Patents by Inventor Kentaro Morito
Kentaro Morito 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: 10069206Abstract: A variable capacitance device includes: capacitors coupled in series between first and second signal terminal electrodes, each of the capacitors having a dielectric layer, a lower electrode and an upper electrode, a permittivity of the dielectric layer changing according to a voltage applied to the dielectric layer, the lower and upper electrodes sandwiching the dielectric layer; resistance films coupled between the capacitors and a bias terminal electrode; a first insulating film that contacts the resistance films; and a second insulating film that covers the capacitors, the resistance films and the first insulating film, wherein: a thermal conductivity of the first insulating film is larger than that of the second insulating film; and at least one of the resistance films has a pair of connection patterns provided on both ends thereof and resistance patterns that are coupled in parallel between the connection patterns.Type: GrantFiled: March 15, 2017Date of Patent: September 4, 2018Assignee: TAIYO YUDEN CO., LTD.Inventors: Daiki Ishii, Kentaro Morito
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Patent number: 10044105Abstract: A variable capacitance device includes: (A) a first signal line that contains multiple first variable capacitance elements connected in series; (B) a second signal line that contains multiple second variable capacitance elements connected in series; (C) a first bias line used for applying a first direct-current voltage to each of the multiple first variable capacitance elements and multiple second variable capacitance elements; and (D) a second bias line used for applying a second direct-current voltage to each of the multiple first variable capacitance elements and multiple second variable capacitance elements. And, a part of at least one of the first bias line and second bias line is arranged so that it passes between two adjacent first variable capacitance elements among the multiple first variable capacitance elements.Type: GrantFiled: October 3, 2014Date of Patent: August 7, 2018Assignee: TAIYO YUDEN CO., LTD.Inventors: Kentaro Morito, Daiki Ishii, Masashi Natsume, Tomokazu Ikenaga
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Patent number: 10008999Abstract: A control device according to the present invention is provided with (A) a variable capacitance device including a variable capacitance element, and (B) a control unit configured to apply a control voltage with a first polarity to the variable capacitance device during a third period including a first period to perform communication using the variable capacitance device and a second period not to perform communication before the first period, and configured to apply a control voltage with a second polarity opposite to the first polarity to the variable capacitance device during a sixth period including a fourth period to perform communication and a fifth period not to perform communication before the fourth period.Type: GrantFiled: June 13, 2016Date of Patent: June 26, 2018Assignees: TAIYO YUDEN CO., LTD., DEXERIALS CORPORATIONInventors: Kentaro Morito, Masayoshi Kanno
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Publication number: 20180006377Abstract: A variable capacitance device includes: capacitors coupled in series between first and second signal terminal electrodes, each of the capacitors having a dielectric layer, a lower electrode and an upper electrode, a permittivity of the dielectric layer changing according to a voltage applied to the dielectric layer, the lower and upper electrodes sandwiching the dielectric layer; resistance films coupled between the capacitors and a bias terminal electrode; a first insulating film that contacts the resistance films; and a second insulating film that covers the capacitors, the resistance films and the first insulating film, wherein: a thermal conductivity of the first insulating film is larger than that of the second insulating film; and at least one of the resistance films has a pair of connection patterns provided on both ends thereof and resistance patterns that are coupled in parallel between the connection patterns.Type: ApplicationFiled: March 15, 2017Publication date: January 4, 2018Applicant: TAIYO YUDEN CO., LTD.Inventors: Daiki ISHII, Kentaro MORITO
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Patent number: 9730324Abstract: A variable capacitance device includes: a supporting substrate having a plurality of variable capacitance elements formed thereon, the plurality of variable capacitance elements being connected in series, wherein each of the plurality of variable capacitance elements has a separate lower electrode, or at least some of the plurality of variable capacitance elements share a lower electrode, thereby forming a plural set of the lower electrodes that serves as the lower electrodes of the respective variable capacitance elements, wherein the variable capacitance device further includes an insulating moisture-resistant film and a conductive adhesive film, and wherein the conductive adhesive film and the insulating moisture-resistant film have a gap in a plan view between at least some of regions where the plural set of the lower electrodes are respectively formed so as to avoid electrical leakage between said at least some of regions through the conductive adhesive film.Type: GrantFiled: August 24, 2015Date of Patent: August 8, 2017Assignee: TAIYO YUDEN CO., LTD.Inventors: Daiki Ishii, Kentaro Morito, Tomokazu Ikenaga
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Patent number: 9722013Abstract: A thin film electronic component includes: a substrate; a thin film electrode layer over the substrate; an inorganic insulation layer formed on the thin film electrode layer; an organic insulation layer formed on the inorganic insulation layer; and a lead-out electrode that electrically connects to the thin film electrode layer. The inorganic insulation layer has a through-hole formed therein, so as to expose a portion of the thin film electrode layer. The organic insulation layer has a through-hole formed therein, so as to expose the through-hole in the inorganic insulation layer. The lead-out electrode is formed in the through-hole in the inorganic insulation layer and the through-hole in the organic insulation layer. A shape of a borderline defining the through-hole at a top surface of the organic insulation layer in a plan view has chamfered corners.Type: GrantFiled: August 25, 2015Date of Patent: August 1, 2017Assignee: TAIYO YUDEN CO., LTD.Inventors: Kentaro Morito, Daiki Ishii
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Patent number: 9590677Abstract: A variable capacitance device includes: a first and second terminal for signals; a plural, even number of variable capacitance elements connected in-series between the first and second terminal; a third and fourth terminal for receiving a same voltage; a fifth and sixth terminal for grounding; a plurality of first resistors connected to either the third or fourth terminal on one end; and a plurality of second resistors connected to either the fifth or sixth terminal on one end. With respect to a series of successive nodes beginning with the first terminal and ending with the second terminal, respective other ends of a pair of the first resistors are connected to every other node, and respective other ends of a pair of the second resistors are connected to the remaining every other node, such that the pairs of first and second resistors are alternately connected to the series of successive nodes.Type: GrantFiled: November 13, 2015Date of Patent: March 7, 2017Assignee: TAIYO YUDEN CO., LTD.Inventors: Tomokazu Ikenaga, Daiki Ishii, Kentaro Morito
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Publication number: 20160294349Abstract: A control device according to the present invention is provided with (A) a variable capacitance device including a variable capacitance element, and (B) a control unit configured to apply a control voltage with a first polarity to the variable capacitance device during a third period including a first period to perform communication using the variable capacitance device and a second period not to perform communication before the first period, and configured to apply a control voltage with a second polarity opposite to the first polarity to the variable capacitance device during a sixth period including a fourth period to perform communication and a fifth period not to perform communication before the fourth period.Type: ApplicationFiled: June 13, 2016Publication date: October 6, 2016Inventors: Kentaro MORITO, Masayoshi KANNO
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Publication number: 20160254599Abstract: A variable capacitance device includes: (A) a first signal line that contains multiple first variable capacitance elements connected in series; (B) a second signal line that contains multiple second variable capacitance elements connected in series; (C) a first bias line used for applying a first direct-current voltage to each of the multiple first variable capacitance elements and multiple second variable capacitance elements; and (D) a second bias line used for applying a second direct-current voltage to each of the multiple first variable capacitance elements and multiple second variable capacitance elements. And, a part of at least one of the first bias line and second bias line is arranged so that it passes between two adjacent first variable capacitance elements among the multiple first variable capacitance elements.Type: ApplicationFiled: October 3, 2014Publication date: September 1, 2016Inventors: Kentaro MORITO, Daiki ISHII, Masashi NATSUME, Tomokazu IKENAGA
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Publication number: 20160142105Abstract: A variable capacitance device includes: a first and second terminal for signals; a plural, even number of variable capacitance elements connected in-series between the first and second terminal; a third and fourth terminal for receiving a same voltage; a fifth and sixth terminal for grounding; a plurality of first resistors connected to either the third or fourth terminal on one end; and a plurality of second resistors connected to either the fifth or sixth terminal on one end. With respect to a series of successive nodes beginning with the first terminal and ending with the second terminal, respective other ends of a pair of the first resistors are connected to every other node, and respective other ends of a pair of the second resistors are connected to the remaining every other node, such that the pairs of first and second resistors are alternately connected to the series of successive nodes.Type: ApplicationFiled: November 13, 2015Publication date: May 19, 2016Applicant: TAIYO YUDEN CO., LTD.Inventors: Tomokazu IKENAGA, Daiki ISHII, Kentaro MORITO
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Publication number: 20160064473Abstract: A thin film electronic component includes: a substrate; a thin film electrode layer over the substrate; an inorganic insulation layer formed on the thin film electrode layer; an organic insulation layer formed on the inorganic insulation layer; and a lead-out electrode that electrically connects to the thin film electrode layer. The inorganic insulation layer has a through-hole formed therein, so as to expose a portion of the thin film electrode layer. The organic insulation layer has a through-hole formed therein, so as to expose the through-hole in the inorganic insulation layer. The lead-out electrode is formed in the through-hole in the inorganic insulation layer and the through-hole in the organic insulation layer. A shape of a borderline defining the through-hole at a top surface of the organic insulation layer in a plan view has chamfered corners.Type: ApplicationFiled: August 25, 2015Publication date: March 3, 2016Applicant: TAIYO YUDEN CO., LTD.Inventors: Kentaro MORITO, Daiki ISHII
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Publication number: 20160064148Abstract: A variable capacitance device includes: a supporting substrate having a plurality of variable capacitance elements formed thereon, the plurality of variable capacitance elements being connected in series, wherein each of the plurality of variable capacitance elements has a separate lower electrode, or at least some of the plurality of variable capacitance elements share a lower electrode, thereby forming a plural set of the lower electrodes that serves as the lower electrodes of the respective variable capacitance elements, wherein the variable capacitance device further includes an insulating moisture-resistant film and a conductive adhesive film, and wherein the conductive adhesive film and the insulating moisture-resistant film have a gap in a plan view between at least some of regions where the plural set of the lower electrodes are respectively formed so as to avoid electrical leakage between said at least some of regions through the conductive adhesive film.Type: ApplicationFiled: August 24, 2015Publication date: March 3, 2016Applicant: TAIYO YUDEN CO., LTD.Inventors: Daiki ISHII, Kentaro MORITO, Tomokazu IKENAGA
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Patent number: 8520364Abstract: An object of the present invention is to provide a multi-layer ceramic capacitor that includes a laminated block 4 formed by laminating ceramic dielectric layers 2 and internal electrodes 3 alternately, a pair of cover layers 5 laminated on top and bottom of the laminated block, a ceramic body 6 formed on both side surfaces of the laminated block 4, and a pair of external electrodes 7 electrically connected to the internal electrodes 3 and that can effectively prevent an occurrence of a crack. In the multi-layer ceramic capacitor 1, a silicate crystal made of an oxide including Ba and Si or a silicate crystal made of an oxide including Ti and Si is formed in boundary portions between the laminated block 4 and the ceramic bodies 6.Type: GrantFiled: April 10, 2012Date of Patent: August 27, 2013Assignee: Taiyo Yuden Co., Ltd.Inventor: Kentaro Morito
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Publication number: 20130100579Abstract: An object of the present invention is to provide a multi-layer ceramic capacitor that includes a laminated block 4 formed by laminating ceramic dielectric layers 2 and internal electrodes 3 alternately, a pair of cover layers 5 laminated on top and bottom of the laminated block, a ceramic body 6 formed on both side surfaces of the laminated block 4, and a pair of external electrodes 7 electrically connected to the internal electrodes 3 and that can effectively prevent an occurrence of a crack. In the multi-layer ceramic capacitor 1, a silicate crystal made of an oxide including Ba and Si or a silicate crystal made of an oxide including Ti and Si is formed in boundary portions between the laminated block 4 and the ceramic bodies 6.Type: ApplicationFiled: April 10, 2012Publication date: April 25, 2013Applicant: TAIYO YUDEN CO., LTD.Inventor: Kentaro Morito
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Patent number: 6824898Abstract: A lattice strain(s) due to lattice mismatch can be effectively utilized and it is further designed for the reduction of leakage current and the improvement of fatigue characteristic. Substantially one layer of {X3}O corresponding to one atomic layer of {X3}O is inserted at suitable intervals while epitaxially growing perovskite oxides or {X1}{X2}O3 layers 12 on a substrate which is similar in crystallographic structure to a desired thin film. {X1} and {X3} are each Ca or the like, {X2} is Ti or the like and ┌O┘ is oxygen. While the {X3}O layer(s) 14 is introduced so as to divide the perovskite structure of the {X1}{X2}O3 layers 12, it is present in a condition exhibiting an extremely high structural matching with the perovskite structure thereby forming a layered perovskite structure.Type: GrantFiled: June 12, 2003Date of Patent: November 30, 2004Assignee: Taiyo Yuden Co., Ltd.Inventors: Toshimasa Suzuki, Yoshiki Iwazaki, Kentaro Morito, Shoichi Sekiguchi, Masayuki Fujimoto
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Publication number: 20030211741Abstract: A lattice strain(s) due to lattice mismatch can be effectively utilized and it is further designed for the reduction of leakage current and the improvement of fatigue characteristic.Type: ApplicationFiled: June 12, 2003Publication date: November 13, 2003Applicant: TAIYO YUDEN CO., LTD.Inventors: Toshimasa Suzuki, Yoshiki Iwazaki, Kentaro Morito, Shoichi Sekiguchi, Masayuki Fujimoto