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公开(公告)号：US20240237191A1
公开(公告)日：2024-07-11
申请号：US18524031
申请日：2023-11-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenji MATSUDA
IPC: H05K1/02
CPC classification number: H05K1/0219 , H05K1/028 , H05K2201/10098
Abstract: A multilayer resin substrate includes first and second substrates joined to overlap each other, a first signal electrode on a joint surface between the first and second substrates, a first via-conductor in the first substrate and joined to the first signal electrode, a first ground electrode in or on the second substrate and overlapping the first signal electrode, a first floating electrode in the second substrate and between the first signal electrode and the first ground electrode. The first signal electrode includes a first joint joined to the first via-conductor and a wiring portion extending in a signal transmission direction. In a line-width direction transverse to the signal transmission direction, the first joint has a line width greater than that of the wiring portion. When viewed in the thickness direction, the first floating electrode overlaps the first joint of the first signal electrode.
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公开(公告)号：US20230066411A1
公开(公告)日：2023-03-02
申请号：US17983444
申请日：2022-11-09
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenji MATSUDA , Takuya HASHIMOTO
Abstract: A transmission line includes a substrate including insulator layers, a mounting electrode on a front layer of the substrate, a signal conductor, a first ground conductor, a first connecting electrode that electrically connects the mounting electrode and the signal conductor and is between the signal conductor and the first ground conductor in a laminating direction, a first inter-layer connecting conductor that is electrically connected between the mounting electrode and the first connecting electrode and is bonded to the first connecting electrode, and a second inter-layer connecting conductor that is electrically connected between the signal conductor and the first connecting electrode, is bonded to the first connecting electrode, and does not overlap with the first inter-layer connecting conductor when viewed in the laminating direction. The first ground conductor does not overlap with at least a portion of the first connecting electrode when viewed in the laminating direction.
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公开(公告)号：US20190109597A1
公开(公告)日：2019-04-11
申请号：US16202378
申请日：2018-11-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenji MATSUDA
Abstract: An atomic oscillator includes a light source, a gas cell including an internal space in which an alkali metal atom is sealed, and a photodetector to detect light emitted from the light source and passing through the gas cell. A radiation region of the light source is wider than a sectional area of the internal space at a distal end of the gas cell relative to the light source.
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Patent Agency Ranking
公开(公告)号：US20230380075A1
公开(公告)日：2023-11-23
申请号：US18229717
申请日：2023-08-03
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenji MATSUDA
CPC classification number: H05K3/4644 , H05K3/303 , H05K1/0242 , H05K1/181 , H05K2201/09336 , H05K2201/09354 , H05K2203/1572 , H05K2201/10098
Abstract: A multilayer body includes insulator layers including a first insulator layer laminated in a vertical direction. Electrodes include a signal electrode and are provided at an upper main surface of the first insulator layer and arranged in a transverse direction. At least a portion of each of the electrodes is exposed to outside from a circuit board. First and second interlayer connection conductors extend through the first insulator layer in the vertical direction and electrically connect the signal electrode and a signal conductor layer. Mounting portions are located at the portions of the electrodes that are exposed to the outside from the circuit board. The first and second interlayer connection conductors are electrically connected to the signal electrode so as not to overlap the mounting portion that is provided at the signal electrode.
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公开(公告)号：US20190181871A1
公开(公告)日：2019-06-13
申请号：US16274291
申请日：2019-02-13
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenji MATSUDA
Abstract: An atomic oscillator including a light source, a gas cell including an internal space in which alkali metal atoms are encapsulated, and a light detector that detects light which has emitted from the light source and has passed through the gas cell. The alkali metal atoms encapsulated in the internal space are adhered, in a liquid state or a solid state, to at least an incident window, such that light incident on the incident window is reduced.
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公开(公告)号：US20240107659A1
公开(公告)日：2024-03-28
申请号：US18525949
申请日：2023-12-01
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenji MATSUDA
CPC classification number: H05K1/0213 , H05K1/0313 , H05K1/11 , H05K1/181
Abstract: A circuit board includes a substrate, a first mounting conductor, a first ground conductor, a first floating conductor, a signal line conductor, and a connection conductor. The first mounting conductor is on a surface of the substrate and includes a first external connection conductor. The first ground conductor is positioned on the substrate opposite to the first mounting conductor. The floating conductor is between the first mounting conductor and the first ground conductor. The signal line conductor is inside the substrate. The connection conductor connects the first mounting conductor and the signal line conductor. When viewed in a thickness direction of the substrate, the signal line conductor and the connection conductor are each provided at a position different from the first external connection conductor, and the floating conductor overlaps an entirety or substantially an entirety of the first external connection conductor.
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公开(公告)号：US20240014536A1
公开(公告)日：2024-01-11
申请号：US18371591
申请日：2023-09-22
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hironobu TAKAHASHI , Fumiya ISONO , Kenji MATSUDA
CPC classification number: H01P3/08 , H05K1/028 , H05K1/0219 , H05K2201/0723 , H05K2201/09609
Abstract: In a first region, a multilayer body is bent along a first bending line such that a first main surface is located farther on an outer peripheral side than a second main surface. In a second region, the multilayer body is bent along a second bending line such that the first main surface is located farther on an inner peripheral side than the second main surface. In the first region, a first metal foil layer is located farther on an outer peripheral side than a center of the multilayer body. In the second region, a second metal foil layer is located farther on the outer peripheral side than the center of the multilayer body. In the second region, a distance between the second metal foil layer and the second main surface is shorter than a distance between the second metal foil layer and the first main surface.
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公开(公告)号：US20220029265A1
公开(公告)日：2022-01-27
申请号：US17495852
申请日：2021-10-07
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Nobuyuki TENNO , Nobuo IKEMOTO , Takahiro BABA , Kenji MATSUDA
Abstract: A transmission line includes a ground conductor between first and second signal conductors. A substrate includes a first insulating layer and a second insulating layer having a relative permittivity lower than a relative permittivity of the first insulating layer. The first and second insulating layers are laminated in the thickness direction of the substrate and in contact with each other. The first and second signal conductors and the ground conductor are on an interface at which the first and second insulating layers are in contact with each other. The first and second signal conductors and the ground conductor each include a surface in contact with the first insulating layer and a surface in contact with the second insulating layer, the surface in contact with the second insulating layer being larger than the surface in contact with the first insulating layer.
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