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公开(公告)号：US20240304363A1
公开(公告)日：2024-09-12
申请号：US18667780
申请日：2024-05-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tomoya OOSHIMA , Yuuta HOSHINO , Koichi YAMADA , Kojiro TOKIEDA , Miki SASAKI
Abstract: An electronic component that includes: a base body; a glass film covering an outer surface of the base body; and an external electrode on an outer surface of the glass film and having at least an underlayer electrode, wherein the glass film includes: a base portion containing silicon oxide and an oxide of one or more metal elements of an alkali metal and an alkaline earth metal; and a specific portion containing silicon oxide and an oxide of a same metal element as that of the base portion, and wherein a content ratio of the same metal element in the specific portion is smaller than a content ratio of the one or more metal elements in the base portion.
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公开(公告)号：US20240021346A1
公开(公告)日：2024-01-18
申请号：US18475294
申请日：2023-09-27
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tomoya OOSHIMA , Yuuta HOSHINO , Koichi YAMADA , Miki SASAKI , Hironobu KUBOTA
CPC classification number: H01C7/04 , H01C1/1413
Abstract: An electronic component that includes: an element body; and an insulating film covering an outer surface of the element body. The element body has a crack that opens to the outer surface. In a cross section orthogonal to the outer surface, the crack has a first portion that extends from the opening and intersects an axis orthogonal to the outer surface. In addition, one portion of the insulating film penetrates into at least an inner space of the first portion of the crack.
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公开(公告)号：US20230377800A1
公开(公告)日：2023-11-23
申请号：US18362108
申请日：2023-07-31
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yuuta HOSHINO
CPC classification number: H01G4/248 , H01G4/30 , H01G4/0085 , H01F17/0013
Abstract: An electronic component that includes a ceramic body and an external electrode on a surface of the ceramic body. The external electrode includes a base layer in contact with the surface of the ceramic body; and a metal layer on a surface of the base layer, the base layer having a pore communicating from the surface of the base layer to an interface with the surface of the ceramic body, a part of the metal layer extends to the interface with the surface of the ceramic body through the pore, and a void ratio in the base layer is 1.5 vol % or less.
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公开(公告)号：US20220208463A1
公开(公告)日：2022-06-30
申请号：US17672205
申请日：2022-02-15
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yuuta HOSHINO
Abstract: An electronic component that includes: a ceramic body; and an external electrode on a surface of the ceramic body, wherein the external electrode includes: a base layer in contact with the surface of the ceramic body, the base layer including a granulate of a metal material and a continuous phase of a titanium-containing oxide present around the granulate of the metal material; and a plating layer on the base layer.
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公开(公告)号：US20250118462A1
公开(公告)日：2025-04-10
申请号：US18986789
申请日：2024-12-19
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tomoya OOSHIMA , Yuuta HOSHINO
IPC: H01C7/04
Abstract: An electronic component includes a base body and a glass film covering an outer surface of the base body. The glass film has a groove extending on an outer surface of the glass film. The groove is recessed from the outer surface of the glass film toward the outer surface side of the base body in a specific section in a direction orthogonal to the outer surface of the glass film. The bottom portion of the groove is located closer to the outer surface side of the glass film than the outer surface of the base body. In addition, the bottom portion of the groove has an arc shape in the specific section.
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Patent Agency Ranking
公开(公告)号：US20250118461A1
公开(公告)日：2025-04-10
申请号：US18983399
申请日：2024-12-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Daisho TSUBOKAWA , Tomoya OOSHIMA , Yuuta HOSHINO
Abstract: An electronic component includes a base body including a plurality of voids, a protective material covering a part or a whole of an outer surface of the base body, and an external electrode covering a part of an outer surface of the protective material. The protective material is glass containing a silane compound having a carbon chain with 3 or more carbon atoms. The protective material includes a filling portion occupying at least some of the voids, and a film portion covering the outer surface of the base body.
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公开(公告)号：US20240112835A1
公开(公告)日：2024-04-04
申请号：US18536992
申请日：2023-12-12
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tomoya OOSHIMA , Yuuta HOSHINO , Koichi YAMADA , Miki SASAKI
CPC classification number: H01C7/008 , H01C1/1413 , H01C7/041
Abstract: An electronic component that includes: a base body having an outer surface defining a recess with an inner surface, wherein, when the recess is viewed in a direction orthogonal to the outer surface, at least a part of an outer edge of the recess is curved, and when the recess is viewed in a section orthogonal to the outer surface, at least a part of the inner surface of the recess is curved; a wiring inside the base body; and a glass film covering the outer surface of the base body and not covering the inner surface of the recess.
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公开(公告)号：US20240096556A1
公开(公告)日：2024-03-21
申请号：US18522505
申请日：2023-11-29
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yuuta HOSHINO
CPC classification number: H01G4/2325 , H01G4/248 , H01G4/30
Abstract: An electronic component that includes: a ceramic body; and an external electrode on a surface of the ceramic body, wherein the external electrode includes: a base layer in contact with the surface of the ceramic body, the base layer including a granulate of a metal material and a continuous phase of a titanium-containing oxide present around the granulate of the metal material; and a plating layer on the base layer.
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公开(公告)号：US20240021360A1
公开(公告)日：2024-01-18
申请号：US18352937
申请日：2023-07-14
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yuuta HOSHINO
CPC classification number: H01F27/324 , H01F1/36 , H01F27/292 , H01F17/0013
Abstract: An electronic component includes a ceramic base containing a Cu element; an insulating film containing glass and at least partially covering a surface of the base; and a Cu segregate containing a Cu element. The Cu segregate is in contact with the base and the insulating film at an interface between the base and the insulating film.
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公开(公告)号：US20210253899A1
公开(公告)日：2021-08-19
申请号：US17173046
申请日：2021-02-10
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hironobu KUBOTA , Tomoya OOSHIMA , Yuuta HOSHINO
IPC: C09D183/04
Abstract: A coating process includes adding a body to a reactor; adding a metal alkoxide or precursors thereof to the reactor; adding a catalyst for the hydrolysis of the metal alkoxide to the reactor; and coating the surface of the body with a metal oxide-containing coating layer through the hydrolysis and dehydration condensation of the metal alkoxide. The addition of a body precedes at least one of the addition of a metal alkoxide or precursors thereof and the addition of a catalyst.
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