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公开(公告)号：US20240331922A1
公开(公告)日：2024-10-03
申请号：US18743164
申请日：2024-06-14
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi SHIGEMATSU , Kenichi ISHIZUKA
CPC classification number: H01F27/2804 , H01F27/292 , H01F27/40 , H01F2027/2809
Abstract: An electronic component includes a body including insulating layers laminated in a Z-axis direction, and a primary coil and a secondary coil inside the body. The secondary coil includes wiring patterns separated by intervals in the Z-axis direction. The primary coil includes wiring patterns separated by intervals in the Z-axis direction, and a gap in a region sandwiched by adjacent wiring patterns. A dimension of the gap is larger than a distance between the adjacent wiring patterns that do not include the gap.
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公开(公告)号：US20230369735A1
公开(公告)日：2023-11-16
申请号：US18225778
申请日：2023-07-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi SHIGEMATSU , Kenichi ISHIZUKA
CPC classification number: H01P5/19 , H01P1/18 , H04B1/0483
Abstract: A power splitter includes a common port, a first port, a second port, a first phase shifter connected between the common port and the first port, and a second phase shifter connected between the common port and the second port. The first phase shifter includes a first capacitor, a first inductor, and a second inductor. The second phase shifter includes a second capacitor, a third inductor, and a fourth inductor.
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公开(公告)号：US20220059278A1
公开(公告)日：2022-02-24
申请号：US17518669
申请日：2021-11-04
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi SHIGEMATSU , Kenichi ISHIZUKA
Abstract: A multi-terminal chip inductor includes coil conductors in base material layers, an interlayer connection conductor connecting the coil conductors across layers, and external electrodes each connected to portions of a series of coil conductors defined by the coil conductors and the interlayer connection conductor. The external electrodes include a common external electrode. A first of the coil conductors to which the common external electrode and a first external electrode adjacent to the common external electrode in a circuit are connected, includes first coil conductors connected to each other in parallel.
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公开(公告)号：US20170324158A1
公开(公告)日：2017-11-09
申请号：US15662325
申请日：2017-07-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hisashi AKIYAMA , Kenichi ISHIZUKA
Abstract: A first end of a first conductor pattern of a first coil conductor is connected to a power supply terminal, and a second end of the first conductor pattern is connected to an antenna terminal. A second conductor pattern includes second coil conductors. A first end of the second conductor pattern is connected to the antenna terminal and the second end of the first conductor pattern, and a second end of the second conductor pattern is connected to a ground terminal. The second conductor pattern magnetically couples with the first conductor pattern. The second end of the first conductor pattern and the first end of the second conductor pattern are connected to the antenna terminal via a routing pattern that extends to magnetically couple with at least either the first conductor pattern or the second conductor pattern.
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公开(公告)号：US20160248450A1
公开(公告)日：2016-08-25
申请号：US15145196
申请日：2016-05-03
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenichi ISHIZUKA
CPC classification number: H04B1/0053 , H01F17/0013 , H01F19/04 , H01F27/245 , H01F27/2804 , H01F27/29 , H01F2027/2809 , H03H7/38 , H04B1/40 , H04W88/06
Abstract: In a transformer, first and second coils are provided on different substrate layers of a multilayer body. The first and second coil conductors are interlayer-connected to each other by interlayer connection conductors. A coil aperture defined by the first coil conductor and a coil aperture defined by the second coil conductor overlap each other when seen in a plan view from a laminating direction of the multilayer body. The first and second coil conductors are connected to each other at at least two places with the interlayer connection conductors interposed therebetween. A parallel connection portion including a first portion of the first coil conductor and a first portion of the second coil conductor is provided, and a series connection portion including a second portion of the first coil conductor and a second portion of the second coil conductor is provided.
Abstract translation: 在变压器中，第一和第二线圈设置在多层体的不同基底层上。 第一和第二线圈导体通过层间连接导体彼此层间连接。 由第一线圈导体限定的线圈孔和由第二线圈导体限定的线圈孔在从多层体的层叠方向看的平面图中彼此重叠。 第一和第二线圈导体在至少两个位置处彼此连接，夹层间连接导体插入其间。 设置包括第一线圈导体的第一部分和第二线圈导体的第一部分的平行连接部分，并且设置包括第一线圈导体的第二部分和第二线圈导体的第二部分的串联连接部分 。
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Patent Agency Ranking
6.发明申请IMPEDANCE CONVERSION RATIO SETTING METHOD, IMPEDANCE CONVERSION CIRCUIT, AND COMMUNICATION TERMINAL APPARATUS 有权阻抗转换比例设置方法，阻抗转换电路和通信终端设备公开(公告)号：US20160248397A1
公开(公告)日：2016-08-25
申请号：US15142137
申请日：2016-04-29
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenichi ISHIZUKA
CPC classification number: H03H7/38 , H01F27/2804 , H01F27/29 , H01F41/041 , H01F2027/2809 , H01Q1/50
Abstract: Coil openings of a primary side coil element of a first transformer, a secondary side coil element of the first transformer, a primary side coil element of a second transformer, and a secondary side coil element of the second transformer overlap with one another when viewed from above in a lamination direction. The primary side coil element of the first transformer and the primary side coil element of the second transformer are connected in parallel, and the secondary side coil element of the first transformer and the secondary side coil element of the second transformer are connected in parallel. An impedance conversion ratio is defined in accordance with a lamination order of the primary side coil element and the secondary side coil element of the first transformer with respect to a lamination order of the primary side coil element and the secondary side coil element of the second transformer within a multilayer body.
Abstract translation: 第一变压器的初级侧线圈元件，第一变压器的次级侧线圈元件，第二变压器的初级侧线圈元件和第二变压器的次级侧线圈元件的线圈开口彼此重叠，当从 在层叠方向上方。 第一变压器的初级侧线圈元件和第二变压器的初级侧线圈元件并联连接，第一变压器的次级侧线圈元件和第二变压器的次级侧线圈元件并联连接。 阻抗转换比根据第一变压器的初级侧线圈元件和次级侧线圈元件的层叠顺序相对于第一变压器的初级侧线圈元件和次级侧线圈元件的层叠顺序来定义 在多层体内。
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7.发明申请公开(公告)号：US20140266964A1
公开(公告)日：2014-09-18
申请号：US13834487
申请日：2013-03-15
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Noboru KATO , Kenichi ISHIZUKA , Noriyuki UEKI
IPC: H01Q1/50
Abstract: In a case in which a capacitor is not provided in parallel with a second inductance element, the impedance ratio between a first inductance element and the second inductance element is constant regardless of the frequency, but when a capacitor is provided, the parallel impedance of the capacitor and the second inductance element gradually increases at frequencies equal to and below the resonant frequency. Consequently, at frequencies equal to or below the resonant frequency, the higher the frequency becomes, the larger the value of the real portion of the impedance observed on a high-frequency-circuit side becomes. Therefore, by appropriately setting the values of the first inductance element, the second inductance element, and the capacitor, the frequency characteristics of the real portion of the impedance observed on the high-frequency-circuit side can be set to be similar to the frequency characteristics of the radiation resistance of the antenna.
Abstract translation: 在不与第二电感元件并联设置电容器的情况下，第一电感元件和第二电感元件之间的阻抗比率与频率无关，但是当提供电容器时，并联阻抗 电容器和第二电感元件在等于和低于谐振频率的频率处逐渐增加。 因此，在等于或低于谐振频率的频率下，频率越高，在高频电路侧观测到的阻抗的实部的值越大。 因此，通过适当地设定第一电感元件，第二电感元件和电容器的值，可以将在高频电路侧观测到的阻抗的实部的频率特性设定为与频率 天线的辐射电阻特性。
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公开(公告)号：US20210407721A1
公开(公告)日：2021-12-30
申请号：US17469994
申请日：2021-09-09
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi SHIGEMATSU , Kenichi ISHIZUKA
Abstract: A circuit element includes a multilayer body, internal elements inside the multilayer body, and first outer electrodes and second outer electrodes on outer surfaces of the multilayer body, and the multilayer body includes laminated base material layers. The internal elements include coil conductors connected to the second outer electrodes, the coil conductors have a winding axis in the laminating direction of the base material layers, the first outer electrodes are in contact with a mounting surface of the multilayer body, the second outer electrodes are in contact with side edges of the multilayer body and separated from the mounting surface, and maximum widths of the second outer electrodes are smaller than maximum widths of the first outer electrodes.
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公开(公告)号：US20200153099A1
公开(公告)日：2020-05-14
申请号：US16744226
申请日：2020-01-16
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenichi ISHIZUKA
Abstract: An antenna device includes first and second radiating elements, and an antenna coupling element. The antenna coupling element includes a primary coil electrically connected between the first radiating element and a feed circuit and a secondary coil inductively coupled to the primary coil and electrically connected between the second radiating element and a ground. A capacitor is provided between the primary coil and the secondary coil, thus causing current to flow from the primary coil to the secondary coil or the second radiating element via the capacitor even at an anti-resonant frequency of the first radiating element.
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公开(公告)号：US20190157746A1
公开(公告)日：2019-05-23
申请号：US16258869
申请日：2019-01-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenichi ISHIZUKA , Takeaki TAMAYAMA
Abstract: An electronic device includes an antenna, and a plate-shaped heat spreader including first and second metal layers that are stacked, a working fluid in an enclosed space interposed between the first and second metal layers, and a joint along which outer peripheral portions around the enclosed space are joined. The heat spreader includes an operational region in which the enclosed space is located and a quasi-operational region other than the enclosed space. The antenna is provided in the quasi-operational region in a plan view of the heat spreader.
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