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公开(公告)号：US10175126B2
公开(公告)日：2019-01-08
申请号：US14870201
申请日：2015-09-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Keisuke Araki , Hideki Kawamura , Jun Endo
Abstract: A pressing force sensor that includes a sensor element configured with a piezoelectric film, a lead terminal for connection to an external circuit, a wiring conductor which connects pressing force detection electrodes and the lead terminal, and a flexible printed circuit board which withstands solder reflow temperatures. The flexible printed circuit board has the pressing force detection electrodes formed on a first principal surface thereof, and is folded via a folding line while the first principal surface faces inward. The sensor element is deflected by a pressing force applied to a second principal surface which faces outward and is in a first area of the flexible printed circuit board which is on one side with respect to the folding line, and a signal corresponding to the pressing force is thus taken out from the pressing force detection electrodes.
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公开(公告)号：US11276527B2
公开(公告)日：2022-03-15
申请号：US16574232
申请日：2019-09-18
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Keisuke Araki
Abstract: A multilayer ceramic capacitor that includes a laminate having a plurality of dielectric layers and a plurality of internal electrodes that are alternately stacked, and external electrodes. Each of the dielectric layers contains first crystal grains and second crystal grains that each contain Ba, Ti, and a rare-earth element. A first mole ratio M1 of the rare-earth element to the Ti in a range from an interface to 50 nm inclusive of the first crystal grains and a second mole ratio M2 of the rare-earth element to the Ti in a range of 50 nm to 100 nm inclusive from the interface satisfy 0.95≤M1/M2≤1.05. A third mole ratio M3 of the rare-earth element to the Ti in the second crystal grains is half or less of a fourth mole ratio M4 of the rare-earth element to the Ti in the first crystal grains.
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公开(公告)号：US12288637B2
公开(公告)日：2025-04-29
申请号：US17569557
申请日：2022-01-06
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Rintaro Sugi , Keisuke Araki
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.
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公开(公告)号：US20150192482A1
公开(公告)日：2015-07-09
申请号：US14596381
申请日：2015-01-14
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Keisuke Araki , Hideki Kawamura , Jun Endo
CPC classification number: G01L1/16 , G01L1/205 , G01L1/225 , G01L1/2287 , G01L5/0038
Abstract: A pressing force sensor that includes a sensor element configured with a piezoelectric film, a lead terminal for connection to an external circuit, a wiring conductor which connects pressing force detection electrodes and the lead terminal, and a flexible printed circuit board which withstands solder reflow temperatures. The flexible printed circuit board has the pressing force detection electrodes formed on a first principal surface thereof, and is folded via a folding line while the first principal surface faces inward. The sensor element is deflected by a pressing force applied to a second principal surface which faces outward and is in a first area of the flexible printed circuit board which is on one side with respect to the folding line, and a signal corresponding to the pressing force is thus taken out from the pressing force detection electrodes.
Abstract translation: 一种按压力传感器，包括：构造有压电膜的传感器元件，与外部电路连接的引线端子，连接按压力检测电极的引线导体和引线端子;以及耐受回流焊温度的柔性印刷电路板 。 柔性印刷电路板具有形成在其第一主表面上的按压力检测电极，并且通过折叠线折叠，同时第一主表面向内。 传感器元件通过施加到面向外的第二主表面的压力而偏转，并且位于柔性印刷电路板的相对于折叠线的一侧的第一区域中，并且与按压力相对应的信号 因此从按压力检测电极中取出。
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公开(公告)号：US12283429B2
公开(公告)日：2025-04-22
申请号：US17496044
申请日：2021-10-07
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Taku Mizuno , Keisuke Araki , Hiroyuki Wada
IPC: H01G4/12 , C04B35/46 , C04B35/468 , H01G4/30
Abstract: A dielectric ceramic that includes multiple crystal grains, each of the multiple crystal grains having an interface, a barium titanate (BaTiO3)-based compound as a main component thereof, and a rare earth element. The dielectric ceramic has a cross-section in which the multiple crystal grains has a concentration varying region, a high concentration region, and a low concentration region. The concentration varying region has an RE/Ti ratio differing by 3% or more. The high concentration region has an RE/Ti ratio of 5% to 20%. The low concentration region has an RE/Ti ratio of 0% to 2%.
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Patent Agency Ranking
公开(公告)号：US10476133B2
公开(公告)日：2019-11-12
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
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.
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公开(公告)号：US10021787B2
公开(公告)日：2018-07-10
申请号：US15373545
申请日：2016-12-09
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshihito Otsubo , Keisuke Araki , Yuki Ito , Kenji Kubota
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.
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公开(公告)号：US20160018276A1
公开(公告)日：2016-01-21
申请号：US14870201
申请日：2015-09-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Keisuke Araki , Hideki Kawamura , Jun Endo
IPC: G01L1/16
CPC classification number: G01L1/16 , G01L1/205 , G01L1/225 , G01L1/2287 , G01L5/0038
Abstract: A pressing force sensor that includes a sensor element configured with a piezoelectric film, a lead terminal for connection to an external circuit, a wiring conductor which connects pressing force detection electrodes and the lead terminal, and a flexible printed circuit board which withstands solder reflow temperatures. The flexible printed circuit board has the pressing force detection electrodes formed on a first principal surface thereof, and is folded via a folding line while the first principal surface faces inward. The sensor element is deflected by a pressing force applied to a second principal surface which faces outward and is in a first area of the flexible printed circuit board which is on one side with respect to the folding line, and a signal corresponding to the pressing force is thus taken out from the pressing force detection electrodes.
Abstract translation: 一种按压力传感器，包括：构造有压电膜的传感器元件，与外部电路连接的引线端子，连接按压力检测电极的引线导体和引线端子;以及耐受回流焊温度的柔性印刷电路板 。 柔性印刷电路板具有形成在其第一主表面上的按压力检测电极，并且通过折叠线折叠，同时第一主表面向内。 传感器元件通过施加到面向外的第二主表面的压力而偏转，并且位于柔性印刷电路板的相对于折叠线的一侧的第一区域中，并且与按压力相对应的信号 因此从按压力检测电极中取出。
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公开(公告)号：US20220130608A1
公开(公告)日：2022-04-28
申请号：US17496044
申请日：2021-10-07
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Taku Mizuno , Keisuke Araki , Hiroyuki Wada
IPC: H01G4/12 , H01G4/30 , C04B35/468
Abstract: A dielectric ceramic that includes multiple crystal grains, each of the multiple crystal grains having an interface, a barium titanate (BaTiO3)-based compound as a main component thereof, and a rare earth element. The dielectric ceramic has a cross-section in which the multiple crystal grains has a concentration varying region, a high concentration region, and a low concentration region. The concentration varying region has an RE/Ti ratio differing by 3% or more. The high concentration region has an RE/Ti ratio of 5% to 20%. The low concentration region has an RE/Ti ratio of 0% to 2%.
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公开(公告)号：US09739671B2
公开(公告)日：2017-08-22
申请号：US14596381
申请日：2015-01-14
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Keisuke Araki , Hideki Kawamura , Jun Endo
CPC classification number: G01L1/16 , G01L1/205 , G01L1/225 , G01L1/2287 , G01L5/0038
Abstract: A pressing force sensor that includes a sensor element configured with a piezoelectric film, a lead terminal for connection to an external circuit, a wiring conductor which connects pressing force detection electrodes and the lead terminal, and a flexible printed circuit board which withstands solder reflow temperatures. The flexible printed circuit board has the pressing force detection electrodes formed on a first principal surface thereof, and is folded via a folding line while the first principal surface faces inward. The sensor element is deflected by a pressing force applied to a second principal surface which faces outward and is in a first area of the flexible printed circuit board which is on one side with respect to the folding line, and a signal corresponding to the pressing force is thus taken out from the pressing force detection electrodes.
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