公开(公告)号：US20230299452A1

公开(公告)日：2023-09-21

申请号：US18200011

申请日：2023-05-22

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Nobuo IKEMOTO ,  Noriaki OKUDA ,  Kosuke NISHIO ,  Keisuke ARAKI

IPC: H01P3/08

CPC classification number: H01P3/08

Abstract: In a transmission line, a multilayer body includes a hollow portion above a signal conductor layer and below a ground conductor layer and overlapping the ground conductor layer when viewed in an up-down direction, and a spacer facing the hollow portion. In a cross section orthogonal to a front-back direction, an overlapping region is a region in the hollow portion in which the hollow portion overlaps the spacer in the up-down direction. In a cross section orthogonal to the front-back direction, a non-overlapping region is a region in the hollow portion in which the hollow portion does not overlap the spacer in the up-down direction. A length of the hollow portion in the up-down direction in the overlapping region is shorter than a length of the hollow portion in the up-down direction in the non-overlapping region.

公开(公告)号：US20250104917A1

公开(公告)日：2025-03-27

申请号：US18976399

申请日：2024-12-11

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Keisuke ARAKI

IPC: H01G4/12 ,  H01G4/30

Abstract: A multilayer ceramic capacitor includes dielectric layers including at least Ti, a region in a center portion in a width direction and a lamination direction of the dielectric layers with a dimension in the width direction of about 800 nm and a dimension in the lamination direction of about 1 nm is divided into 800 cells with a size of a dimension in the width direction of about 1 nm and a dimension in the lamination direction of about 1 nm. When a cell in which a mole ratio of rare earths is about 5 mol % or more with respect to 100 mol of Ti is a high concentration cell, about 75% or more and less than about 100% of the 800 cells in the region are high concentration cells.

公开(公告)号：US20240145170A1

公开(公告)日：2024-05-02

申请号：US18393765

申请日：2023-12-22

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hiroyuki WADA ,  Taku MIZUNO ,  Keisuke ARAKI

IPC: H01G4/12 ,  H01G4/30

CPC classification number: H01G4/1218 ,  H01G4/30

Abstract: A multilayer ceramic capacitor includes a base body including dielectric ceramic layers and internal electrode layers stacked in a thickness direction, and a pair of external electrodes on first and second end surfaces and electrically connected to the internal electrode layers. The dielectric ceramic layers include, as a main component, crystal grains including a perovskite complex oxide including barium and titanium, and a rare earth element, and include, in a cross section including the thickness direction, a rare earth element high-concentration region in an area proportion of about 50% or more, the rare earth element high-concentration region including the rare earth element in a molar ratio of the rare earth element to titanium of about 0.04 or more and about 0.30 or less.

公开(公告)号：US20170094793A1

公开(公告)日：2017-03-30

申请号：US15373545

申请日：2016-12-09

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yoshihito OTSUBO ,  Keisuke ARAKI ,  Yuki ITO ,  Kenji KUBOTA

IPC: H05K1/14 ,  H05K1/03 ,  H05K1/18 ,  H05K1/02

CPC classification number: H05K1/147 ,  H05K1/0243 ,  H05K1/028 ,  H05K1/0281 ,  H05K1/0313 ,  H05K1/181 ,  H05K7/142

Abstract: A resin substrate combined structure includes a first resin substrate including a flexible resin defining a main material and includes a first portion, a second resin substrate including a flexible resin defining a main material and includes a second portion spaced from the first portion in a thickness direction, and an insulating member that envelops the first portion and the second portion while retaining a relative positional relationship between the first portion and the second portion. The insulating member includes a material with a higher rigidity than any of the main material of the first resin substrate and that of the second resin substrate.

公开(公告)号：US20160372819A1

公开(公告)日：2016-12-22

申请号：US15256822

申请日：2016-09-06

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Bunta OKAMOTO ,  Isamu MORITA ,  Satoshi ISHINO ,  Jun SASAKI ,  Yoshihito OTSUBO ,  Keisuke ARAKI ,  Norio SAKAI

IPC: H01Q1/24 ,  H01Q1/48 ,  H01Q1/38

Abstract: An electrical element includes a flexible antenna and a rigid member higher in rigidity than the flexible antenna. At least one of the flexible antenna and the rigid member is made of thermoplastic resin. A conductor pattern defining at least a portion of a section that performs the main function of the electrical element is provided at the flexible antenna. No conductor pattern that performs the main function of the electrical element is provided at the rigid member. Opposing surfaces of the flexible antenna and the rigid member are directly joined to each other.

Abstract translation: 电气元件包括柔性天线和刚性高于柔性天线的刚性构件。 柔性天线和刚性构件中的至少一个由热塑性树脂制成。 在柔性天线处提供限定执行电气元件的主要功能的部分的至少一部分的导体图案。 没有执行电气元件的主要功能的导体图案设置在刚性构件上。 柔性天线和刚性构件的相对表面彼此直接接合。

公开(公告)号：US20220130593A1

公开(公告)日：2022-04-28

申请号：US17569557

申请日：2022-01-06

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Rintaro SUGI ,  Keisuke ARAKI

IPC: H01F27/28 ,  H01F27/29 ,  H01F27/32 ,  H01F41/04 ,  H01F41/12

Abstract: A multilayer resin substrate includes a stacked body, and a coil including a first coil conductor pattern and a second coil conductor pattern. The second coil conductor pattern includes a wide portion with a line width larger than a line width of the first coil conductor pattern. The wide portion includes overlapping portions that overlap with the first coil conductor pattern, and non-overlapping portions that do not overlap with the first coil conductor pattern, when viewed in a Z-axis direction. Adjacent non-overlapping portions in the Z-axis direction, when viewed in the Z-axis direction, protrude in opposite directions to each other in a radial direction, with respect to the first coil conductor pattern.

公开(公告)号：US20220130592A1

公开(公告)日：2022-04-28

申请号：US17569548

申请日：2022-01-06

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Rintaro SUGI ,  Keisuke ARAKI

IPC: H01F27/28 ,  H01F5/00 ,  H01F41/04

Abstract: A multilayer resin substrate includes a stacked body and a coil including coil conductor patterns. A first coil conductor pattern includes a first non-overlapping portion not overlapping with a second coil conductor pattern, when viewed in a Z-axis direction. A second coil conductor pattern includes a second non-overlapping portion not overlapping with the first coil conductor pattern, when viewed in the Z-axis direction. The first non-overlapping portion protrudes more to an outer peripheral side in a radial direction than the second coil conductor pattern, and the second non-overlapping portion protrudes to an inner peripheral side in the radial direction.