Patents by Inventor Katsuo SAKATSUME
Katsuo SAKATSUME has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11367575Abstract: A multi-layer ceramic capacitor includes: a ceramic body including ceramic layers laminated along one axial direction, first and second internal electrodes alternately disposed between the ceramic layers, first and second end surfaces to which the first and second internal electrodes are respectively drawn, a first end margin that forms an interval between the first end surface and the second internal electrodes, and a second end margin that forms an interval between the second end surface and the first internal electrodes; and first and second external electrodes that respectively cover the first and second end surfaces and are respectively connected to the first and second internal electrodes, the multi-layer ceramic capacitor satisfying the following relationship: SE?S/400+300, where S (?m) represents an area of the ceramic body and SE (?m) represents a total area of the first and second internal electrodes in cross sections of the first and second end margins.Type: GrantFiled: December 9, 2020Date of Patent: June 21, 2022Assignee: Taiyo Yuden Co., Ltd.Inventors: Jyouji Ariga, Katsuo Sakatsume, Masumi Ishii, Takeshi Nosaki, Norihiro Arai, Yasushi Inoue
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Publication number: 20210090813Abstract: A multi-layer ceramic capacitor includes: a ceramic body including ceramic layers laminated along one axial direction, first and second internal electrodes alternately disposed between the ceramic layers, first and second end surfaces to which the first and second internal electrodes are respectively drawn, a first end margin that forms an interval between the first end surface and the second internal electrodes, and a second end margin that forms an interval between the second end surface and the first internal electrodes; and first and second external electrodes that respectively cover the first and second end surfaces and are respectively connected to the first and second internal electrodes, the multi-layer ceramic capacitor satisfying the following relationship: SE?S/400+300, where S (?m) represents an area of the ceramic body and SE (?m) represents a total area of the first and second internal electrodes in cross sections of the first and second end margins.Type: ApplicationFiled: December 9, 2020Publication date: March 25, 2021Inventors: Jyouji ARIGA, Katsuo SAKATSUME, Masumi ISHII, Takeshi NOSAKI, Norihiro ARAI, Yasushi INOUE
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Patent number: 10892102Abstract: A multi-layer ceramic capacitor includes: a ceramic body including ceramic layers laminated along one axial direction, first and second internal electrodes alternately disposed between the ceramic layers, first and second end surfaces to which the first and second internal electrodes are respectively drawn, a first end margin that forms an interval between the first end surface and the second internal electrodes, and a second end margin that forms an interval between the second end surface and the first internal electrodes; and first and second external electrodes that respectively cover the first and second end surfaces and are respectively connected to the first and second internal electrodes, the multi-layer ceramic capacitor satisfying the following relationship: SE?S/400+300, where S (?m) represents an area of the ceramic body and SE (?m) represents a total area of the first and second internal electrodes in cross sections of the first and second end margins.Type: GrantFiled: November 30, 2018Date of Patent: January 12, 2021Assignee: Taiyo Yuden Co., Ltd.Inventors: Jyouji Ariga, Katsuo Sakatsume, Masumi Ishii, Takeshi Nosaki, Norihiro Arai, Yasushi Inoue
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Patent number: 10593475Abstract: A multi-layer ceramic capacitor includes: a ceramic body that includes a plurality of ceramic layers laminated in one axial direction and includes polycrystal having a Perovskite structure as a main phase, the Perovskite structure containing calcium and zirconium and being expressed by a general expression ABO3, the polycrystal containing silicon, boron, and lithium; first and second internal electrodes alternately disposed between the ceramic layers; a first external electrode provided on an outer surface of the ceramic body and connected to the first internal electrodes; and a second external electrode provided on the outer surface of the ceramic body and connected to the second internal electrodes, the multi-layer ceramic capacitor satisfying 0.2858V+0.4371?CLi?0.1306V+3.0391, where V (mm3) represents a volume of the ceramic body, and CLi (atm %) represents a concentration of the lithium when a concentration of a B-site element of the main phase of the polycrystal is 100 atm %.Type: GrantFiled: September 10, 2018Date of Patent: March 17, 2020Assignee: TAIYO YUDEN CO., LTD.Inventors: Norihiro Arai, Katsuo Sakatsume, Takeshi Nosaki, Masumi Ishii, Joji Ariga
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Patent number: 10522291Abstract: A multilayer ceramic capacitor includes: a ceramic multilayer structure having ceramic dielectric layers and internal electrode layers alternately stacked, the internal electrode layers being mainly composed of a transition metal other than an iron group, end edges of the internal electrode layers being alternately exposed to a first end face and a second end face; and a pair of external electrodes provided on the first end face and the second end face, wherein the external electrode includes a base conductive layer that includes glass of less than 7 weight % and is mainly composed of a transition metal other than an iron group or a noble metal, and a first plated film that covers the base conductive layer, has a thickness that is half of a thickness of the base conductive layer or more and is mainly composed of a transition metal other than an iron group.Type: GrantFiled: March 13, 2017Date of Patent: December 31, 2019Assignee: TAIYO YUDEN CO., LTD.Inventors: Katsuo Sakatsume, Masumi Ishii, Takeshi Nosaki, Norihiro Arai, Jyouji Ariga, Yasushi Inoue
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Patent number: 10381160Abstract: A multi-layer ceramic electronic component includes a multi-layer unit and an external electrode. The multi-layer unit includes an end surface oriented in a first direction, a side surface oriented in a second direction orthogonal to the first direction, a ridge connecting the end surface and the side surface, ceramic layers, and internal electrodes. The multi-layer ceramic electronic component satisfies the following relationships: A/L?0.0142*ln(L)+0.0256, A/T?0.0274*ln(T)+0.0719, B/L?0.0103*ln(L)+0.0281, and B/T?0.0189*ln(T)+0.0707, where A represents a thickness of the external electrode in the second direction at a position adjacent to the ridge on the side surface, B represents a thickness of the external electrode in the first direction at a position adjacent to the ridge on the end surface, L represents a dimension of the multi-layer ceramic electronic component in the first direction, and T represents a dimension of the multi-layer ceramic electronic component in the second direction.Type: GrantFiled: August 15, 2017Date of Patent: August 13, 2019Assignee: TAIYO YUDEN CO., LTD.Inventors: Katsuo Sakatsume, Masumi Ishii, Takeshi Nosaki, Norihiro Arai, Jyouji Ariga, Yasushi Inoue
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Publication number: 20190180940Abstract: A multi-layer ceramic capacitor includes: a ceramic body including ceramic layers laminated along one axial direction, first and second internal electrodes alternately disposed between the ceramic layers, first and second end surfaces to which the first and second internal electrodes are respectively drawn, a first end margin that forms an interval between the first end surface and the second internal electrodes, and a second end margin that forms an interval between the second end surface and the first internal electrodes; and first and second external electrodes that respectively cover the first and second end surfaces and are respectively connected to the first and second internal electrodes, the multi-layer ceramic capacitor satisfying the following relationship: SE?S/400+300, where S (?m) represents an area of the ceramic body and SE (?m) represents a total area of the first and second internal electrodes in cross sections of the first and second end margins.Type: ApplicationFiled: November 30, 2018Publication date: June 13, 2019Inventors: JYOUJI ARIGA, KATSUO SAKATSUME, MASUMI ISHII, TAKESHI NOSAKI, NORIHIRO ARAI, YASUSHI INOUE
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Publication number: 20190096578Abstract: A multi-layer ceramic capacitor includes: a ceramic body that includes a plurality of ceramic layers laminated in one axial direction and includes polycrystal having a Perovskite structure as a main phase, the Perovskite structure containing calcium and zirconium and being expressed by a general expression ABO3, the polycrystal containing silicon, boron, and lithium; first and second internal electrodes alternately disposed between the ceramic layers; a first external electrode provided on an outer surface of the ceramic body and connected to the first internal electrodes; and a second external electrode provided on the outer surface of the ceramic body and connected to the second internal electrodes, the multi-layer ceramic capacitor satisfying 0.2858V+0.4371?CLi?0.1306V+3.0391, where V (mm3) represents a volume of the ceramic body, and CLi (atm %) represents a concentration of the lithium when a concentration of a B-site element of the main phase of the polycrystal is 100 atm %.Type: ApplicationFiled: September 10, 2018Publication date: March 28, 2019Inventors: NORIHIRO ARAI, KATSUO SAKATSUME, TAKESHI NOSAKI, MASUMI ISHII, JOJI ARIGA
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Publication number: 20180053601Abstract: A multi-layer ceramic electronic component includes a multi-layer unit and an external electrode. The multi-layer unit includes an end surface oriented in a first direction, a side surface oriented in a second direction orthogonal to the first direction, a ridge connecting the end surface and the side surface, ceramic layers, and internal electrodes. The multi-layer ceramic electronic component satisfies the following relationships: A/L?0.0142*ln(L)+0.0256, A/T?0.0274*ln(T)+0.0719, B/L?0.0103*ln(L)+0.0281, and B/T?0.0189*ln(T)+0.0707, where A represents a thickness of the external electrode in the second direction at a position adjacent to the ridge on the side surface, B represents a thickness of the external electrode in the first direction at a position adjacent to the ridge on the end surface, L represents a dimension of the multi-layer ceramic electronic component in the first direction, and T represents a dimension of the multi-layer ceramic electronic component in the second direction.Type: ApplicationFiled: August 15, 2017Publication date: February 22, 2018Inventors: Katsuo Sakatsume, Masumi Ishii, Takeshi Nosaki, Norihiro Arai, Jyouji Ariga, Yasushi Inoue
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Publication number: 20170345569Abstract: A multilayer ceramic capacitor includes: a ceramic multilayer structure in which a ceramic dielectric layer and an internal electrode layer mainly composed of transition metal other than iron-group transition metal are alternately stacked, and a plurality of the internal electrode layers stacked are alternately exposed to a pair of end surfaces of the ceramic multilayer structure; a pair of external electrodes that are coupled to the internal electrode layer in the pair of end surfaces and are mainly composed of transition metal other than iron-group transition metal; and a conductor that is fixed to the ceramic multilayer structure, is located in a region other than a region in which the plurality of the internal electrode layers face each other, and is mainly composed of iron-group transition metal.Type: ApplicationFiled: March 13, 2017Publication date: November 30, 2017Inventors: Katsuo SAKATSUME, Masumi ISHII, Takeshi NOSAKI, Norihiro ARAI, Jyouji ARIGA
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Publication number: 20170345570Abstract: A multilayer ceramic capacitor includes: a ceramic multilayer structure having ceramic dielectric layers and internal electrode layers alternately stacked, the internal electrode layers being mainly composed of a transition metal other than an iron group, end edges of the internal electrode layers being alternately exposed to a first end face and a second end face; and a pair of external electrodes provided on the first end face and the second end face, wherein the external electrode includes a base conductive layer that includes glass of less than 7 weight % and is mainly composed of a transition metal other than an iron group or a noble metal, and a first plated film that covers the base conductive layer, has a thickness that is half of a thickness of the base conductive layer or more and is mainly composed of a transition metal other than an iron group.Type: ApplicationFiled: March 13, 2017Publication date: November 30, 2017Inventors: Katsuo SAKATSUME, Masumi ISHII, Takeshi NOSAKI, Norihiro ARAI, Jyouji ARIGA, Yasushi INOUE
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Publication number: 20170345568Abstract: A multilayer ceramic capacitor includes: a ceramic multilayer structure having ceramic dielectric layers and internal electrode layers alternately stacked, the internal electrode layers being mainly composed of a transition metal other than an iron group, end edges of the internal electrode layers being alternately exposed to a first end face and a second end face; and at least a pair of external electrodes that are provided on the first face and the second face of the ceramic multilayer structure, wherein the external electrode includes a base conductive layer including ceramic of 5 weight % or less and being mainly composed of a transition metal other than an iron group or a noble metal and a first plated film having a thickness that is half of a thickness of the base conductive layer or more and being mainly composed of a transition metal other than an iron group.Type: ApplicationFiled: March 13, 2017Publication date: November 30, 2017Inventors: Katsuo SAKATSUME, Masumi ISHII, Takeshi NOSAKI, Norihiro ARAI, Jyouji ARIGA, Yasushi INOUE