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公开(公告)号：US10304629B2
公开(公告)日：2019-05-28
申请号：US15685917
申请日：2017-08-24
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shohei Kitamura , Kotaro Mizuno
IPC: H01G4/005 , H01G4/228 , H01G4/30 , H01G4/258 , H01G4/012 , H01G4/248 , H01G4/33 , H01G4/008 , H01G4/12 , H01G4/232
Abstract: In an embodiment, a multilayer ceramic capacitor 10 has a first metal layer 14 having many holes 14a, and a second metal layer 15 having many holes 15a, with a clearance CL provided in between in the length direction, on the other height-direction side face of the capacitor body; the first metal layer 14 is partially covered by a third part 12c of a first external electrode 12, while the remainder is exposed; and the second metal layer 15 is partially covered by a third part 13c of a second external electrode 13, while the remainder is exposed. The multilayer ceramic capacitor can have excellent heat dissipation property.
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公开(公告)号：US11004607B2
公开(公告)日：2021-05-11
申请号：US15903712
申请日：2018-02-23
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shohei Kitamura , Yukihiro Konishi , Kotaro Mizuno , Yoichi Kato , Yusuke Kowase , Toru Makino , Yoshinori Tanaka
Abstract: A method for manufacturing a multilayer ceramic capacitor includes: producing a plurality of dielectric green sheets; producing therefrom a plurality of internal electrode-printed green sheets; producing therefrom a plurality of individually cut unsintered laminates by stacking some of the plurality of dielectric green sheets, as cover layers, and the plurality of internal electrode-printed green sheets together; producing therefrom element body precursors by applying a ceramic paste to side faces of the unsintered laminates for forming side margins thereon, wherein an application thickness of the ceramic paste is adjusted in a manner such that a thickness of the side margins is greater than a thickness of the cover layers in the final product; producing therefrom element bodies by sintering; and forming external electrodes on at least one of principal faces and on both end faces of the element bodies.
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3.发明授权公开(公告)号：US11557433B2
公开(公告)日：2023-01-17
申请号：US17227106
申请日：2021-04-09
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shohei Kitamura , Yukihiro Konishi , Kotaro Mizuno , Yoichi Kato , Yusuke Kowase , Toru Makino , Yoshinori Tanaka
Abstract: A multilayer ceramic capacitor includes an element body of roughly rectangular solid shape which is constituted by dielectric layers alternately stacked with internal electrode layers having different polarities, with a pair of cover layers formed on it to cover the top and bottom faces in the direction of lamination of the foregoing, and which has a pair of principal faces, a pair of end faces, and a pair of side faces, wherein external electrodes are formed on the pair of end faces and at least one of the pair of principal faces of the element body, and Tt representing the thickness of the external electrode and Tc representing the thickness of the cover layer satisfy the relationship of 1/30≤Tt/Tc≤4/5, and the thickness of the cover layers, or Tc, is 10 μm or more but 30 μm or less.
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公开(公告)号：US10483038B2
公开(公告)日：2019-11-19
申请号：US15908498
申请日：2018-02-28
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shohei Kitamura
Abstract: A multilayer ceramic capacitor includes: a multilayer structure in which each of dielectric layers and each of internal electrode layers are alternately stacked, a main component of the dielectric layers being ceramic, a main component of the internal electrode layers being a metal, wherein: at least one of the internal electrode layers includes grains of which a main component is ceramic; and an area ratio of a total area of the grains in a cross section of the at least one of the internal electrode layers in a stacking direction of the dielectric layers and the internal electrode layers is 10% or more.
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公开(公告)号：US09418792B2
公开(公告)日：2016-08-16
申请号：US14234954
申请日：2013-03-06
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Yukihiro Konishi , Yuichi Kasuya , Jun Nishikawa , Katsuya Taniguchi , Kotaro Mizuno , Yusuke Kowase , Shohei Kitamura
CPC classification number: H01G4/30 , H01G4/005 , H01G4/1218 , H01G4/1245
Abstract: A multilayer ceramic capacitor includes ceramic grains forming a dielectric layer of the multilayer ceramic capacitor, which ceramic grains contain a coarse ceramic grain SPr having a coarse grain size Dcoa that satisfies the condition of Tmin ≦Dcoa ≦Tmax where Tmax is the maximum thickness of the dielectric layer and Tmin is the minimum thickness of the dielectric layer. The multilayer ceramic capacitor is capable of inhibiting deterioration of capacitance and capacity-temperature characteristics even when the internal electrode layer is made thin.
Abstract translation: 多层陶瓷电容器包括形成多层陶瓷电容器的电介质层的陶瓷颗粒，该陶瓷颗粒含有具有粗晶粒度Dcoa的粗陶瓷颗粒SPr，其满足条件Tmin≤Dcoa≤Tmax，其中Tmax为最大厚度 电介质层和Tmin是介电层的最小厚度。 即使当内部电极层变薄时，多层陶瓷电容器也能够抑制电容和容量 - 温度特性的劣化。
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Patent Agency Ranking
公开(公告)号：US11610735B2
公开(公告)日：2023-03-21
申请号：US17177048
申请日：2021-02-16
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shohei Kitamura
IPC: H01G4/12 , H01G4/30 , H01G4/008 , C04B35/468 , H01G4/012
Abstract: A manufacturing method of a ceramic electronic device includes forming a multilayer structure by stacking a plurality of stack units, each of the stack units having a structure in which a pattern of metal conductive paste is provided on a dielectric green sheet including a dielectric material, the metal conductive paste including a metallic material of which a main component is Ni and a co-material of which a main component is barium titanate, the metal conductive paste of each of the stack units being alternately shifted, and firing the multilayer structure. FWHM of the metallic material)/(FWHM of the co-material) is 0.550 or less. The FWHM is of a (111) face evaluated by powder X-ray diffraction. An average particle diameter of the metallic material before the firing is 120 nm or less.
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公开(公告)号：US10770231B2
公开(公告)日：2020-09-08
申请号：US15836730
申请日：2017-12-08
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shohei Kitamura , Toru Makino , Kotaro Mizuno
IPC: C04B35/468 , C04B35/626 , H01G4/005 , H01G4/12 , H01G4/258 , B32B9/00 , H01G4/30 , H01G4/224
Abstract: In an embodiment, a multilayer ceramic capacitor 10 includes external electrodes 12 on both of first-direction ends of a capacitor body 11. Also, groups of metal grains 13 are provided on one third-direction face and another third-direction face of the capacitor body 11. Both of the first-direction ends of the groups of metal grains 13 provided on the other third-direction face of the capacitor body 11 are covered by second parts 12c of the respective external electrodes 12, while both of the first-direction ends of the groups of metal grains 13 provided on the one third-direction face of the capacitor body 11 are covered by first parts 12b of the respective external electrodes 12. The multilayer ceramic electronic component can offer excellent heat dissipation property.
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公开(公告)号：US10593474B2
公开(公告)日：2020-03-17
申请号：US15908519
申请日：2018-02-28
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shohei Kitamura
Abstract: A multilayer ceramic capacitor includes: a multilayer structure in which each of dielectric layers and each of internal electrode layers are alternately stacked, a main component of the dielectric layers being ceramic, a main component of the internal electrode layers being a metal, wherein: at least one of the internal electrode layers includes a grain of which a main component is ceramic; and the grain has a diameter of 40% or more of an average thickness of the at least one of the internal electrode layers.
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公开(公告)号：US10515764B2
公开(公告)日：2019-12-24
申请号：US16184740
申请日：2018-11-08
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Kotaro Mizuno , Yukihiro Konishi , Shohei Kitamura , Yoichi Kato , Yusuke Kowase , Toru Makino , Yoshinori Tanaka
Abstract: A multilayer ceramic capacitor includes an element body of roughly rectangular solid shape which is constituted by dielectric layers alternately stacked with internal electrode layers having different polarities and which has a pair of principle faces, a pair of end faces, and a pair of side faces, wherein the multilayer ceramic capacitor is such that: external electrodes are formed on the pair of end faces and one principle face of the element body; and on a cross section taken in parallel with one end face of the multilayer ceramic capacitor near the end face, the ratio of area A constituted by the internal electrode layers connected to the external electrode on this end face side and the dielectric layers present between the internal electrode layers, and area B covering the part of the section excluding the external electrodes, A/B, is 0.92 or more.
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公开(公告)号：US20140254063A1
公开(公告)日：2014-09-11
申请号：US14234954
申请日：2013-03-06
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Yukihiro Konishi , Yuichi Kasuya , Jun Nishikawa , Katsuya Taniguchi , Kotaro Mizuno , Yusuke Kowase , Shohei Kitamura
CPC classification number: H01G4/30 , H01G4/005 , H01G4/1218 , H01G4/1245
Abstract: A multilayer ceramic capacitor includes ceramic grains forming a dielectric layer of the multilayer ceramic capacitor, which ceramic grains contain a coarse ceramic grain SPr having a coarse grain size Dcoa that satisfies the condition of Tmin Dcoa Tmax where Tmax is the maximum thickness of the dielectric layer and Tmin is the minimum thickness of the dielectric layer. The multilayer ceramic capacitor is capable of inhibiting deterioration of capacitance and capacity-temperature characteristics even when the internal electrode layer is made thin.
Abstract translation: 多层陶瓷电容器包括形成多层陶瓷电容器的电介质层的陶瓷颗粒，该陶瓷颗粒含有具有粗晶粒度Dcoa的粗陶瓷颗粒SPr，其满足Tmin Dcoa Tmax的条件，其中Tmax是介电层的最大厚度 并且Tmin是介电层的最小厚度。 即使当内部电极层变薄时，多层陶瓷电容器也能够抑制电容和容量 - 温度特性的劣化。
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