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公开(公告)号：US20180082786A1
公开(公告)日：2018-03-22
申请号：US15708464
申请日：2017-09-19
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroshi ASANO , Nobuyasu HAMAMORI
CPC classification number: H01G4/30 , H01G4/12 , H01G4/232 , H01G4/2325
Abstract: In a multilayer ceramic capacitor, A>B is satisfied by an atomic concentration ratio B of Si to Cu in a first organic layer disposed on a first base electrode layer located on a first end surface, an atomic concentration ratio A of Si to Cu in the first organic layer disposed on the first base electrode layer located on a first principal surface and a second principal surface, and an atomic concentration ratio A of Si to Cu in the first organic layer located directly on the first principal surface and the second principal surface.
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公开(公告)号：US20180082788A1
公开(公告)日：2018-03-22
申请号：US15708474
申请日：2017-09-19
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroshi ASANO , Nobuyasu HAMAMORI
Abstract: In a multilayer ceramic electronic component, a first organic layer covers from a first base electrode layer to at least a portion of the surface of a laminated body, and a second organic layer covers from a second base electrode layer to at least a portion of the surface of the laminated body, and a first plating layer includes a leading end in contact with the first organic layer, with the first organic layer of about 5 nm or more and about 500 nm or less in thickness at an end of the first base electrode layer, and a second plating layer has a leading end in contact with the second organic layer, with the second organic layer of about 5 nm or more and about 500 nm or less in thickness at an end of the second base electrode layer.
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公开(公告)号：US20180082789A1
公开(公告)日：2018-03-22
申请号：US15708476
申请日：2017-09-19
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroshi ASANO , Nobuyasu HAMAMORI , Koji MATSUSHITA
CPC classification number: H01G4/30 , H01G2/10 , H01G2/14 , H01G4/005 , H01G4/12 , H01G4/14 , H01G4/232
Abstract: A multilayer ceramic electronic component includes a first organic layer located on both principal surfaces and both side surfaces in contact with a first external electrode, and a second organic layer located on the both principal surfaces and the both side surfaces in contact with a second external electrode. The first organic layer includes an organic silicon compound and covers an end of a first base electrode layer of the first external electrode, and the second organic layer includes an organic silicon compound and covers an end of a second base electrode layer of the second external electrode. A first plating layer of the first external electrode includes an end in contact with the surface of the first organic layer, and a second plating layer of the second external electrode includes an end in contact with the surface of the second organic layer.
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公开(公告)号：US20130277415A1
公开(公告)日：2013-10-24
申请号：US13653453
申请日：2012-10-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroshi ASANO
IPC: C04B37/00
CPC classification number: C04B37/006 , B32B18/00 , B32B2311/08 , B32B2311/09 , C04B35/472 , C04B35/491 , C04B35/493 , C04B37/021 , C04B41/80 , C04B2235/3227 , C04B2235/3251 , C04B2235/3267 , C04B2235/3272 , C04B2235/656 , C04B2237/346 , C04B2237/348 , C04B2237/40 , C04B2237/408 , C04B2237/704 , C04B2237/706 , H05K1/0306 , H05K3/0011 , H05K3/0097 , H05K3/1291 , H05K2201/0191 , H05K2203/1126 , H05K2203/1536 , Y10T156/1105 , Y10T156/1111
Abstract: In a method for manufacturing ceramic plates, a Pd paste which does not diffuse into ceramic is formed; metal films each having a thickness such that ceramic layers to be formed after firing are not connected to each other in the lamination direction are formed on surfaces of ceramic green sheets using the Pd paste; then, a firing treatment at a firing temperature, which is a high temperature at which no glass component remains on surfaces of the ceramic layers after the firing and which is equal to or lower than a decomposition temperature of a ceramic material forming the ceramic layers, is performed for a laminate; oxygen present at the interfaces between the ceramic layers and the metal layers is removed by immersing a sintered body in n-butyl alcohol so as to separate the ceramic layers and the metal layers.
Abstract translation: 在制造陶瓷板的方法中，形成不扩散到陶瓷中的Pd糊料; 使用Pd浆料在陶瓷生片的表面上形成各自具有使得烧成后的陶瓷层在层叠方向上未连接的厚度的金属膜， 然后在烧成温度下进行烧成温度的烧成处理，该烧成温度是在烧成后陶瓷层的表面上不残留有玻璃成分，并且等于或低于形成陶瓷层的陶瓷材料的分解温度的高温， 对层压板进行; 通过将烧结体浸渍在正丁醇中以分离陶瓷层和金属层来除去存在于陶瓷层和金属层之间的界面处的氧。
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公开(公告)号：US20230387830A1
公开(公告)日：2023-11-30
申请号：US18450121
申请日：2023-08-15
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroshi ASANO
Abstract: An ultrasonic motor is provided that includes a stator having a plate-shaped vibrating body with first and second opposing main surfaces and a through-hole penetrating in a direction in which the first and second main surfaces face each other, and a piezoelectric element on the first main surface. Moreover, a stator fixing member is provided having a rotor in contact with the second main surface, a main body portion is disposed on the first main surface side, and a whirl-stop portion extends from the main body portion toward the vibrating body side. The whirl-stop portion and the through-hole of the stator have a polygonal shape in a plan view. The number of vertices of the whirl-stop portion and the through-hole is the same, and the whirl-stop portion and the through-hole are fitted to each other.
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Patent Agency Ranking
公开(公告)号：US20230364645A1
公开(公告)日：2023-11-16
申请号：US18358436
申请日：2023-07-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tsuguji KAMBAYASHI , Hiroshi ASANO , Hideaki KASHIURA
CPC classification number: B06B1/0644 , H02N2/103 , H02N2/12
Abstract: A device may include a stator including a vibrating body in a plate shape having a first principal surface and a second principal surface opposed to each other, and including a piezoelectric device provided on the first principal surface of the vibrating body. A device may include a rotor directly or indirectly in contact with the second principal surface of the vibrating body. A device may include a spring in a plate shape having an opening and configured to give elastic force to the rotor in a direction from a side of the rotor to a side of the stator. A device may include a shaft inserted into the opening of the spring and having a mating portion, wherein. A device may include a shape of the opening of the spring is a noncircular shape in a plan view.
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公开(公告)号：US20180082787A1
公开(公告)日：2018-03-22
申请号：US15708469
申请日：2017-09-19
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Nobuyasu HAMAMORI , Hiroshi ASANO , Yoshiyuki NOMURA , Koji MATSUSHITA , Ichitaro OKAMURA
Abstract: A multilayer ceramic electronic component includes a first plating layer in contact with a first organic layer and a second plating layer in contact with a second organic layer. When the first organic layer disposed on a first base electrode layer located on a first principal surface or a second principal surface, or the second organic layer disposed on a second base electrode layer located thereon, is referred to as an organic layer principal surface portion, and when the first organic layer disposed on the first base electrode layer located on a first end surface or a second end surface, or the second organic layer disposed on the second base electrode layer located thereon, is referred to as an organic layer end surface portion, the surface roughness of the organic layer end surface portion is larger than the surface roughness of the organic layer principal surface portion.
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公开(公告)号：US20230240144A1
公开(公告)日：2023-07-27
申请号：US18194775
申请日：2023-04-03
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Toshiaki YAMASHITA , Tsuguji KAMBAYASHI , Hideaki KASHIURA , Hiroshi ASANO
Abstract: An ultrasonic motor is provided with increased torque without an increase in size. The ultrasonic motor includes a stator having a plate-shaped vibrating body including first and second main surfaces and a piezoelectric element on the first main surface; and a rotor in contact with the second main surface. The piezoelectric element is disposed along a circumferential direction of a traveling wave so as to generate the traveling wave circulating around an axial direction Z by vibrating the vibrating body. The piezoelectric element vibrates the vibrating body in a vibration mode including a nodal line extending in the circumferential direction. A mass addition portion is provided along the circumferential direction on at least one of the first and second main surfaces of the vibrating body 3, and the mass addition portion is located outside the nodal line in a direction perpendicular to the axial direction Z.
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公开(公告)号：US20180082785A1
公开(公告)日：2018-03-22
申请号：US15708462
申请日：2017-09-19
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroshi ASANO , Nobuyasu HAMAMORI , Ichitaro OKAMURA , Koji MATSUSHITA , Yoshiyuki NOMURA
Abstract: A multilayer ceramic electronic component includes a first organic layer that covers from a first base electrode layer to at least a portion of a surface of a laminated body, a second organic layer that covers from a second base electrode layer to at least a portion of the surface of the laminated body, a first plating layer that includes a leading end in contact with the first organic layer and that has an atomic concentration ratio of Si to Cu of about 1% or more and about 5% or less between a Cu concentration and an Si concentration at the surface of the first organic layer, and a second plating layer that includes a leading end in contact with the second organic layer and that has an atomic concentration ratio of Si to Cu being about 1% or more and about 5% or less between a Cu concentration and an Si concentration at the surface of the second organic layer.
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公开(公告)号：US20150179921A1
公开(公告)日：2015-06-25
申请号：US14638168
申请日：2015-03-04
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroshi ASANO
IPC: H01L41/107 , H01L41/047
CPC classification number: H01L41/107 , H01L41/0472
Abstract: A piezoelectric transformer that includes a piezoelectric body having driving portions and a power generating portion, an input electrode, and an output electrode. The driving portions and the power generating portion are arranged in the lengthwise direction of the piezoelectric body. The driving portions are disposed symmetrically relative to a plane that passes through a center of the piezoelectric body in the lengthwise direction and is orthogonal to the lengthwise direction, occupy no less than half of the regions in the piezoelectric body, and are include two or more adjacent polarized regions.
Abstract translation: 一种压电变压器，包括具有驱动部分的压电体和发电部分，输入电极和输出电极。 驱动部和发电部沿压电体的长度方向配置。 驱动部相对于在长度方向上通过压电体的中心并且与长度方向正交的平面对称地配置，占据不小于压电体中的一半的区域，并且包括两个或更多个 相邻极化区域。
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