公开(公告)号：US20230162910A1

公开(公告)日：2023-05-25

申请号：US17977038

申请日：2022-10-31

Applicant: TDK CORPORATION

Inventor： Hidenobu UMEDA ,  Masaki TAKAHASHI ,  Kaori SASAKI ,  Nami ENOMOTO

IPC: H01F27/32 ,  H01F41/12 ,  H01F41/04 ,  H01F27/28

CPC classification number: H01F27/324 ,  H01F41/125 ,  H01F41/043 ,  H01F27/2804 ,  H01F2027/2809

Abstract: An electronic component includes a glass ceramic layer and a conductor layer. The glass ceramic layer includes feldspar crystal phases, non-crystalline glass phases, and Al2O3 phases. The area ratio of the feldspar crystal phases in the vicinity of the conductor layer is larger than the area ratio of the feldspar crystal phases away from the conductor layer.

公开(公告)号：US20230159380A1

公开(公告)日：2023-05-25

申请号：US17977055

申请日：2022-10-31

Applicant: TDK CORPORATION

Inventor： Hidenobu UMEDA ,  Masaki TAKAHASHI ,  Kaori SASAKI ,  Nami ENOMOTO

IPC: C03C14/00 ,  C03C10/00

CPC classification number: C03C14/004 ,  C03C10/0036 ,  C03C2214/04 ,  C03C2214/20 ,  C03C2204/00

Abstract: A glass ceramic includes feldspar crystal phases, non-crystalline glass phases, Al2O3 phases, and SiO2 phases. At least one pair of the Al2O3 phases is bonded via at least one of the feldspar crystal phases.

公开(公告)号：US20220059264A1

公开(公告)日：2022-02-24

申请号：US17408155

申请日：2021-08-20

Applicant: TDK CORPORATION

Inventor： Ryuichi WADA ,  Takashi SUZUKI ,  Yusuke NAGAI ,  Kaori SASAKI ,  Tatsuro SUZUKI

IPC: H01F1/22

Abstract: A composite magnetic body includes soft magnetic metal particles and non-magnetic ceramic particles each having a particle size (D50) smaller than that of the soft magnetic metal particles.

公开(公告)号：US20240331907A1

公开(公告)日：2024-10-03

申请号：US18616887

申请日：2024-03-26

Applicant: TDK CORPORATION

Inventor： Hidenobu UMEDA ,  Masaki TAKAHASHI ,  Kaori SASAKI ,  Nami ENOMOTO

IPC: H01F5/06 ,  C03C10/00

CPC classification number: H01F5/06 ,  C03C10/0045

Abstract: An electronic component includes a glass ceramic sintered bod. The glass ceramic sintered body includes a main phase grain including at least one of a cordierite phase and an indialite phase, and a coating layer including a forsterite phase covering the main phase grain.

公开(公告)号：US20230402211A1

公开(公告)日：2023-12-14

申请号：US18330073

申请日：2023-06-06

Applicant: TDK CORPORATION

Inventor： Kouichi KAKUDA ,  Yuya OSHIMA ,  Kenji KOMORITA ,  Shigeshi OSAWA ,  Shinichi KONDO ,  Hiroyuki TANOUE ,  Kaori SASAKI ,  Takuya NIIBORI ,  Yukio TAKAHASHI ,  Hidenobu UMEDA

IPC: H01F1/34 ,  C04B35/26

CPC classification number: H01F1/344 ,  C04B35/265 ,  C04B2235/3274 ,  C04B2235/3293 ,  C04B2235/3277 ,  C04B2235/3298

Abstract: A ferrite composition includes a main component and a sub component. The main component includes an iron oxide in terms of Fe2O3, a copper oxide in terms of CuO, a zinc oxide in terms of ZnO, and a nickel oxide as its remainder. The sub component includes a cobalt oxide in terms of Co3O4, a tin oxide in terms of SnO2, and a bismuth oxide in terms of Bi2O3. A is −3.5 or more and 1.0 or less, provided that A=(α−18)/β; is defined, in which α is an amount of the zinc oxide represented by mol % in terms of ZnO in the main component, and β is an amount of the cobalt oxide represented by parts by weight in terms of Co3O4 with respect to 100 parts by weight of the main component.