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).

  • Publication number: 20120326559
    Abstract: 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: Application
    Filed: September 10, 2012
    Publication date: December 27, 2012
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Mashiro Otsuka, Koichi Banno, Akihiro Shiota, Shoichiro Suzuki, Taisuke Kanzaki, Masanori Nakamura
  • Publication number: 20120326561
    Abstract: 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: Application
    Filed: September 5, 2012
    Publication date: December 27, 2012
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Akihiro Shiota, Koichi Banno, Masahiro Otsuka, Shoichiro Suzuki, Taisuke Kanzaki, Masanori Nakamura
  • Publication number: 20120075770
    Abstract: 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: Application
    Filed: September 6, 2011
    Publication date: March 29, 2012
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Koichi BANNO
  • Publication number: 20110075318
    Abstract: 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: Application
    Filed: September 23, 2010
    Publication date: March 31, 2011
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Shoichiro SUZUKI, Koichi BANNO, Masahiro OTSUKA, Masanori NAKAMURA, Seiichi JONO, Taisuke KANZAKI, Akihiro SHIOTA
  • Publication number: 20090244805
    Abstract: Provided is a dielectric ceramic in which, while achieving a dielectric constant ? of 500 or more, a breakdown voltage higher than 90 kV/mm can be obtained and which is suitable for constituting dielectric ceramic layers of a multilayer ceramic capacitor for medium-to-high voltage application. As the dielectric ceramic constituting dielectric ceramic layers of the multilayer ceramic capacitor, a dielectric ceramic including, as a main component, (Ba1-xCax)mTiO3 where 0.30?x?0.50, and 0.950?m?1.025 is used. Preferably, the dielectric ceramic further includes a rare-earth element in an amount of 1 to 14 parts by mole relative to 100 parts by mole of the main component, and further includes Mn, Mg, and Si, respectively, in amounts of 0.1 to 3.0 parts by mole, 0.5 to 5.0 parts by mole, and 1.0 to 5.0 parts by mole relative to 100 parts by mole of the main component.
    Type: Application
    Filed: June 15, 2009
    Publication date: October 1, 2009
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Koichi Banno, Tomomi Koga
  • Patent number: 7160827
    Abstract: A dielectric ceramic composition that includes a main component expressed as 100BamTiO3+xCuO+aROn+bMnO+cMgO (wherein coefficients 100, x, a, b, and c represent molar ratios; m represents the ratio of Ba to Ti (Ba/Ti); R represents at least one metal element selected from Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; and n represents a positive number required to maintain electroneutrality and is determined by the valence number of R), wherein m, x, a, b, and c meet the following relationships: 0.990?m?1.050; 0.1?x?5.0; 9.0?a?20.0; 0.5?b?3.5; and 0<c?4.0, and the dielectric ceramic composition contains 0.8 to 5.0 parts by weight of a sintering additive with respect to 100 parts by weight of the main component.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: January 9, 2007
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Koichi Banno
  • Publication number: 20060264317
    Abstract: A dielectric ceramic composition that includes a main component expressed as 100BamTiO3+xCuO+aROn+bMnO+cMgO (wherein coefficients 100, x, a, b, and c represent molar ratios; m represents the ratio of Ba to Ti (Ba/Ti); R represents at least one metal element selected from Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; and n represents a positive number required to maintain electroneutrality and is determined by the valence number of R), wherein m, x, a, b, and c meet the following relationships: 0.990?m?1.050; 0.1?x?5.0; 9.0?a?20.0; 0.5?b?3.5; and 0<c?4.0, and the dielectric ceramic composition contains 0.8 to 5.0 parts by weight of a sintering additive with respect to 100 parts by weight of the main component.
    Type: Application
    Filed: July 28, 2006
    Publication date: November 23, 2006
    Inventor: Koichi Banno
  • Patent number: 6967180
    Abstract: A dielectric ceramic composition contains 100 parts by weight of a primary component represented by a[(SrbCa1-b)TiO3]-(1?a)[Bi2O3.nTiO2] wherein a and b are moles and n is the molar ratio of TiO2 to Bi2O3; w parts by weight of MgTiO3 x parts by weight of SiO2; y parts by weight of MnOm (MnCO3 equivalent); and z parts by weight of LnOk, wherein m is 1 to 2; Ln is at least one of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, holmium and erbium; and k is in the range of 1.5 to 2 such that LnOk is electroneutral, wherein a, b, n, w, x, y and z satisfy the relationships 0.90?a?0.95, 0.90?b?0.95, 1.8?n?3.0, 5.0?w?10.0, 0.1?x?1.0, 0.1?y?0.3, and 1.0?z?5.0.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: November 22, 2005
    Assignee: Murata Manufacturing Co. Ltd.
    Inventor: Koichi Banno
  • Patent number: 6946418
    Abstract: A dielectric ceramic contains a primary constituent represented by general formula (1): a[(SrbCa1?b)TiO3]?(1?a)[Bi2O3.nTiO2] (wherein a and b indicate molar amounts, and n indicates a molar ratio of TiO2 to Bi2O3), and a secondary constituent represented by general formula (2): xMgTiO3+yMnOm+zLn2O3 (wherein x, y, and z indicate weight per 100 parts by weight of the primary constituent, m is 1 to 2, and Ln is at least one of La, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Ho, and Er), wherein a, b, n, x, y, and z satisfy the expressions 0.88?a?0.92, 0.30?b?0.50, 1.8?n?3.0, 1.0?x?3.0, 0.1?y?2.0, and 0<z?3.0. A ceramic electronic component including the dielectric ceramic is also disclosed.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: September 20, 2005
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Koichi Banno
  • Publication number: 20050020433
    Abstract: A dielectric ceramic composition contains 100 parts by weight of a primary component represented by a[(SrbCa1?b)TiO3]?(1?a)[Bi2O3·nTiO2] wherein a and b are moles and n is the molar ratio of TiO2 to Bi2O3; w parts by weight of MgTiO3 x parts by weight of SiO2; y parts by weight of MnOm (MnCO3 equivalent); and z parts by weight of LnOk, wherein m is 1 to 2; Ln is at least one of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, holmium and erbium; and k is in the range of 1.5 to 2 such that LnOk is electroneutral, wherein a, b, n, w, x, y and z satisfy the relationships 0.90?a?0.95, 0.90?b?0.95, 1.8?n?3.0, 5.0?w?10.0, 0.1?x?1.0, 0.1?y?0.3, and 1.0?z?5.0.
    Type: Application
    Filed: June 3, 2004
    Publication date: January 27, 2005
    Inventor: Koichi Banno
  • Publication number: 20040110626
    Abstract: A dielectric ceramic contains a primary constituent represented by general formula (1): a[(SrbCa1-b)TiO3]-(1-a)[Bi2O3.nTiO2] (wherein a and b indicate molar amounts, and n indicates a molar ratio of TiO2 to Bi2O3), and a secondary constituent represented by general formula (2): xMgTiO3+yMnOm+zLn2O3 (wherein x, y, and z indicate weight per 100 parts by weight of the primary constituent, m is 1 to 2, and Ln is at least one of La, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Ho, and Er), wherein a, b, n, x, y, and z satisfy the expressions 0.88≦a≦0.92, 0.30≦b≦0.50, 1.8≦n≦3.0, 1.0≦x≦3.0, 0.1≦y≦2.0, and 0<z≦3.0. A ceramic electronic component including the dielectric ceramic is also disclosed.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 10, 2004
    Inventor: Koichi Banno