applicant: TDK CORPORATION

Inventor： Yuya OSHIMA ,  Makoto YOSHINO ,  Yoji TOZAWA ,  Junichi OTSUKA ,  Kazuo IWAI ,  Yohei TADAKI ,  Shinichi KONDO ,  Kazuhiro EBINA ,  Mamoru KAWAUCHI

IPC: H01F41/04 ,  H01F27/28 ,  H01F17/00

Abstract: A method of manufacturing a laminated coil component is a method of manufacturing a laminated coil component provided with a laminate obtained by laminating a coil conductor forming a spiral coil and an insulator layer. The method of manufacturing a laminated coil component includes a step of providing a conductor pattern configured to become a coil conductor on a green sheet configured to become an insulator layer, and a step of laminating a plurality of green sheets provided with the conductor pattern. The conductor pattern includes a pair of first side surfaces opposed to each other in an orthogonal direction orthogonal to a laminating direction of the green sheet. At the step of laminating a plurality of green sheets, a depression is formed on at least one of the pair of first side surfaces.

公开(公告)号：US20190198210A1

公开(公告)日：2019-06-27

申请号：US16199047

申请日：2018-11-23

Applicant: TDK CORPORATION

Inventor： Takashi SUZUKI ,  Hidekazu SATO ,  Yusuke NAGAI ,  Kouichi KAKUDA ,  Kunihiko KAWASAKI ,  Shinichi KONDO ,  Yuya ISHIMA ,  Shinichi SATO ,  Masaki TAKAHASHI ,  Takashi ENDO

IPC: H01F1/147 ,  H01F27/28 ,  H01F1/33

CPC classification number: H01F1/14766 ,  H01F1/33 ,  H01F27/2804 ,  H01F2027/2809

Abstract: The present invention provides a multilayer coil electronic component having improved inductance L, Q, and strength. The multilayer coil electronic component has an element in which a coil conductor and a magnetic element body are stacked. The magnetic element body includes soft magnetic metal particles and a resin. The resin fills a space between the soft magnetic metal particles. Each of soft magnetic metal particles has a soft magnetic metal particle core and an oxide film covering the soft magnetic metal particle core. A layer of the oxide film contacting the soft magnetic metal particle core is made of an oxide including Si.

公开(公告)号：US20180230040A1

公开(公告)日：2018-08-16

申请号：US15887281

申请日：2018-02-02

Applicant: TDK CORPORATION

Inventor： Shusaku UMEMOTO ,  Takashi SUZUKI ,  Hidekazu SATO ,  Masaki TAKAHASHI ,  Shinichi KONDO

IPC: C03C14/00 ,  H01F27/32 ,  H01F27/29

Abstract: Provided is a glass ceramics sintered body including a glass phase and a ceramics phase dispersed in the glass phase, in which the ceramics phase includes alumina grains and zirconia grains, the glass phase includes an MO-Al2O3—SiO2—B2O3 based glass, in which “M” is an alkaline earth metal, and an area ratio of the alumina grains is 0.05 to 12% and the area ratio of the zirconia grains is 0.05 to 6% on the cross section of the sintered body. According to the invention, a glass ceramics sintered body, capable of a low temperature sintering having a low dielectric constant and a sufficient strength, and a coil electronic component using thereof can be provided.

公开(公告)号：US20170025226A1

公开(公告)日：2017-01-26

申请号：US15215237

申请日：2016-07-20

Applicant: TDK CORPORATION

Inventor： Kouichi KAKUDA ,  Takashi SUZUKI ,  Masaki TAKAHASHI ,  Yukio TAKAHASHI ,  Shinichi KONDO ,  Asuka MURAI ,  Akihiko OIDE ,  Naoki UCHIDA ,  Hidekazu SATO

IPC: H01G4/40 ,  C04B37/00 ,  C04B35/462 ,  C04B35/453 ,  H01F1/03 ,  C04B35/47

CPC classification number: H01G4/40 ,  B32B18/00 ,  C04B35/265 ,  C04B35/453 ,  C04B35/462 ,  C04B35/47 ,  C04B2235/3232 ,  C04B2235/3236 ,  C04B2235/3262 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/3409 ,  C04B2235/365 ,  C04B2235/6025 ,  C04B2237/34 ,  C04B2237/346 ,  H01F1/0306 ,  H01F1/0315 ,  H01F1/344 ,  H01F17/0013 ,  H01F27/255 ,  H01F2017/0026

Abstract: Composite electronic including coil, capacitor and intermediate parts, wherein coil part includes coil-conductor and magnetic-layer, capacitor part includes internal electrodes and dielectric-layer, which contains SrO—TiO2 or ZnO—TiO2 based oxide, intermediate part between coil and capacitor parts, intermediate part includes intermediate material layer, which contains ZnO, TiO2 and boron, ZnO contained in intermediate material layer 50-85 parts by mole and TiO2 contained the intermediate material layer 15-50 parts by mole when total content of ZnO and TiO2 in intermediate material layer is 100 parts by mole, content boron in intermediate material layer is 0.1-5.0 parts by weight of B2O3 when total of ZnO and TiO2 in intermediate material layer set to 100 parts by weight, part of ZnO and TiO2 intermediate material layer constitute ZnO—TiO2 compound, which in intermediate material layer is 50 wt % or more when total weight of ZnO and TiO2 in intermediate material layer is set to 100 wt %.

Abstract translation: 包括线圈，电容器和中间部件的复合电子器件，其中线圈部分包括线圈导体和磁层，电容器部分包括内部电极和介电层，其包含SrO-TiO2或ZnO-TiO2基氧化物，线圈和电容器之间的中间部分 中间部分包括中间材料层，其含有ZnO，TiO 2和硼，中间材料层中所含的ZnO为50-85份摩尔，当TiO 2和ZnO的总含量为 中间材料层为100份摩尔，中间材料层中的硼含量为0.1-5.0重量份的B2O3，当中间材料层中的ZnO和TiO 2的总量设定为100重量份时，部分ZnO和TiO 2中间材料层构成 ZnO-TiO2化合物，当中间材料层中的ZnO和TiO 2的总重量设定为10时，其在中间材料层中的重量比为50重量％ 0重量％。