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| Number | Title | Issue Date |
| 8445397 | Dielectric ceramic and laminated ceramic capacitor A laminated ceramic capacitor which exhibits excellent lifetime characteristics in a high temperature loading test uses a dielectric ceramic constituting the dielectric layers which contains (Ba1-xCax)TiO3 as its main constituent, an... | 05/21/2013 |
| 8426331 | Dielectric ceramic, and resonator using the same Provided is a dielectric ceramic containing yttrium, manganese, and aluminum, and having a composition formula expressed by αBaO.βNd2O3.γTiO2, wherein mole ratios α, β and γ satisfy 14≦α≦21, 4≦β≦21, and 65≦γ≦75, ... | 04/23/2013 |
| 8383536 | Dielectric ceramic and laminated ceramic capacitor A dielectric ceramic which is capable of achieving a laminated ceramic capacitor with high reliability, in particular, favorable lifetime characteristics in a load test, even when a dielectric ceramic layer is reduced in thickness contains one of (Ba,R)(Ti,Mn)O... | 02/26/2013 |
| 8318624 | Dielectric ceramic and laminated capacitor A dielectric ceramic containing a BaTiO3 based material as its main constituent, and, as accessory constituents, a rare-earth element R(R is at least one selected from Nd, Eu, Gd, Tb, Dy, Ho, Er, Yb, and Y), M (M is at least one selected from Mg, Mn, Ni, ... | 11/27/2012 |
| 8273675 | Ferroelectric ceramic material Provided is a ferroelectric ceramic material containing BaTiO3 as a main component which can control a Curie temperature in a wide range, has no phase transition in the vicinity of a room temperature, and exhibits excellent ferroelectric characteristics. ... | 09/25/2012 |
| 8183171 | Dielectric ceramic composition To provide a dielectric ceramic composition which is free from variation in breakdown voltage, and has excellent electric properties. The dielectric ceramic composition according the present invention includes: as a main component, a component represented by a compo... | 05/22/2012 |
| 8097552 | Dielectric ceramics and capacitor A dielectric ceramic and a capacitor comprising the dielectric ceramic are disclosed. The dielectric ceramic has a high dielectric constant that is stable over temperature, and has a small spontaneous polarization. The capacitor can reduce audible noise caused by an... | 01/17/2012 |
| 8097551 | Dielectric ceramic and capacitor The invention relates to a ceramic dielectric material and to capacitors including the ceramic dielectric material. The ceramic dielectric material of the invention exhibits a high relative dielectric constant and a stable temperature characteristic of the relative ... | 01/17/2012 |
| 8088703 | Dielectric composition and ceramic electronic component manufactured therefrom Provided are a dielectric composition and a ceramic electronic component including the same. The dielectric composition includes (a) barium titanate having a specific surface area of 2.5 m2/g to 6.0 m2/g; (b) a mixture containing at least one or more materials selec... | 01/03/2012 |
| 8076257 | High temperature ceramic dielectric composition and capacitors made from the composition A bismuth sodium titanate (Bi0.5Na0.5TiO3) base material is modified by the partial substitution of aliovalent A-site cations such as barium (as BaO) or strontium (as SrO), as well as certain b-site donor/acceptor dopants and sinteri... | 12/13/2011 |
| 8067325 | Semiconductor ceramic composition It is intended to provide a semiconductor ceramic composition containing no Pb, which is capable of shifting the Curie temperate to a positive direction as well as of controlling room temperature resistivity and having an excellent jump characteristic. Since the sem... | 11/29/2011 |
| 8053385 | Dielectric ceramic composition and electronic component The dielectric ceramic composition comprising a main component including a compound satisfying a compositional formula of (SrxBa1-x)mTiO3 (“x” in said compositional formula is 0.159≦“x”≦0.238, and “m” is 0.... | 11/08/2011 |
| 8008222 | Dielectric ceramic composition and electronic device The present invention relates to a dielectric ceramic composition comprising a main component expressed by a general formula: (Ba1-x-ySrxCay)m(Ti1-zZrz)O3, ... | 08/30/2011 |
| 7994084 | Dielectric composition and multilayer ceramic capacitor embedded low temperature co-fired ceramic substrate using the same Provided are a dielectric composition and a multi-layer ceramic capacitor embedded low temperature co-fired ceramic substrate using the same. The dielectric composition includes a main component, BaTiO3 of about 80 wt % or more, and an accessory component... | 08/09/2011 |
| 7968486 | Dielectric ceramics and capacitor A dielectric ceramic and a capacitor comprising the dielectric ceramic are disclosed. The dielectric ceramic has a high dielectric constant that is stable over temperature, and has a small spontaneous polarization. The capacitor can reduce audible noise caused by an... | 06/28/2011 |
| 7943542 | Dielectric ceramic composition and an electronic component A dielectric ceramic composition of the invention comprises a main component expressed in a compositional formula of (Ba1-x-yCaxSry)m(Ti1-zZrz)O3, a first subcomponent of at least one compo... | 05/17/2011 |
| 7825054 | Semiconductor porcelain composition The invention intends to provide, in BaTiO3 semiconductor porcelain composition, a semiconductor porcelain composition that, without using Pb, can shift the Curie temperature to a positive direction and can significantly reduce the resistivity at room tem... | 11/02/2010 |
| 7790645 | Dielectric ceramic composition and an electric device The present invention relates to a dielectric ceramic composition comprising BaTiO3, BaZrO3, and the oxide of R wherein, when A is the content of BaZrO3, and C is the content of the oxide R, with respect to 100 moles of BaTiO3 | 09/07/2010 |
| 7786036 | Dielectric porcelain composition, and method for manufacturing capacitor using the same A dielectric ceramic composition containing at least 0.15 to 2.5 mol of a Mg compound in terms of MgO, 0 to 1.6 mol of a Ba compound in terms of BaCO3, 0.1 to 3.0 mol of a Ln (Ln includes two or three kinds of elements selected from Er, Dy, and Ho with Er... | 08/31/2010 |
| 7718560 | Electronic device, dielectric ceramic composition and the production method A production method of a dielectric ceramic composition comprising a main component including a compound having a perovskite-type crystal structure expressed by a composition formula (Ba1-xCax) (Ti1-yZry)O3 (not... | 05/18/2010 |
| 7696118 | Dielectric ceramic composition, electronic device and the production method A production method of a dielectric ceramic composition comprising a main component including barium titanate expressed by a composition formula of BamTiO2+m, wherein “m” satisfies 0.990 | 04/13/2010 |
| 7678724 | Electronic device, dielectric ceramic composition and the production method A production method of a dielectric ceramic composition comprising a main component including at least one selected from BaTiO3, BaCaTiO3, BaTiZrO3 and BaCaTiZrO3, and a fourth subcomponent including rare earth oxide; comp... | 03/16/2010 |
| 7655588 | Dielectric porcelain composition and method for production thereof A dielectric porcelain composition here contains as main components BaO, Nd2O3, TiO2, MgO and SiO2 at the given ratios and as subordinate components ZnO, B2O3, CuO and an alkaline earth metal oxide RO... | 02/02/2010 |
| 7618910 | Dielectric ceramic composition production method A production method of a dielectric ceramic composition, comprising a main component comprised of barium titanate, a fourth subcomponent comprised of an oxide of R1 (note that R1 is at least one kind selected from a first element group composed of rare earth element... | 11/17/2009 |
| 7585802 | Method of producing a dielectric ceramic composition A dielectric ceramic composition comprised of at least dielectric particles having barium titanate as its main ingredient, wherein the ratio of dielectric particles having a surface diffusion structure comprised of a main ingredient phase comprised of the main ingre... | 09/08/2009 |
| 7550402 | Ceramic electronic device and the production method A ceramic electronic device including a dielectric layer, wherein the dielectric layer includes a main component expressed by a composition formula of Bam TiO2+m, wherein “m” satisfies 0.995≦m≦1.010 and a ratio of Ba and Ti satisfies 0.... | 06/23/2009 |
| 7528088 | Electronic device A multilayer ceramic capacitor 1 having dielectric layers 2 having barium titanate or barium calcium titanate as a main ingredient. When the dielectric layers are barium titanate, the ratio of the grains having a thickness of the crystal grain boundari... | 05/05/2009 |
| 7482299 | Dielectric ceramic composition and multi-layer ceramic capacitor The present invention provides a dielectric ceramic composition, which is, in addition to having superior resistance to reduction during firing, superior capacitance temperature characteristics after firing and superior dielectric characteristics, also demonstrates ... | 01/27/2009 |
| 7439203 | Electronic device, dielectric ceramic composition and the production method A dielectric ceramic composition comprising a main component including barium titanate and an oxide of Al, wherein the dielectric ceramic composition includes a plurality of dielectric particles, concentration of Al in each of the dielectric particles becomes lower ... | 10/21/2008 |
| 7431908 | Coated spherical tetragonal barium titanate particles and process for producing the same Spherical tetragonal barium titanate particles of the present invention have a perovskite crystal structure, an average particle diameter of 0.05 to 0.5 μm, a particle size distribution σg of not less than 0.70, and a ratio of Ba to Ti of 0.99:1 to 1.01:1. The sph... | 10/07/2008 |
| 7419927 | Ceramic electronic device and the production method A ceramic electronic device including a dielectric layer, wherein the dielectric layer includes a main component expressed by a composition formula of Bam TiO2+m, wherein “m” satisfies 0.995≦m≦1.010 and a ratio of Ba and Ti satisfies 0.... | 09/02/2008 |
| 7399724 | Electronic device, dielectric ceramic composition and production method of the same A production method of a dielectric ceramic composition using a reacted material obtained by making a main component including barium titanate react with a fourth subcomponent including an oxide of R (note that R is at least one selected from Y, La, Ce, Pr, Nd, Pm, ... | 07/15/2008 |
| 7396791 | Electronic device, dielectric ceramic composition and the production method A dielectric ceramic composition comprising a main component including Ba, Ca and Ti and having a perovskite crystal structure expressed by a general formula ABO3 and a fourth subcomponent including a compound of Zr; wherein a content of the fourth subcom... | 07/08/2008 |
| 7397649 | Dielectric ceramic and multilayer ceramic capacitor A dielectric ceramic includes a compound represented by the general formula: (Ba1-tCat)m(Ti1-u-xZruCux)O3 (where 0.96≦m≦1.02, 0.001≦x≦0.03, 0≦t≦0.1, and 0≦u≦0.06) as a prima... | 07/08/2008 |
| 7381672 | Dielectric ceramic material and multilayer ceramic capacitor A dielectric ceramic material comprising the composition: 100(Ba1-xCax)mTiO3+aMnO+bCuO+cSiO2+dMgO+eRO (wherein coefficients 100, a, b, c, d, and e each represent mols; m represents the molar ratio of (Ba1-x... | 06/03/2008 |
| 7369828 | Electronically tunable quad-band antennas for handset applications An electronically tunable quad-band antenna which includes a tunable high band antenna tuned by at least one tunable varactor associated therewith; the tunable high band antenna further includes a substrate, a patch element on said substrate, at least one voltage tu... | 05/06/2008 |
| 7358208 | Dielectric ceramic composition and electronic device A dielectric ceramic composition comprising a predetermined main component and a fifth subcomponent including an oxide of A (note that A is at least one king selected from a cation element group having an effective ionic radius of 0.065 nm to 0.085 nm at the time of... | 04/15/2008 |
| 7351676 | Dielectric porcelain composition, multilayer ceramic capacitor, and electronic component A dielectric ceramic composition of the present invention includes 100 parts by mole of BaTiO3, x1 parts by mole of MnO, x2 parts by mole of Cr2O3, x3 parts by mole of Y2O3 and/o... | 04/01/2008 |
| 7336476 | Dielectric ceramic composition for low temperature sintering and multilayer ceramic capacitor using the same The invention relates to a dielectric ceramic composition, which can be sintered at a low temperature as well as achieve a high dielectric constant with excellent thermal stability, and a multilayer ceramic capacitor using the same. The dielectric ceramic compositio... | 02/26/2008 |
| 7323428 | Ceramic electronic device and production method thereof A highly reliable ceramic electronic device having an excellent temperature characteristic of a capacitance and a low IR temperature dependency, comprising a dielectric layer: wherein the dielectric layer includes a main component expressed by a composition formula ... | 01/29/2008 |
