Patents by Inventor Shogo Murosawa
Shogo Murosawa 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: 11373807Abstract: An electronic component device includes: an electronic component having: a base body having a pair of end surfaces facing each other and four side surfaces connecting the pair of end surfaces; and a pair of outer electrodes disposed on respective sides of the pair of end surfaces; metal terminals respectively electrically connected to the pair of outer electrodes; and joint portions joining and electrically connecting the outer electrodes to the metal terminals respectively, wherein the electronic component has a metal portion disposed on at least one surface of the four side surfaces, and the metal portion has a baked metal layer.Type: GrantFiled: September 20, 2018Date of Patent: June 28, 2022Assignee: TDK CORPORATIONInventors: Keiichi Takizawa, Naoto Imaizumi, Shogo Murosawa, Takeru Yoshida
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Patent number: 10847314Abstract: A multilayer capacitor includes an element assembly, a first external electrode, a second external electrode, and a plurality of internal electrodes which are disposed at the inside of the element assembly. The plurality of internal electrodes include a first internal electrode that is electrically connected to the first external electrode, a second internal electrode that is electrically connected to the second external electrode, and a plurality of third internal electrodes. The plurality of third internal electrodes are electrically connected to each other by a first connection conductor and a second connection conductor, a first capacitance portion is constituted by the first internal electrode and the third internal electrodes, a second capacitance portion is constituted by the second internal electrode and the third internal electrodes, and the first capacitance portion and the second capacitance portion are electrically connected in series.Type: GrantFiled: January 19, 2018Date of Patent: November 24, 2020Assignee: TDK CORPORATIONInventors: Takeru Yoshida, Takuya Imaeda, Shogo Murosawa, Hideki Kamo, Naoto Imaizumi, Keiichi Takizawa
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Patent number: 10804032Abstract: A multilayer capacitor includes an element assembly, a first external electrode, a second external electrode, and a plurality of internal electrodes which are disposed at the inside of the element assembly. The plurality of internal electrodes include a first internal electrode that is electrically connected to the first external electrode, a second internal electrode that is electrically connected to the second external electrode, and a plurality of third internal electrodes. The plurality of third internal electrodes are electrically connected to each other by a first connection conductor and a second connection conductor, a first capacitance portion is constituted by the first internal electrode and the third internal electrodes, a second capacitance portion is constituted by the second internal electrode and the third internal electrodes, and the first capacitance portion and the second capacitance portion are electrically connected in series.Type: GrantFiled: January 19, 2018Date of Patent: October 13, 2020Assignee: TDK CORPORATIONInventors: Takeru Yoshida, Takuya Imaeda, Shogo Murosawa, Hideki Kamo, Naoto Imaizumi, Keiichi Takizawa
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Patent number: 10726992Abstract: A multilayer ceramic electronic device comprising: a ceramic element body, in which a plurality of dielectric layers and a plurality of internal electrode layers are alternately stacked, and at least a pair of external electrodes which are connected to the internal electrode layers on surfaces of the ceramic element body; a thickness of the dielectric layers is 0.4 ?m or less, a width (W0) of the ceramic element body along a width-direction is 0.59 mm or less, a gap (Wgap) between an outer face of the ceramic element body and an end of the internal electrode layers along width-direction of the ceramic element body is 0.010 to 0.025 mm, and a ratio (Wgap/W0) of the gap with respect to the width is 0.025 or more.Type: GrantFiled: October 1, 2019Date of Patent: July 28, 2020Assignee: TDK CORPORATIONInventors: Shogo Murosawa, Toshihiko Kaneko
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Patent number: 10636572Abstract: Provided is a multilayer ceramic electronic device which is capable of preventing decrease of the specific permittivity and of showing less drop of capacitance, even when the dielectric grains constituting the dielectric layers become smaller for thinning of the dielectric layers, wherein Dg/Di?1 is satisfied, in case that “Di” is an average grain size of the first dielectric grains constituting the dielectric layer in the capacitance region and “Dg” is an average grain size of the second dielectric grains in an exterior area.Type: GrantFiled: March 31, 2016Date of Patent: April 28, 2020Assignee: TDK CORPORATIONInventors: Toshihiko Kaneko, Shogo Murosawa
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Patent number: 10636568Abstract: A multilayer ceramic electronic device comprising: a ceramic element body, in which it plurality of dielectric layers and a plurality of internal electrode layers are alternately stacked, and at least a pair of external electrodes which are connected to the internal electrode layers on surfaces of the ceramic element body; a thickness of the dielectric layers is 0.4 ?m or less, a width (W0) of the ceramic element body along a width-direction is 0.59 mm or less, a gap (Wgap) between an outer face of the ceramic element body and an end of the internal electrode layers along width-direction of the ceramic element body is 0.010 to 0.025 mm, and a ratio (Wgap/W0) of the gap with respect to the width is 0.025 or more.Type: GrantFiled: April 29, 2019Date of Patent: April 28, 2020Assignee: TDK CORPORATIONInventors: Shogo Murosawa, Toshihiko Kaneko
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Patent number: 10622146Abstract: A multilayer capacitor includes an element assembly, a first external electrode, a second external electrode, and a plurality of internal electrodes which are disposed at the inside of the element assembly. The plurality of internal electrodes include a first internal electrode that is electrically connected to the first external electrode, a second internal electrode that is electrically connected to the second external electrode, and a plurality of third internal electrodes. The plurality of third internal electrodes are electrically connected to each other by a first connection conductor and a second connection conductor, a first capacitance portion is constituted by the first internal electrode and the third internal electrodes, a second capacitance portion is constituted by the second internal electrode and the third internal electrodes, and the first capacitance portion and the second capacitance portion are electrically connected in series.Type: GrantFiled: January 23, 2019Date of Patent: April 14, 2020Assignee: TDK CORPORATIONInventors: Takeru Yoshida, Takuya Imaeda, Shogo Murosawa, Hideki Kamo, Naoto Imaizumi, Keiichi Takizawa
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Publication number: 20200035414Abstract: A multilayer ceramic electronic device comprising: a ceramic element body, in which a plurality of dielectric layers and a plurality of internal electrode layers are alternately stacked, and at least a pair of external electrodes which are connected to the internal electrode layers on surfaces of the ceramic element body; a thickness of the dielectric layers is 0.4 ?m or less, a width (W0) of the ceramic element body along a width-direction is 0.59 mm or less, a gap (Wgap) between an outer face of the ceramic element body and an end of the internal electrode layers along width-direction of the ceramic element body is 0.010 to 0.025 mm, and a ratio (Wgap/W0) of the gap with respect to the width is 0.025 or more.Type: ApplicationFiled: October 1, 2019Publication date: January 30, 2020Inventors: Shogo MUROSAWA, Toshihiko KANEKO
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Patent number: 10546694Abstract: A multilayer capacitor includes an element, a first external electrode, a second external electrode, and a plurality of internal electrodes. The plurality of internal electrodes include first internal electrodes, second internal electrodes, and a plurality of third internal electrodes. The plurality of third internal electrodes are electrically connected by a connection conductor. First capacity parts are constituted of the first internal electrodes and the third internal electrodes, and second capacity parts are constituted of the second internal electrodes and the third internal electrodes. The first capacity part and the second capacity part are electrically connected in series, and the connection conductor is disposed on at least one of the three lateral surfaces other than the lateral surface that is a mounting surface, among the four lateral surfaces.Type: GrantFiled: September 5, 2018Date of Patent: January 28, 2020Assignee: TDK CORPORATIONInventors: Takeru Yoshida, Hideki Kamo, Naoto Imaizumi, Keiichi Takizawa, Takuya Imaeda, Shogo Murosawa
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Publication number: 20190259536Abstract: A multilayer ceramic electronic device comprising: a ceramic element body, in which it plurality of dielectric layers and a plurality of internal electrode layers are alternately stacked, and at least a pair of external electrodes which are connected to the internal electrode layers on surfaces of the ceramic element body: a thickness of the dielectric layers is 0.4 ?m or less, a width (W0) of the ceramic element body along a width-direction is 0.59 mm or less, a gap (Wgap) between an outer face of the ceramic element body and an end of the internal electrode layers along width-direction of the ceramic element body is 0.010 to 0.025 mm, and a ratio (Wgap/W0) of the gap with respect to the width is 0.025 or more.Type: ApplicationFiled: April 29, 2019Publication date: August 22, 2019Inventors: Shogo MUROSAWA, Toshihiko KANEKO
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Publication number: 20190189344Abstract: A multilayer capacitor includes an element assembly, a first external electrode, a second external electrode, and a plurality of internal electrodes which are disposed at the inside of the element assembly. The plurality of internal electrodes include a first internal electrode that is electrically connected to the first external electrode, a second internal electrode that is electrically connected to the second external electrode, and a plurality of third internal electrodes. The plurality of third internal electrodes are electrically connected to each other by a first connection conductor and a second connection conductor, a first capacitance portion is constituted by the first internal electrode and the third internal electrodes, a second capacitance portion is constituted by the second internal electrode and the third internal electrodes, and the first capacitance portion and the second capacitance portion are electrically connected in series.Type: ApplicationFiled: January 23, 2019Publication date: June 20, 2019Applicant: TDK CORPORATIONInventors: Takeru YOSHIDA, Takuya IMAEDA, Shogo MUROSAWA, Hideki KAMO, Naoto IMAIZUMI, Keiichi TAKIZAWA
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Patent number: 10325721Abstract: A multilayer ceramic electronic device comprising: a ceramic element body, in which a plurality of dielectric layers and a plurality of internal electrode layers are alternately stacked, and at least a pair of external electrodes which are connected to the internal electrode layers on surfaces of the ceramic element body; a thickness of the dielectric layers is 0.4 ?m or less, a width (W0) of the ceramic element body along a width-direction is 0.59 mm or less, a gap (Wgap) between an outer face of the ceramic element body and an end of the internal electrode layers along width-direction of the ceramic element body is 0.010 to 0.025 mm, and a ratio (Wgap/W0) of the gap with respect to the width is 0.025 or more.Type: GrantFiled: March 28, 2016Date of Patent: June 18, 2019Assignee: TDK CorporationInventors: Shogo Murosawa, Toshihiko Kaneko
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Publication number: 20190096580Abstract: An electronic component device includes: an electronic component having: a base body having a pair of end surfaces facing each other and four side surfaces connecting the pair of end surfaces; and a pair of outer electrodes disposed on respective sides of the pair of end surfaces; metal terminals respectively electrically connected to the pair of outer electrodes; and joint portions joining and electrically connecting the outer electrodes to the metal terminals respectively, wherein the electronic component has a metal portion disposed on at least one surface of the four side surfaces, and the metal portion has a baked metal layer.Type: ApplicationFiled: September 20, 2018Publication date: March 28, 2019Applicant: TDK CORPORATIONInventors: Keiichi TAKIZAWA, Naoto IMAIZUMI, Shogo MUROSAWA, Takeru YOSHIDA
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Publication number: 20190080846Abstract: A multilayer capacitor (1) includes an element (2), a first external electrode (3), a second external electrode (4), and a plurality of internal electrodes. The plurality of internal electrodes include first internal electrodes (12), second internal electrodes (14), and a plurality of third internal electrodes (16). The plurality of third internal electrodes (16) are electrically connected by a connection conductor (5). First capacity parts (C1) are constituted of the first internal electrodes (12) and the third internal electrodes (16), and second capacity parts (C2) are constituted of the second internal electrodes (12) and the third internal electrodes (16). The first capacity part (C1) and the second capacity part (C2) are electrically connected in series, and the connection conductor (5) is disposed on at least one of the three lateral surfaces other than the lateral surface that is a mounting surface, among the four lateral surfaces.Type: ApplicationFiled: September 5, 2018Publication date: March 14, 2019Applicant: TDK CORPORATIONInventors: Takeru YOSHIDA, Hideki KAMO, Naoto IMAIZUMI, Keiichi TAKIZAWA, Takuya IMAEDA, Shogo MUROSAWA
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Publication number: 20180226191Abstract: A multilayer capacitor includes an element assembly, a first external electrode, a second external electrode, and a plurality of internal electrodes which are disposed at the inside of the element assembly. The plurality of internal electrodes include a first internal electrode that is electrically connected to the first external electrode, a second internal electrode that is electrically connected to the second external electrode, and a plurality of third internal electrodes. The plurality of third internal electrodes are electrically connected to each other by a first connection conductor and a second connection conductor, a first capacitance portion is constituted by the first internal electrode and the third internal electrodes, a second capacitance portion is constituted by the second internal electrode and the third internal electrodes, and the first capacitance portion and the second capacitance portion are electrically connected in series.Type: ApplicationFiled: January 19, 2018Publication date: August 9, 2018Applicant: TDK CORPORATIONInventors: Takeru YOSHIDA, Takuya IMAEDA, Shogo MUROSAWA, Hideki KAMO, Naoto IMAIZUMI, Keiichi TAKIZAWA
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Publication number: 20160293333Abstract: Provided is a multilayer ceramic electronic device which is capable of preventing decrease of the specific permittivity and of showing less drop of capacitance, even when the dielectric grains constituting the dielectric layers become smaller for thinning of the dielectric layers, wherein Dg/Di?1 is satisfied, in case that “Di” is an average grain size of the first dielectric grains constituting the dielectric layer in the capacitance region and “Dg” is an average grain size of the second dielectric grains in an exterior area.Type: ApplicationFiled: March 31, 2016Publication date: October 6, 2016Inventors: Toshihiko KANEKO, Shogo MUROSAWA
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Publication number: 20160284473Abstract: A multilayer ceramic electronic device comprising: a ceramic element body, in which a plurality of dielectric layers and a plurality of internal electrode layers are alternately stacked, and at least a pair of external electrodes which are connected to the internal electrode layers on surfaces of the ceramic element body; a thickness of the dielectric layers is 0.4 ?m or less, a width (W0) of the ceramic element body along a width-direction is 0.59 mm or less, a gap (Wgap) between an outer face of the ceramic element body and an end of the internal electrode layers along width-direction of the ceramic element body is 0.010 to 0.025 mm, and a ratio (Wgap/W0) of the gap with respect to the width is 0.025 or more.Type: ApplicationFiled: March 28, 2016Publication date: September 29, 2016Inventors: Shogo MUROSAWA, Toshihiko KANEKO
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Patent number: 8582277Abstract: A multilayer ceramic electronic component comprising an element body in which a dielectric layer and an internal electrode layer are stacked. The dielectric layer is constituted from a dielectric ceramic composition including; a compound having a perovskite structure expressed by a formula of ABO3 (A is at least one selected from Ba, Ca, and Sr; B is at least one selected from Ti, Zr, and Hf); an oxide of Mg; an oxide of rare earth elements including Sc and Y; and an oxide including Si. The dielectric ceramic composition comprises a plurality of dielectric particles and a grain boundary present in between the dielectric particles. In the grain boundary, when content ratios of Mg and Si are set to D(Mg) and D(Si) respectively, D(Mg) is 0.2 to 1.8 wt % in terms of MgO, and D(Si) is 0.4 to 8.0 wt % in terms of SiO2.Type: GrantFiled: November 21, 2011Date of Patent: November 12, 2013Assignee: TDK CorporationInventors: Hirobumi Tanaka, Makoto Endo, Satoko Ueda, Daisuke Ueda, Shogo Murosawa, Daisuke Yoshida, Kenta Ono, Minoru Ogasawara, Tatsuya Kikuchi
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Publication number: 20120162858Abstract: A multilayer ceramic electronic component comprising an element body in which a dielectric layer and an internal electrode layer are stacked. The dielectric layer is constituted from a dielectric ceramic composition including; a compound having a perovskite structure expressed by a formula of ABO3 (A is at least one selected from Ba, Ca, and Sr; B is at least one selected from Ti, Zr, and Hf); an oxide of Mg; an oxide of rare earth elements including Sc and Y; and an oxide including Si. The dielectric ceramic composition comprises a plurality of dielectric particles and a grain boundary present in between the dielectric particles. In the grain boundary, when content ratios of Mg and Si are set to D(Mg) and D(Si) respectively, D(Mg) is 0.2 to 1.8 wt % in terms of MgO, and D(Si) is 0.4 to 8.0 wt % in terms of SiO2.Type: ApplicationFiled: November 21, 2011Publication date: June 28, 2012Applicant: TDK CORPORATIONInventors: Hirobumi TANAKA, Makoto ENDO, Satoko UEDA, Daisuke UEDA, Shogo MUROSAWA, Daisuke YOSHIDA, Kenta ONO, Minoru OGASAWARA, Tatsuya KIKUCHI
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Patent number: 7517418Abstract: A release layer 22 is formed on a surface of a first supporting sheet 20. Next, an electrode layer 12a is formed on a surface of the release layer 22. When the electrode layer 12a is pressed against a surface of a green sheet 10a to bond the electrode layer 12a with the green sheet 10a, an adhesive layer 28 is formed by a transfer method on a surface of the electrode layer 12a or a surface of the green sheet 10a. It becomes possible to easily transfer a dry type electrode layer to the surface of the green sheet with high accuracy without breaking or deforming the green sheet, moreover, components of the adhesive layer do not soak in the electrode layer or green sheet. Also, the supporting sheet is extremely easily released, and a production cost of a multilayer ceramic capacitor is reduced.Type: GrantFiled: December 26, 2003Date of Patent: April 14, 2009Assignee: TDK CorporationInventors: Shogo Murosawa, Shigeki Satou, Takeshi Nomura