Patents by Inventor Yasuyuki Inomata
Yasuyuki Inomata 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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Publication number: 20230352245Abstract: A multilayer ceramic electronic device includes a multilayer chip having a plurality of dielectric layers and a plurality of internal electrode layers, one end of each of the plurality of internal electrode layers being exposed from the multilayer chip, an external electrode that is provided on an end face of the multilayer chip and is electrically connected to the one end of at least some of the plurality of internal electrode layers and includes a glass component, the end face being an end of the multilayer chip in a direction in which the plurality of internal electrode layers extend. The external electrode includes a crystal contacting or extending into the glass component at an interface between the external electrode and the end face of the multilayer chip. The crystal includes an element that is the same as at least one of elements included in the plurality of dielectric layers.Type: ApplicationFiled: April 12, 2023Publication date: November 2, 2023Applicant: TAIYO YUDEN CO., LTD.Inventors: Yasuyuki INOMATA, Tetsuo SHIMURA, Masaki MOCHIGI
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Publication number: 20230298821Abstract: A ceramic electronic device includes a dielectric layer and an internal electrode layer that are alternately stacked. The dielectric layer contains ceria zirconia solid solution and (Cax1Bax2Sr1-x1-x2)(TiyZr1-y)O3 (0.6?x1?0.9, 0?x2?0.1, 0?y?0.1) as a main component. In the dielectric layer, a concentration of the ceria zirconia solid solution is 0.5 mol % or more and 5.0 mol % or less when (Cax1Bax2Sr1-x1-x2)(TiyZr1-y)O3 is 100 mol %.Type: ApplicationFiled: March 2, 2023Publication date: September 21, 2023Inventor: Yasuyuki INOMATA
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Publication number: 20230081197Abstract: A ceramic electronic device includes a multilayer structure in which a plurality of dielectric layers and a plurality of internal electrode layers are alternately stacked. Each of the plurality of dielectric layers includes ceramic grains of a main component thereof expressed by (Ba1?x?yCaxSry)(Ti1?zZrz)O3 (0<x?0.2, 0?y?0.1, 0?z?0.1). D3<D1<D2 is satisfied when an average grain diameter of the ceramic grains of the main component of the plurality of dielectric layers in a section in which each two internal electrode layers is D1, an average grain diameter of the ceramic grains of the main component of first dielectric layers which are located at different height positions from the internal electrode layers is D2, an average grain diameter of the ceramic grains of the main component of second dielectric layers which are located at same height positions of the internal electrode layers is D3.Type: ApplicationFiled: August 8, 2022Publication date: March 16, 2023Applicant: TAIYO YUDEN CO., LTD.Inventors: Yasuyuki INOMATA, Kazumichi HIROI
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Publication number: 20230046855Abstract: A ceramic electronic device includes a dielectric layer and an internal electrode layer that are alternately stacked, wherein the dielectric layer contains yttria-stabilized zirconia and (Cax1Bax2Sr1-x1-x2)(TiyZr1-y)O3 (0.6?x1?0.9, 0?x2?0.1, 0?y?0.1) as a main component, and wherein, in the dielectric layer, a concentration of the yttria-stabilized zirconia when a total amount of Ti and Zr is 100 mol % is 0.5 mol % or more and 5.0 mol % or less.Type: ApplicationFiled: July 13, 2022Publication date: February 16, 2023Inventor: Yasuyuki INOMATA
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Patent number: 11581143Abstract: A multilayer ceramic capacitor (10) has a laminate body (20) constituted by dielectric layers (17) and internal electrode layers (18) stacked alternately. The dielectric layers (17) contain (Ba(1-x-y)CaxSry)m(Ti(1-z)Zrz)O3, where 0.03?x?0.16, 0?y?0.02, 0<z?0.02, 0.99?m?1.02, as a primary component, and an R oxide (R is a rare earth element) by 1.0 to 4.0 mol in equivalent element, an Mg compound by 0.2 to 2.5 mol in equivalent element, an Mn compound by 0.1 to 1.0 mol in equivalent element, a Zr compound by 0.1 to 2.0 mol in equivalent element, a V compound by 0.05 to 0.3 mol in equivalent element, and an Si compound by 0.2 to 5.0 mol in equivalent element, per 100 mol of the primary component. The multilayer ceramic capacitor can offer excellent DC bias properties and ensure high reliability.Type: GrantFiled: June 29, 2020Date of Patent: February 14, 2023Assignee: TAIYO YUDEN CO., LTD.Inventors: Yasuyuki Inomata, Tomoya Hagiwara, Kazumi Kaneda
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Patent number: 11488783Abstract: A multilayer ceramic capacitor includes a laminated body in which dielectric layers and internal electrodes are laminated alternately. The dielectric layer includes a first phase that contains calcium strontium zirconate titanate as a main component thereof and a second phase that contains barium zirconate as a main component thereof. At a cross section of the dielectric layer, a line parallel to the direction in which the dielectric layers and the internal electrodes are laminated contacts the boundaries between the first phase and the second phase once or more on average, thereby the statistically averaged contact number N of such a line with the boundaries determined by a prescribed procedure being 1.0 or greater.Type: GrantFiled: June 25, 2020Date of Patent: November 1, 2022Assignee: TAIYO YUDEN CO., LTD.Inventors: Tetsuo Shimura, Yasuyuki Inomata
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Patent number: 11282641Abstract: A ceramic electronic device includes a multilayer structure in which each of dielectric layers and each of internal electrode layers are alternately stacked, wherein a main component of the dielectric layers is (Ba, Sr, Ca)(Zr, Ti)O3, wherein a Ba concentration and a Ca concentration have variation in at least one of crystal grains in the dielectric layers.Type: GrantFiled: September 29, 2020Date of Patent: March 22, 2022Assignee: TAIYO YUDEN CO., LTD.Inventors: Tetsuo Shimura, Tomoya Hagiwara, Yasuyuki Inomata
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Publication number: 20210118615Abstract: A ceramic electronic device includes a multilayer structure in which each of dielectric layers and each of internal electrode layers are alternately stacked, wherein a main component of the dielectric layers is (Ba, Sr, Ca)(Zr, Ti)O3, wherein a Ba concentration and a Ca concentration have variation in at least one of crystal grains in the dielectric layers.Type: ApplicationFiled: September 29, 2020Publication date: April 22, 2021Applicant: TAIYO YUDEN CO., LTD.Inventors: Tetsuo SHIMURA, Tomoya HAGIWARA, Yasuyuki INOMATA
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Patent number: 10903012Abstract: A ceramic capacitor includes a multilayer structure, wherein a main component of dielectric layers is ceramic expressed by a general formula AmBO3 (0.995?m?1.010), wherein the dielectric layers include a rare earth element Re as a first sub-component by 2.0 mol to 5.0 mol when converted into Re2O3/2, include Mg as a second sub-component by 1.0 mol to 3.0 mol when converted into MgO, include V as a third sub-component by 0.05 mol to 0.25 mol when converted into V2O5/2, include Si as a fourth sub-component by 0.5 mol to 5.0 mol when converted into SiO2, include an alkali earth metal element M as a fifth sub-component by 0.1 mol to 5.0 mol when converted into MCO3, on a presumption that an amount of the ceramic is 100 mol, wherein a ratio Si/V is 30 or less.Type: GrantFiled: January 17, 2019Date of Patent: January 26, 2021Assignee: TAIYO YUDEN CO., LTD.Inventors: Yasuyuki Inomata, Yousuke Nakada, Tetsuo Shimura
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Publication number: 20210020364Abstract: A multilayer ceramic capacitor (10) has a laminate body (20) constituted by dielectric layers (17) and internal electrode layers (18) stacked alternately. The dielectric layers (17) contain (Ba(1-x-y)CaxSry)m(Ti(1-z)Zrz)O3, where 0.03?x?0.16, 0?y?0.02, 0<z?0.02, 0.99?m?1.02, as a primary component, and an R oxide (R is a rare earth element) by 1.0 to 4.0 mol in equivalent element, an Mg compound by 0.2 to 2.5 mol in equivalent element, an Mn compound by 0.1 to 1.0 mol in equivalent element, a Zr compound by 0.1 to 2.0 mol in equivalent element, a V compound by 0.05 to 0.3 mol in equivalent element, and an Si compound by 0.2 to 5.0 mol in equivalent element, per 100 mol of the primary component. The multilayer ceramic capacitor can offer excellent DC bias properties and ensure high reliability.Type: ApplicationFiled: June 29, 2020Publication date: January 21, 2021Inventors: Yasuyuki INOMATA, Tomoya HAGIWARA, Kazumi KANEDA
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Publication number: 20200411249Abstract: A multilayer ceramic capacitor includes a laminated body in which dielectric layers and internal electrodes are laminated alternately. The dielectric layer includes a first phase that contains calcium strontium zirconate titanate as a main component thereof and a second phase that contains barium zirconate as a main component thereof. At a cross section of the dielectric layer, a line parallel to the direction in which the dielectric layers and the internal electrodes are laminated contacts the boundaries between the first phase and the second phase once or more on average, thereby the statistically averaged contact number N of such a line with the boundaries determined by a prescribed procedure being 1.0 or greater.Type: ApplicationFiled: June 25, 2020Publication date: December 31, 2020Applicant: TAIYO YUDEN CO., LTD.Inventors: Tetsuo Shimura, Yasuyuki Inomata
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Patent number: 10879002Abstract: A ceramic capacitor includes: a dielectric layer of which a main component is a ceramic grain, wherein one or more pores are formed inside of the ceramic grains; and wherein an area ratio of the one or more pores with respect to a cross section of the ceramic grain is 0.03% to 0.20%, in a cross section of the dielectric layer.Type: GrantFiled: November 21, 2018Date of Patent: December 29, 2020Assignee: TAIYO YUDEN CO., LTD.Inventor: Yasuyuki Inomata
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Patent number: 10854390Abstract: The present technology provides an electronic component with an interposer, including an electronic component and an interposer. An adhesive section is disposed in an opposing space between a main body of the electronic component and a substrate. When a direction in which first and second external electrodes of the electronic component face each other is a first direction, a direction orthogonal to the first direction is a second direction, and a direction in which the electronic component and the interposer face each other is a third direction, the adhesive section includes a plurality of unitary adhesive sections separated from each other, and the unitary adhesive sections are disposed in a two-dimensional array such that the number of unitary adhesive sections arrayed along the second direction is smaller on opposing sides in the first direction than at a center.Type: GrantFiled: March 18, 2019Date of Patent: December 1, 2020Assignee: Taiyo Yuden Co., Ltd.Inventors: Tetsuo Shimura, Yosuke Nakada, Yasuyuki Inomata
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Patent number: 10672559Abstract: A multilayer ceramic capacitor includes: a multilayer structure in which each of a plurality of ceramic dielectric layers and each of a plurality of internal electrode layers are alternately stacked, the plurality of internal electrode layers being alternately exposed to a first edge face and a second edge face of the multilayer structure, wherein 1.5?Db/Da?10.0 is satisfied in a side margin region that covers edge portions to which the plurality of internal electrode layers extend toward two side faces other than the first edge face and the second edge face, when Da is an average grain diameter of a main component ceramic within 20 ?m from an edge of the plurality of internal electrode layers in the side margin region and Db is an average grain diameter of a main component ceramic within 20 ?m from a surface layer of the side margin region.Type: GrantFiled: July 25, 2018Date of Patent: June 2, 2020Assignee: TAIYO YUDEN CO., LTD.Inventors: Yasuyuki Inomata, Yasuhisa Kono, Mina Amano
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Patent number: 10593478Abstract: A multilayer ceramic capacitor includes a multilayer structure wherein [t12×L1]/N?10, when a distance between a first edge that is an outermost edge of internal electrodes that is not connected to a first or second external electrode and a second edge that is an innermost edge of the internal electrodes that is not connected to the first or second external electrode is L1, each thickness of dielectric layers is t1, and a stack number of dielectric layers is N, wherein [t12×W1]/N?10, when a distance between a first edge that is positioned at outermost of the internal electrodes and a second edge that is positioned at innermost of the internal electrodes is W1, and wherein R is larger than W1, when a curvature radius of a corner of an edge of the internal electrodes is R.Type: GrantFiled: June 13, 2018Date of Patent: March 17, 2020Assignee: TAIYO YUDEN CO., LTD.Inventors: Yasuyuki Inomata, Masaki Mochigi
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Patent number: 10475581Abstract: A multilayer ceramic capacitor includes: a multilayer chip in which each of dielectric layers and each of internal electrode layers are alternately stacked and are alternately exposed to two edge faces thereof; and external electrodes formed on the two edge faces; wherein: the external electrodes have a structure in which a plated layer is formed on a ground layer whose main component is a metal or an alloy, a thermal expansion coefficient of the metal being larger than that of a main ceramic component of the dielectric layer, the ground layer including a ceramic additive; outermost layers of the multilayer chip are cover layers whose main component is a main component of the dielectric layer; and thermal expansion coefficients satisfy a relationship of, the main component of the ground layer>the main component of the cover layers>the ceramic additive.Type: GrantFiled: December 8, 2017Date of Patent: November 12, 2019Assignee: TAIYO YUDEN CO., LTD.Inventors: Kazumi Kaneda, Yasuyuki Inomata, Mikio Tahara
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Publication number: 20190287723Abstract: The present technology provides an electronic component with an interposer, including an electronic component and an interposer. An adhesive section is disposed in an opposing space between a main body of the electronic component and a substrate. When a direction in which first and second external electrodes of the electronic component face each other is a first direction, a direction orthogonal to the first direction is a second direction, and a direction in which the electronic component and the interposer face each other is a third direction, the adhesive section includes a plurality of unitary adhesive sections separated from each other, and the unitary adhesive sections are disposed in a two-dimensional array such that the number of unitary adhesive sections arrayed along the second direction is smaller on opposing sides in the first direction than at a center.Type: ApplicationFiled: March 18, 2019Publication date: September 19, 2019Inventors: TETSUO SHIMURA, YOSUKE NAKADA, YASUYUKI INOMATA
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Publication number: 20190228911Abstract: A ceramic capacitor includes a multilayer structure, wherein a main component of dielectric layers is ceramic expressed by a general formula AmBO3 (0.995?m?1.010), wherein the dielectric layers include a rare earth element Re as a first sub-component by 2.0 mol to 5.0 mol when converted into Re2O3/2, include Mg as a second sub-component by 1.0 mol to 3.0 mol when converted into MgO, include V as a third sub-component by 0.05 mol to 0.25 mol when converted into V2O5/2, include Si as a fourth sub-component by 0.5 mol to 5.0 mol when converted into SiO2, include an alkali earth metal element M as a fifth sub-component by 0.1 mol to 5.0 mol when converted into MCO3, on a presumption that an amount of the ceramic is 100 mol, wherein a ratio Si/V is 30 or less.Type: ApplicationFiled: January 17, 2019Publication date: July 25, 2019Inventors: Yasuyuki INOMATA, Yousuke NAKADA, Tetsuo SHIMURA
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Publication number: 20190172640Abstract: A ceramic capacitor includes: a dielectric layer of which a main component is a ceramic grain, wherein one or more pores are formed inside of the ceramic grains; and wherein an area ratio of the one or more pores with respect to a cross section of the ceramic grain is 0.03% to 0.20%, in a cross section of the dielectric layer.Type: ApplicationFiled: November 21, 2018Publication date: June 6, 2019Inventor: Yasuyuki INOMATA
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Publication number: 20190035554Abstract: A multilayer ceramic capacitor includes: a multilayer structure in which each of a plurality of ceramic dielectric layers and each of a plurality of internal electrode layers are alternately stacked, the plurality of internal electrode layers being alternately exposed to a first edge face and a second edge face of the multilayer structure, wherein 1.5?Db/Da?10.0 is satisfied in a side margin region that covers edge portions to which the plurality of internal electrode layers extend toward two side faces other than the first edge face and the second edge face, when Da is an average grain diameter of a main component ceramic within 20 ?m from an edge of the plurality of internal electrode layers in the side margin region and Db is an average grain diameter of a main component ceramic within 20 ?m from a surface layer of the side margin region.Type: ApplicationFiled: July 25, 2018Publication date: January 31, 2019Inventors: Yasuyuki INOMATA, Yasuhisa KONO, Mina AMANO