公开(公告)号：US10679794B2

公开(公告)日：2020-06-09

申请号：US16190696

申请日：2018-11-14

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yasuo Fujii ,  Hiromasa Saeki

IPC: H01G4/008 ,  H01G4/01 ,  H01G4/228 ,  H01G4/33 ,  H01K1/16 ,  H05K1/16 ,  H01G4/38 ,  H01L49/02 ,  H05K3/46 ,  H01G9/055 ,  H01G4/236

Abstract: A plurality of first and second capacitor parts and second capacitor parts are formed on opposed main surfaces of a foil shaped conductive substrate to sandwich the conductive substrate. The first and second capacitor parts are respectively coated with insulative protection layers. Terminal electrodes are respectively formed on main surfaces of the protection layers. The terminal electrodes and conductive parts of the first and second capacitor parts are respectively electrically connected via first via conductors and the terminal electrodes and the conductive substrate 1 are electrically connected to second via conductors.

公开(公告)号：US10361033B2

公开(公告)日：2019-07-23

申请号：US15611887

申请日：2017-06-02

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takayuki Kayatani ,  Takashi Sawada ,  Yasuo Fujii

IPC: H01G4/30 ,  H01G4/228 ,  H01G4/232 ,  H01G4/005 ,  H01G4/008 ,  H01G4/012 ,  H01G4/224 ,  H01G4/12

Abstract: A multilayer ceramic electronic component includes a laminated body, a first external electrode, a pair of second external electrodes, and a pair of insulating coating portions. The pair of insulating coating portions extends in a laminating direction between each of the pair of second external electrodes and the first external electrode on a second principal surface, from the second principal surface to respective portions of a first side surface and a second side surface. A maximum thickness of the first external electrode on the second principal surface is larger than a maximum thickness of the pair of second external electrodes on the second principal surface. The maximum thickness of the pair of second external electrodes on the second principal surface is larger than a maximum thickness of the pair of insulating coating portions on the second principal surface.

公开(公告)号：US10267674B2

公开(公告)日：2019-04-23

申请号：US14865584

申请日：2015-09-25

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Hiroshi Mifune ,  Seiji Hidaka ,  Yasuo Fujii

IPC: G01H17/00 ,  G01H11/08 ,  G01H1/00 ,  G06F17/50

Abstract: An analysis device constructs an analytical model with a circuit board and a medium, and applies a concentrated load grouping composed of concentrated loads to the circuit board. In this case, the concentrated loads are established such that the sum of the respective vectors is zero, and such that the torque is zero with respect to the center of gravity. The analysis device applies a finite element method to the analytical model to figure out the vibration of the circuit board, which is caused when the concentrated loads vibrate with a constant period. The change in the pressure of the medium is computed from the vibration of the circuit board, and the change in the pressure is converted to a sound pressure.

公开(公告)号：US10064281B2

公开(公告)日：2018-08-28

申请号：US15386172

申请日：2016-12-21

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yasuo Fujii

IPC: H01G4/30 ,  H01G4/232 ,  H05K1/18 ,  H01G4/005 ,  H01G4/248 ,  H01L23/498 ,  H01L23/00 ,  H05K1/11 ,  H01G2/06

CPC classification number: H05K1/185 ,  H01G2/06 ,  H01G4/005 ,  H01G4/232 ,  H01G4/248 ,  H01G4/30 ,  H01L23/49822 ,  H01L23/49827 ,  H01L23/49838 ,  H01L24/16 ,  H01L24/17 ,  H01L2224/16225 ,  H01L2224/16227 ,  H01L2224/16235 ,  H01L2924/00014 ,  H01L2924/14 ,  H01L2924/15192 ,  H01L2924/152 ,  H01L2924/19041 ,  H01L2924/19102 ,  H05K1/115 ,  H05K1/181 ,  H05K2201/10015 ,  H01L2224/13099

Abstract: In a capacitor, a width in a length direction of a first portion of a third outer electrode, which is a portion located on a first side surface, is greater than a width in a length direction of a second portion of the third outer electrode, which is a portion located on a first main surface. The first portion of the third outer electrode does not extend to first and second end surfaces.

公开(公告)号：US09666373B2

公开(公告)日：2017-05-30

申请号：US14701843

申请日：2015-05-01

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yasuo Fujii

IPC: H01G4/30 ,  H02M1/14 ,  H02M3/04 ,  H01G4/248 ,  H01G4/012 ,  H01G4/38 ,  H01G4/232

CPC classification number: H01G4/30 ,  H01G4/012 ,  H01G4/232 ,  H01G4/248 ,  H01G4/385 ,  H02M1/14 ,  H02M3/04

Abstract: A voltage smoothing circuit includes a multilayer capacitor including a first capacitance unit and a second capacitance unit and a regulator including an input terminal which is electrically connected to the second capacitance unit and an output terminal which is electrically connected to the first capacitance unit. The regulator calculates a first voltage which is applied to the first capacitance unit based on a second voltage which is applied to the second capacitance unit from the input terminal such that a potential difference which is applied to the first capacitance unit decreases or increases when a potential difference which is applied to the second capacitance unit increases or decreases, and outputs the first voltage from the output terminal.

公开(公告)号：US09490071B2

公开(公告)日：2016-11-08

申请号：US14148992

申请日：2014-01-07

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yasuo Fujii

IPC: H01G4/30 ,  H01G4/012 ,  H01G4/12

CPC classification number: H01G4/30 ,  H01G4/012 ,  H01G4/12

Abstract: A multilayer capacitor that achieves reduced acoustic noise includes a capacitor body including a capacitance generating portion, a first outer layer portion, and a second outer layer portion. First and second internal electrodes are provided in the capacitance generating portion. The first outer layer portion is located between the capacitance generating portion and a first principle surface. The second outer layer portion is located between the capacitance generating portion and a second principle surface. The second outer layer portion is thicker than the first outer layer portion. At least one of a concave portion and a convex portion is provided on the second principle surface.

Abstract translation: 实现降低的声学噪声的层叠电容器包括：电容器体，包括电容产生部，第一外层部和第二外层部。 第一和第二内部电极设置在电容产生部分中。 第一外层部分位于电容产生部分和第一原理表面之间。 第二外层部分位于电容产生部分和第二主表面之间。 第二外层部分比第一外层部分厚。 凹部和凸部中的至少一个设置在第二原理面上。