Patents by Inventor Koichi Banno
Koichi Banno 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: 20150332854Abstract: A laminated ceramic electronic component has a variety of superior mechanical properties and electrical properties, including a high degree of freedom in the design for ceramic materials, and can be manufactured at low cost and with a low percentage of defective products. The laminated ceramic electronic component includes a laminate including a plurality of stacked ceramic layers and a plurality of internal electrodes containing Al as a main constituent, the internal electrodes being arranged along specific interfaces between the ceramic layers, and external electrodes located on an outer surface of the laminate, wherein surface layer sections of the internal electrodes include an Al2O3 layer.Type: ApplicationFiled: July 30, 2015Publication date: November 19, 2015Inventors: Shoichiro SUZUKI, Koichi BANNO, Masahiro OTSUKA, Masanori NAKAMURA, Seiichi JONO, Taisuke KANZAKI, Akihiro SHIOTA
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Patent number: 9129745Abstract: A laminated ceramic electronic component has a variety of superior mechanical properties and electrical properties, including a high degree of freedom in the design for ceramic materials, and can be manufactured at low cost and with a low percentage of defective products. The laminated ceramic electronic component includes a laminate including a plurality of stacked ceramic layers and a plurality of internal electrodes containing Al as a main constituent, the internal electrodes being arranged along specific interfaces between the ceramic layers, and external electrodes located on an outer surface of the laminate, wherein surface layer sections of the internal electrodes include an Al2O3 layer.Type: GrantFiled: September 23, 2010Date of Patent: September 8, 2015Assignee: Murata Manufacturing Co., Ltd.Inventors: Shoichiro Suzuki, Koichi Banno, Masahiro Otsuka, Masanori Nakamura, Seiichi Jono, Taisuke Kanzaki, Akihiro Shiota
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Patent number: 9064638Abstract: A dielectric ceramic enabling low-temperature firing and exhibiting good dielectric characteristics, and a stack ceramic electronic component using the same are provided. The dielectric ceramic containing (Ba1-x-yCaxSry)m(Ti1-zZrz)O3 (1.005?m?1.2, 0?x+y?0.2, and 0?z?0.2) as a major component and an amount of Bi relative to 100 parts by mol of the major component which is 1.0 part by mol or more and 40 parts by mol or less.Type: GrantFiled: March 14, 2013Date of Patent: June 23, 2015Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shoichiro Suzuki, Masanori Nakamura, Koichi Banno, Taisuke Kanzaki, Akihiro Shiota, Masahiro Otsuka
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Patent number: 8941975Abstract: Provided is a laminated ceramic electronic component which has excellent mechanical characteristics, internal electrode corrosion resistance, high degree of freedom in ceramic material design, low cost, low defective rate, and various properties. The laminated ceramic electronic component includes: a laminate which has a plurality of laminated ceramic layers and Al/Si alloy-containing internal electrodes at a plurality of specific interface between ceramic layers; and an external electrode formed on the outer surface of the laminate, wherein the Al/Si ratio of the Al/Si alloy is 85/15 or more.Type: GrantFiled: September 11, 2012Date of Patent: January 27, 2015Assignee: Murata Manufacturing Co., Ltd.Inventors: Koichi Banno, Shoichiro Suzuki, Masanori Nakamura, Masahiro Otsuka, Taisuke Kanzaki, Akihiro Shiota
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Patent number: 8885320Abstract: Provided is a laminated ceramic electronic component which has excellent mechanical characteristics, internal electrode corrosion resistance, high degree of freedom in ceramic material design, low cost, low defective rate, and various properties. The laminated ceramic electronic component includes: a laminate which has a plurality of laminated ceramic layers and Al/Mn alloy internal electrodes at a plurality of specific interfaces between the ceramic layers and an external electrode formed on the outer surface of the laminate, wherein the Al/Mn ratio of the Al/Mn alloy is 80/20 or more.Type: GrantFiled: September 11, 2012Date of Patent: November 11, 2014Assignee: Murata Manufacturing Co., Ltd.Inventors: Shoichiro Suzuki, Koichi Banno, Masanori Nakamura, Masahiro Otsuka, Taisuke Kanzaki, Akihiro Shiota
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Patent number: 8885321Abstract: Provided is a laminated ceramic electronic component which has excellent mechanical characteristics, internal electrode corrosion resistance, high degree of freedom in ceramic material design, low cost, low defective rate, and various properties. The laminated ceramic electronic component includes a laminate which has a plurality of laminated ceramic layers and internal electrodes formed along at a plurality of specific interface between the ceramic layers and having an Al/Ti alloy as a component; and an external electrode formed on the outer surface of the laminate. The Al/Ti ratio of the Al/Ti alloy is 91/9 or more.Type: GrantFiled: September 6, 2012Date of Patent: November 11, 2014Assignee: Murata Manufacturing Co., Ltd.Inventors: Taisuke Kanzaki, Koichi Banno, Masahiro Otsuka, Shoichiro Suzuki, Akihiro Shiota, Masanori Nakamura
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Patent number: 8879236Abstract: Provided is a laminated ceramic electronic component having excellent mechanical characteristics, internal electrode corrosion resistance, high degree of freedom in ceramic material design, low cost, low defective rate, and various properties. The laminated ceramic electronic component includes: a laminate which has a plurality of laminated ceramic layers and internal electrodes at a plurality of specific interfaces between the ceramic layers and having an Al/Ni alloy as a component; and an external electrode formed on the outer surface of the laminate, wherein the Al/Ni ratio of the Al/Ni alloy is 85/15 or more.Type: GrantFiled: September 10, 2012Date of Patent: November 4, 2014Assignee: Murata Manufacturing Co., Ltd.Inventors: Masahiro Otsuka, Koichi Banno, Akihiro Shiota, Shoichiro Suzuki, Taisuke Kanzaki, Masanori Nakamura
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Patent number: 8841225Abstract: A dielectric ceramic that includes a sintered body of BaTiO3 based ceramic grains, in which the ceramic grains each include a shell part as a surface layer part and a core part inside the shell part. The ceramic grains contain, as accessory constituents, R (R, which is a rare-earth element, is at least one selected from the group consisting of Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, and Y) and M (M is at least one selected from the group consisting of Mg, Mn, Ni, Co, Fe, Cr, Cu, Al, Mo, W, and V). R and M are present in the shell part of the ceramic grain, and concentrations of R and M contained in the shell part are increased from a grain boundary toward the core part.Type: GrantFiled: October 2, 2012Date of Patent: September 23, 2014Assignee: Murata Manufacturing Co., Ltd.Inventors: Tomomi Koga, Koichi Banno
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Publication number: 20140175942Abstract: A multilayer ceramic electronic component achieves a high electrostatic capacitance and includes an Al inner electrode superior in smoothness and conductivity. The multilayer ceramic electronic component includes a multilayer body including a plurality of stacked ceramic layers and a plurality of inner electrodes arranged along certain interfaces between the ceramic layers and containing Al as a main component, and an outer electrode located on an outer surface of the multilayer body. A surface of the inner electrode is covered with a layer including a noble metal or Ti as a main component.Type: ApplicationFiled: December 11, 2013Publication date: June 26, 2014Applicant: Murata Manufacturing Co., Ltd.Inventors: Koichi BANNO, Shoichiro SUZUKI, Taisuke KANZAKI, Akihiro SHIOTA
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Patent number: 8748329Abstract: A dielectric ceramic composition that contains, as its main constituent, (Ba1-x-yCaxSry)(Ti1-z-wZrzHfw)O3 (in the formula, 0?x+y?0.2, 0?z+w?0.1), and contains CuO and Bi2O3, and the dielectric ceramic composition has a feature that the total content of the CuO and Bi2O3 is 10 parts by weight or more with respect to 100 parts by weight of the main constituent, and the molar ratio CuO/(CuO+Bi2O3) is 0.5 or less.Type: GrantFiled: December 14, 2012Date of Patent: June 10, 2014Assignee: Murata Manufacturing Co., Ltd.Inventors: Masanori Nakamura, Masahiro Otsuka, Shoichiro Suzuki, Koichi Banno, Taisuke Kanzaki, Akihiro Shiota
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Publication number: 20140022696Abstract: A laminate body includes a plurality of ceramic layers and capacitor conductors embedded in the laminate body so as to be opposed to each other via one of the ceramic layers. The capacitor conductors are made of an Al-based material, and the capacitor conductors include narrow portions, respectively, which function as fuse elements. The narrow portions have an average width smaller than an average width of portions of the capacitor conductors other than the narrow portions. As a result, the electronic component has an improved capability to protect its function as a capacitor when a short circuit occurs between capacitor conductors.Type: ApplicationFiled: September 23, 2013Publication date: January 23, 2014Applicant: Murata Manufacturing Co., Ltd.Inventors: Koichi BANNO, Shoichiro SUZUKI, Taisuke KANZAKI, Akihiro SHIOTA
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Publication number: 20140016243Abstract: Provided in a dielectric ceramic having flat capacitance characteristics and a high dielectric constant, and a multilayer ceramic electronic component (such as a multilayer ceramic capacitor) in which the dielectric ceramic is used. A multilayer ceramic capacitor includes a multilayer body having a plurality of dielectric ceramic layers and a plurality of internal electrodes, and external electrodes formed on the multilayer body. The composition of the multilayer body includes any of a bismuth layered compound containing Sr, Bi and Ti, a bismuth layered compound containing Sr, Bi and Nb, and a bismuth layered compound containing Ca, Bi and Ti as a primary ingredient, Bi and at least one of Cu, Ba, Zn and Li, and satisfies the conditions that if the Ti content is 400 molar parts or the Nb content is 200 molar parts, then (Bi content-Ti content) or (Bi content-Nb content) is equal to or greater than 1 molar part and less than 7.Type: ApplicationFiled: September 19, 2013Publication date: January 16, 2014Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Shoichiro Suzuki, Koichi Banno, Taisuke Kanzaki, Akihiro Shiota
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Publication number: 20130342958Abstract: A dielectric ceramic that can be sintered at a sufficiently low temperature and has a desired specific resistance at a high temperature, and a multilayer ceramic electronic component (a multilayer ceramic capacitor and the like) using the dielectric ceramic are provided. The multilayer ceramic capacitor includes a multilayer body having a plurality of laminated dielectric ceramic layers, and a plurality of internal electrodes at interfaces between the dielectric ceramic layers; and external electrodes 8 and 9 on outer surfaces of the multilayer body. The composition of the multilayer body includes a perovskite-type compound containing Ba and Ti (where a part of Ba may be substituted by Ca, and a part of Ti may be substituted by Zr) as a primary ingredient, and further includes M (where M is at least one of Cu, Zn, Li, K, and Na) and Bi. The total content of M and Bi is equal to or greater than 3 molar parts when the total content of Ti and Zr is 100 molar parts.Type: ApplicationFiled: August 27, 2013Publication date: December 26, 2013Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Shoichiro Suzuki, Koichi Banno, Akihiro Shiota, Masahiro Otsuka, Taisuke Kanzaki, Masanori Nakamura
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Patent number: 8552826Abstract: A laminated ceramic electronic component having excellent mechanical characteristics and internal electrode corrosion resistance, high degree of freedom in ceramic material design, low cost, and low defective rate includes a laminate having a plurality of laminated ceramic layers and a plurality of Al/Cu alloy-containing internal electrodes at specific interfaces between ceramic layers; where the Al/Cu ratio of the Al/Cu alloy is 80/20 or more.Type: GrantFiled: September 5, 2012Date of Patent: October 8, 2013Assignee: Murata Manufacturing Co., Ltd.Inventors: Masanori Nakamura, Masahiro Otsuka, Shoichiro Suzuki, Koichi Banno, Taisuke Kanzaki, Akihiro Shiota
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Patent number: 8531260Abstract: Provided is a laminated ceramic electronic component which has excellent mechanical characteristics, internal electrode corrosion resistance, high degree of ceramic material design freedom, low cost, low defective rate and various properties. It includes a laminate of a plurality of laminated ceramic layers and a plurality of internal electrodes at specific interfaces between ceramic layers. The internal electrodes contain an Al/Mg alloy in which the Al/Mg ratio is 65/35 or more.Type: GrantFiled: September 5, 2012Date of Patent: September 10, 2013Assignee: Murata Manufacturing Co., Ltd.Inventors: Akihiro Shiota, Koichi Banno, Masahiro Otsuka, Shoichiro Suzuki, Taisuke Kanzaki, Masanori Nakamura
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Publication number: 20130140946Abstract: Provided is a laminated ceramic electronic component which has excellent mechanical characteristics, internal electrode corrosion resistance, high degree of freedom in ceramic material design, low cost, low defective rate, and various properties. The laminated ceramic electronic component includes: a laminate which has a plurality of laminated ceramic layers and Al/Si alloy-containing internal electrodes at a plurality of specific interface between ceramic layers; and an external electrode formed on the outer surface of the laminate, wherein the Al/Si ratio of the Al/Si alloy is 85/15 or more.Type: ApplicationFiled: September 11, 2012Publication date: June 6, 2013Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Koichi Banno, Shoichiro Suzuki, Masanori Nakamura, Masahiro Otsuka, Taisuke Kanzaki, Akihiro Shiota
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Patent number: 8445396Abstract: A laminated ceramic capacitor suitable for intermediate to high voltage applications uses a dielectric ceramic represented by {100(BaTiO3+aBaZrO3)+bR+cMg+dMn+eSi} where R is a rare earth element; 0?a?0.2, 8.0?b?12.0, 1.0?c?10.0, 0.1?d?3.0, and 1.0?e?10.0, and includes first grains of 0.7 ?m or more in grain size and an average first grain size (Aave) and area ratio of the ceramic (SA), and second grains of 0.6 ?m or less in grain size and an average second grain size (Bave) and area ratio (SB), 0.8 ?m?Aave?2.0 ?m, 0.1 ?m?Bave?0.5 ?m, Aave/Bave?3.0, 0.3?SA?0.9, 0.1?SB?0.7, and 0.8?SA+SB?1.0.Type: GrantFiled: September 6, 2011Date of Patent: May 21, 2013Assignee: Murata Manufacturing Co., Ltd.Inventor: Koichi Banno
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Publication number: 20130002092Abstract: Provided is a laminated ceramic electronic component which has excellent mechanical characteristics, internal electrode corrosion resistance, high degree of freedom in ceramic material design, low cost, low defective rate, and various properties. The laminated ceramic electronic component includes: a laminate which has a plurality of laminated ceramic layers and Al/Mn alloy internal electrodes at a plurality of specific interfaces between the ceramic layers and an external electrode formed on the outer surface of the laminate, wherein the Al/Mn ratio of the Al/Mn alloy is 80/20 or more.Type: ApplicationFiled: September 11, 2012Publication date: January 3, 2013Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Shoichiro Suzuki, Koichi Banno, Masanori Nakamura, Masahiro Otsuka, Taisuke Kanzaki, Akihiro Shiota
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Publication number: 20120326558Abstract: A laminated ceramic electronic component having excellent mechanical characteristics and internal electrode corrosion resistance, high degree of freedom in ceramic material design, low cost, and low defective rate includes a laminate having a plurality of laminated ceramic layers and a plurality of Al/Cu alloy-containing internal electrodes at specific interfaces between ceramic layers; where the Al/Cu ratio of the Al/Cu alloy is 80/20 or more.Type: ApplicationFiled: September 5, 2012Publication date: December 27, 2012Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Masanori Nakamura, Masahiro Otsuka, Shoichiro Suzuki, Koichi Banno, Taisuke Kanzaki, Akihiro Shiota
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Publication number: 20120326562Abstract: Provided is a laminated ceramic electronic component which has excellent mechanical characteristics, internal electrode corrosion resistance, high degree of freedom in ceramic material design, low cost, low defective rate, and various properties. The laminated ceramic electronic component includes a laminate which has a plurality of laminated ceramic layers and internal electrodes formed along at a plurality of specific interface between the ceramic layers and having an Al/Ti alloy as a component; and an external electrode formed on the outer surface of the laminate. The Al/Ti ratio of the Al/Ti alloy is 91/9 or more.Type: ApplicationFiled: September 6, 2012Publication date: December 27, 2012Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Taisuke Kanzaki, Koichi Banno, Masahiro Otsuka, Shoichiro Suzuki, Akihiro Shiota, Masanori Nakamura