Patents by Inventor Masaaki Togashi
Masaaki Togashi 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: 20040184202Abstract: A dielectric body 12 has internal conductor layers 14 arranged in it. At the far sides of the internal conductor layers 14 separated by ceramic layers 12A, internal conductor layers 16 are arranged. A length W of a side of the dielectric body 12 running along a stacking direction Y of the ceramic layers is made longer than the lengths L and T of any other two sides running along directions (X- and Y-directions) intersecting the side running along the stacking direction (Y-direction). The internal conductor layers 14 and 16 are formed with cut parts 18a and 18b, the internal conductor layers 14 are divided into channel parts 20A and 20B across the cut part 18a, and the internal conductor layers 16 are divided into channel parts 22A and 22B across the cut part 18b. These channel parts are connected through uncut ends 19, whereby the current flows in reverse directions.Type: ApplicationFiled: February 11, 2004Publication date: September 23, 2004Applicant: TDK CORPORATIONInventors: Masaaki Togashi, Shinya Onodera
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Publication number: 20040183147Abstract: Terminal electrodes 11 and 12 of a main body 2 of a multilayer capacitor 1 are connected to electrode connection parts 21A and 22A of a pair of external terminals 21 and 22 formed by a metal material. At the bottom part of the electrode connection part 21A, an external connection part 21B connected to the electrode connection part 21A is formed. At the bottom part of the electrode connection part 22A, an external connection part 22B connected to the electrode connection part 22A is formed. The widths of the terminal electrodes 11 and 12 and the widths of the external connection parts 21B and 22B are substantially the same, but the widths of the electrode connection parts 21A and 22A are formed narrower. Due to this, propagation of vibration can be suppressed and generation of noise reduced.Type: ApplicationFiled: March 17, 2004Publication date: September 23, 2004Applicant: TDK CORPORATIONInventors: Masaaki Togashi, Taisuke Ahiko, Akitoshi Yoshii, Atsushi Takeda
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Publication number: 20040179325Abstract: Internal dielectric layers isolated between them by a ceramic layer are arranged in a dielectric body, other internal conductor layers also isolated between them by a ceramic layer are arranged in the dielectric body by being isolated from the above internal conductor layers. Each of the all internal conductor layers is formed with a cut part, and a channel part is formed around the cut part, and the channel parts are arranged so that currents flow in mutually reverse directions between channel parts of internal conductor layers adjoining across a ceramic layer. Consequently, the equivalent serial inductance of the multilayer capacitor is largely reduced and fluctuations of a power source voltage of a CPU is made small.Type: ApplicationFiled: March 12, 2004Publication date: September 16, 2004Applicant: TDK CORPORATIONInventors: Masaaki Togashi, Ichirou Imai
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Patent number: 6781816Abstract: An electronic component includes: a dielectric element formed by layering dielectric layers; two types of internal conductors, which have a plurality of extended portions, respectively, that are extended toward a plurality of side surfaces of the dielectric element, respectively; two types of terminal electrodes, of which one of the two types of terminal electrodes is connected to a plurality of extended portions of one of the two types of internal conductors, and the other of the two types of terminal electrodes is connected to the remaining plurality of extended portions; and a pair of metallic terminals, of which one of the metallic terminals is connected to one of the two types of terminal electrodes, and the other of the metallic terminals is connected to the remaining terminal electrodes. Accordingly, ESR can be reduced while allowing for sufficient absorption of stress.Type: GrantFiled: February 26, 2003Date of Patent: August 24, 2004Assignee: TDK CorporationInventor: Masaaki Togashi
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Patent number: 6768630Abstract: A multilayer feedthrough capacitor having a first internal conductor arranged in a dielectric body, an intermediate internal conductor arranged in the dielectric body and stacked with the first internal conductor via a ceramic layer, a second internal conductor arranged in the dielectric body and stacked with the intermediate internal conductor via a ceramic layer, a first terminal electrode formed at an outside surface of the dielectric body and connected to the first internal conductor, a second terminal electrode formed at the outside surface of the dielectric body and connected to the second internal conductor, and an intermediate terminal electrode formed at the outside surface of the dielectric body and connected to the intermediate internal conductor. The intermediate terminal electrode is connected to the ground, while the first terminal electrode and the second terminal electrode are connected to paths for transmitting signals.Type: GrantFiled: June 3, 2003Date of Patent: July 27, 2004Assignee: TDK CorporationInventor: Masaaki Togashi
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Patent number: 6765781Abstract: A multilayer capacitor having a dielectric body formed by stacking dielectric sheets. At the outside of the dielectric body are arranged a pair of a first terminal electrode and a second terminal electrode insulated from each other and is arranged at least one first linkage electrode insulated from the first terminal electrode and the second terminal electrode. A first internal electrode is stacked inside the dielectric body via dielectric sheets and is connected to the first terminal electrode. A second internal electrode to be connected to the second terminal electrode is further stacked inside the dielectric body via dielectric sheets. A first polarity conductor to be connected to the first internal electrode through an external first linkage electrode is further stacked inside the dielectric body via dielectric sheets.Type: GrantFiled: December 2, 2002Date of Patent: July 20, 2004Assignee: TDK CorporationInventor: Masaaki Togashi
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Publication number: 20040066589Abstract: A multilayer capacitor (2) consisting of a capacitor body (1) and an interposer board (20) arranged underneath it, wherein a pair of land patterns are arranged on a front surface of the interposer board (20) for connection with a pair of terminal electrodes of the capacitor body (11) and (12), and a pair of external electrodes are arranged on a back surface of the interposer board (20) for connection with interconnect patterns (34) of a mounting board (33) by solder (35), the pair of land patterns and the pair of external electrodes being arranged on the interposer board (20) so that a direction of a line connecting the pair of land patterns and a direction of a line connecting the pair of external electrodes intersect perpendicularly.Type: ApplicationFiled: October 1, 2003Publication date: April 8, 2004Applicant: TDK CORPORATIONInventors: Masaaki Togashi, Taisuki Ahiko
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Publication number: 20030227738Abstract: A multilayer feedthrough capacitor having a first internal conductor arranged in a dielectric body, an intermediate internal conductor arranged in the dielectric body and stacked with the first internal conductor via a ceramic layer, a second internal conductor arranged in the dielectric body and stacked with the intermediate internal conductor via a ceramic layer, a first terminal electrode formed at an outside surface of the dielectric body and connected to the first internal conductor, a second terminal electrode formed at the outside surface of the dielectric body and connected to the second internal conductor, and an intermediate terminal electrode formed at the outside surface of the dielectric body and connected to the intermediate internal conductor. The intermediate terminal electrode is connected to the ground, while the first terminal electrode and the second terminal electrode are connected to paths for transmitting signals.Type: ApplicationFiled: June 3, 2003Publication date: December 11, 2003Applicant: TDK CorporationInventor: Masaaki Togashi
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Patent number: 6661640Abstract: A multilayer ceramic electronic device having a dielectric body formed by stacking a plurality of dielectric sheets. Two types of internal electrodes are alternately arranged inside the dielectric body via dielectric sheets. Each internal electrode is formed with a lead part led out straddling three side surfaces of the dielectric body. Two terminal electrodes are arranged at outer surfaces of the dielectric body. Each terminal electrode is arranged at the outer surface of the dielectric body straddling three side surfaces of the dielectric body, is connected to either of the two types of internal conductors, and is insulated from the other. In this multilayer ceramic electronic device, the ESL can be greatly reduced. This multilayer ceramic electronic device is used for example as a decoupling capacitor.Type: GrantFiled: July 30, 2002Date of Patent: December 9, 2003Assignee: TDK CorporationInventor: Masaaki Togashi
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Patent number: 6657848Abstract: A multilayer electronic device comprised of a capacitor body in which a plurality of internal electrodes are separately arranged in a plurality of blocks via ceramic layers. At least one lead is led out from each internal electrode. The terminal electrodes connected to each lead is arranged at the side faces of the capacitor body. The polarities of the voltages supplied to the nearby terminal electrodes in the same side face differ.Type: GrantFiled: July 16, 2002Date of Patent: December 2, 2003Assignee: TDK CorporationInventors: Masaaki Togashi, Taisuke Ahiko, Osamu Honjyo
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Publication number: 20030161089Abstract: An electronic component includes: a dielectric element formed by layering dielectric layers; two types of internal conductors, which have a plurality of extended portions, respectively, that are extended toward a plurality of side surfaces of the dielectric element, respectively; two types of terminal electrodes, of which one of the two types of terminal electrodes is connected to a plurality of extended portions of one of the two types of internal conductors, and the other of the two types of terminal electrodes is connected to the remaining plurality of extended portions; and a pair of metallic terminals, of which one of the metallic terminals is connected to one of the two types of terminal electrodes, and the other of the metallic terminals is connected to the remaining terminal electrodes. Accordingly, ESR can be reduced while allowing for sufficient absorption of stress.Type: ApplicationFiled: February 26, 2003Publication date: August 28, 2003Applicant: TDK CorporationInventor: Masaaki Togashi
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Publication number: 20030102502Abstract: A multilayer capacitor having a dielectric body formed by stacking dielectric sheets. At the outside of the dielectric body are arranged a pair of a first terminal electrode and a second terminal electrode insulated from each other and is arranged at least one first linkage electrode insulated from the first terminal electrode and the second terminal electrode. A first internal electrode is stacked inside the dielectric body via dielectric sheets and is connected to the first terminal electrode. A second internal electrode to be connected to the second terminal electrode is further stacked inside the dielectric body via dielectric sheets. A first polarity conductor to be connected to the first internal electrode through an external first linkage electrode is further stacked inside the dielectric body via dielectric sheets.Type: ApplicationFiled: December 2, 2002Publication date: June 5, 2003Applicant: TDK CORPORATIONInventor: Masaaki Togashi
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Publication number: 20030026059Abstract: A multilayer ceramic electronic device having a dielectric body formed by stacking a plurality of dielectric sheets. Two types of internal electrodes are alternately arranged inside the dielectric body via dielectric sheets. Each internal electrode is formed with a lead part led out straddling three side surfaces of the dielectric body. Two terminal electrodes are arranged at outer surfaces of the dielectric body. Each terminal electrode is arranged at the outer surface of the dielectric body straddling three side surfaces of the dielectric body, is connected to either of the two types of internal conductors, and is insulated from the other. In this multilayer ceramic electronic device, the ESL can be greatly reduced. This multilayer ceramic electronic device is used for example as a decoupling capacitor.Type: ApplicationFiled: July 30, 2002Publication date: February 6, 2003Applicant: TDK CorporationInventor: Masaaki Togashi
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Publication number: 20030011963Abstract: A multiterminal multilayer ceramic electronic device comprising a capacitor body formed by stacking dielectric layers, a plurality of internal electrodes separated by dielectric layers inside the capacitor body, each having at least one lead led out toward any side face of the capacitor body, and differing in position of arrangement of the lead with the nearby internal electrodes, and a plurality of terminal electrodes arranged at the outside surface of the capacitor body and connected to any of the plurality of internal electrodes through the leads. Between the internal electrodes not formed a lead and the terminal electrodes are formed a compensation layers. The compensation layers have approximately the same thickness as that of the internal electrodes, being not connected to at least one of the internal electrodes and the terminal electrodes, and separated from each other on an identical plane.Type: ApplicationFiled: July 10, 2002Publication date: January 16, 2003Applicant: TDK CORPORATIONInventors: Taisuke Ahiko, Sunao Masuda, Masaaki Togashi
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Publication number: 20020171997Abstract: A multilayer electronic device comprised of a capacitor body in which a plurality of internal electrodes are separately arranged in a plurality of blocks via ceramic layers. At least one lead is led out from each internal electrode. The terminal electrodes connected to each lead is arranged at the side faces of the capacitor body. The polarities of the voltages supplied to the nearby terminal electrodes in the same side face differ.Type: ApplicationFiled: July 16, 2002Publication date: November 21, 2002Applicant: TDK CORPORATIONInventors: Masaaki Togashi, Taisuke Ahiko, Osamu Honjyo
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Patent number: 6452781Abstract: The multilayer electronic device comprises a dielectric body formed by stacking dielectric layers. Flat first internal electrodes and flat second internal electrodes insulated via dielectric layers and arranged facing to the first internal electrodes are alternately stacked. First through-hole electrodes are connected to the first internal electrodes by penetrating, penetrate the second internal electrodes without connecting thereto and extend crossing the internal electrodes. The second through-hole electrodes are connected to the second internal electrodes by penetrating, penetrate the first internal electrodes without connecting thereto and extend crossing the internal electrodes. The first terminal electrodes are arranged on the outer surface of the dielectric body and connected to the first through-hole electrodes.Type: GrantFiled: October 4, 2001Date of Patent: September 17, 2002Assignee: TDK CorporationInventors: Taisuke Ahiko, Masaaki Togashi, Sunao Masuda
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Patent number: 6441459Abstract: A multilayer electronic device comprised of a capacitor body in which a plurality of internal electrodes are separately arranged in a plurality of blocks via ceramic layers. At least one lead is led out from each internal electrode. The terminal electrodes connected to each lead is arranged at the side faces of the capacitor body. The polarities of the voltages supplied to the nearby terminal electrodes in the same side face differ.Type: GrantFiled: July 7, 2000Date of Patent: August 27, 2002Assignee: TDK CorporationInventors: Masaaki Togashi, Taisuke Ahiko, Osamu Honjyo
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Patent number: 6407906Abstract: A multiterminal multilayer ceramic capacitor having a capacitor body comprised of first internal electrodes and second internal electrodes alternately stacked via ceramic layers. Each first internal electrode has a first main portion positioned at the center of a first face of a ceramic layer and a plurality of first leads extending from the sides of the first main portion to the sides of the ceramic layer. Each second internal electrode has a second main portion which is opposite to the first main portion of the first internal electrode across the ceramic layer and which is arranged in a second face of the ceramic layer opposite to the first face to have the same shape as the first main portion and a plurality of leads extending to the sides of the ceramic layer from the sides of the second main portion at positions different from the first leads provided at the first internal electrodes.Type: GrantFiled: July 6, 2000Date of Patent: June 18, 2002Assignee: TDK CorporationInventors: Taisuke Ahiko, Masaaki Togashi
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Publication number: 20020041006Abstract: The multilayer electronic device comprises a dielectric body formed by stacking dielectric layers. Flat first internal electrodes and flat second internal electrodes insulated via dielectric layers and arranged facing to the first internal electrodes are alternately stacked. First through-hole electrodes are connected to the first internal electrodes by penetrating, penetrate the second internal electrodes without connecting thereto and extend crossing the internal electrodes. The second through-hole electrodes are connected to the second internal electrodes by penetrating, penetrate the first internal electrodes without connecting thereto and extend crossing the internal electrodes. The first terminal electrodes are arranged on the outer surface of the dielectric body and connected to the first through-hole electrodes.Type: ApplicationFiled: October 4, 2001Publication date: April 11, 2002Applicant: TDK CorporationInventors: Taisuke Ahiko, Masaaki Togashi, Sunao Masuda
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Patent number: 6292351Abstract: A multiterminal multilayer ceramic capacitor having a capacitor body comprised of first internal electrodes and second internal electrodes alternately stacked via rectangular ceramic layers so that the short sides of the ceramic layers register with the height direction of the capacitor body. First external terminals and/or second external terminals connected to the first internal electrodes and/or second internal electrodes are formed on a top face and bottom face of the capacitor body. The first external terminals and second external terminals are connected directly to different circuit patterns of the circuit board so as to enable three-dimensional mounting of the multilayer ceramic capacitor with circuit boards.Type: GrantFiled: July 6, 2000Date of Patent: September 18, 2001Assignee: TDK CorporationInventors: Taisuke Ahiko, Masaaki Togashi