Entries |
Document | Title | Date |
20080302996 | PIEZOELECTRIC/ELECTROSTRICTIVE PORCELAIN COMPOSITION AND PIEZOELECTRIC/ELECTROSTRICTIVE ELEMENT - A (Li, Na, K)(Nb, Ta)O | 12-11-2008 |
20080308762 | PIEZOELECTRIC LAMINATE, SURFACE ACOUSTIC WAVE DEVICE, THIN-FILM PIEZOELECTRIC RESONATOR, AND PIEZOELECTRIC ACTUATOR - A piezoelectric laminate including a base and a first piezoelectric layer formed above the base and including potassium sodium niobate. The first piezoelectric layer is shown by a compositional formula (K | 12-18-2008 |
20090020726 | PIEZOELECTRIC CERAMIC COMPOSITION - Disclosed is a piezoelectric ceramic composition which is produced by adding two or more metal elements and has excellent piezoelectric properties. The piezoelectric composition comprises the main ingredient represented by the general formula: [Li | 01-22-2009 |
20090065732 | Composite powder with a high efficiency of releasing anions, and its attached substance and manufacturing method - A composite powder with a high efficiency of releasing anions, and its attached substance and manufacturing method. The composite powder is made by mixing tourmaline powder and carbon-series powder in an optimal ratio, and the composite powder is blended with an attached substance (such as polymer foaming materials or chemical fiber materials) to form a product, such that the synergy of the composite powder results in high piezoelectricity, thermoelectricity and related physical properties to achieve the multifunctional effects of releasing anions, removing odors and suppressing germs. | 03-12-2009 |
20090212254 | (Li, Na, K)(Nb, Ta, Sb)O3 BASED PIEZOELECTRIC MATERIAL AND MANUFACTURING METHOD THEREOF - The present inventive (Li, Na, K) (Nb, Ta, Sb) O | 08-27-2009 |
20090236556 | PIEZOELECTRIC/ELECTROSTRICTIVE CERAMIC COMPOSITION MANUFACTURING METHOD - A (Li, Na, K)(Nb, Ta)O | 09-24-2009 |
20090236557 | PIEZOELECTRIC/ELECTROSTRICTIVE CERAMIC COMPOSITION - A piezoelectric/electrostrictive ceramic composition is provided which exhibits high density and excellent crystallinity even in the case of firing under lower temperature conditions than in conventional cases, and which also exhibits excellent piezoelectric/electrostrictive properties. An ABO | 09-24-2009 |
20090289212 | PROCESS FOR PRODUCING POROUS FILMS AND FILM MATERIAL PRODUCED THEREFROM - A process for producing porous films ( | 11-26-2009 |
20100025618 | PIEZOELECTRIC MATERIAL - Provided is a piezoelectric material which includes a compound free of lead and alkali metal and has a good piezoelectric property. The piezoelectric material where tungsten bronze structure oxides being free of lead and alkali metal and represented by A | 02-04-2010 |
20100090154 | FILM DEPOSITING APPARATUS, A FILM DEPOSITING METHOD, A PIEZOELECTRIC FILM, AND A LIQUID EJECTING APPARATUS - A film depositing apparatus comprises: a process chamber; a gas supply source for supplying the process chamber with gases necessary for film deposition; an evacuating unit for evacuating the interior of the process chamber; a target holder placed within the process chamber for holding a target; a substrate holder for holding a deposition substrate within the process chamber in a face-to-face relation with the target holder; a power supply unit for supplying electric power between the target holder and the substrate holder to generate a plasma within the process chamber; and an anode provided between the target holder and the substrate holder so as to surround the outer periphery of the side of the substrate holder that faces the target holder, the anode comprising at least one plate member for capturing ions in the plasma generated within the process chamber. | 04-15-2010 |
20100230629 | PIEZOELECTRIC COMPOSITIONS - Piezoelectric compositions are provided wherein mechanical and piezoelectric properties can be separately modulated. Preferred compositions include resin blends that comprise: (a) a piezoelectrically active polymer and (b) a matrix polymer, methods of making, and use of such resin blends. Advantages of preferred resin blends of the invention can include high piezoelectricity, mechanical strength and flexibility, convenient fabrication process, and high sensitivity at high temperatures. | 09-16-2010 |
20110006244 | PIEZOELECTRIC/ELECTROSTRICTIVE CERAMICS SINTERED BODY - A piezoelectric/electrostrictive ceramic sintered body has a microstructure in which a matrix phase and an additional material phase having different compositions coexist and the additional material phase is dispersed in the matrix phase. A residual strain ratio of the additional material phase alone is larger than a residual strain ratio of the matrix phase alone. The matrix phase and the additional material phase have a composition in which a Mn compound containing Mn atoms of 0 parts by mol or more and 3 parts by mol or less and a Sr compound containing Sr atoms of 0 parts by mol or more and 1 part by mol or less are contained in a composite of 100 parts by mol represented by a general formula {Li | 01-13-2011 |
20110012051 | PIEZOELECTRIC/ELECTROSTRICTIVE CERAMIC COMPOSITION - To provide an alkaline-niobate-based piezoelectric/electrostrictive ceramic composition that has excellent electric field induced strain during application of high electric field. A piezoelectric/electrostrictive film is a sintered body of a piezoelectric/electrostrictive ceramic composition. The piezoelectric/electrostrictive ceramic composition is a piezoelectric/electrostrictive composition, in which a compound of at least one kind of element selected from the group consisting of Ba, Sr, Ca, La, Ce, Nd, Sm, Dy, Ho and Yb and a Mn compound are contained in a perovskite-type oxide containing Li, Na and K as A-site elements and Nb and Sb as B-site elements, where a ratio of a total number of atoms of the A-site elements to a total number of atoms of the B-site elements is more than one and the number of atoms of Sb to the total number of atoms of the B-site elements is 1 mol % or more and 10 mol % or less. | 01-20-2011 |
20110017937 | RELAXOR-PT FERROELECTRIC SINGLE CRYSTALS - A <110> domain engineered relaxor-PT single crystals having a dielectric loss of about 0.2%, a high electromechanical coupling factor greater than about 85%, and high mechanical quality factor greater than about 500 is disclosed. In one embodiment, the relaxor-PT material has the general formula, Pb(B | 01-27-2011 |
20110210281 | PIEZOELECTRIC/ELECTROSTRICTIVE CERAMICS SINTERED BODY - A piezoelectric/electrostrictive ceramic sintered body has a microstructure in which a matrix phase and an additional material phase having different compositions coexist and the additional material phase is dispersed in the matrix phase. A residual strain ratio of the additional material phase alone is larger than a residual strain ratio of the matrix phase alone. The matrix phase and the additional material phase have a composition in which a Mn compound containing Mn atoms of 0 parts by mole or more and 3 parts by mole or less and a Ba compound containing Ba atoms of 0 parts by mole or more and 1 part by mole or less are contained in a composite of 100 parts by mole represented by a general formula {Li | 09-01-2011 |
20110297870 | PIEZOELECTRIC MATERIAL AND PRODUCTION METHOD THEREFOR - Provided is an oriented piezoelectric material with satisfactory sintering property free of Pb that is a hazardous substance, and a water-soluble alkaline ion, and a production method therefor. To this end, provided is a compound, including a tungsten bronze structure metal oxide, in which: the tungsten bronze structure metal oxide contains at least metal elements of Ba, Bi, Ca, and Nb, the metal elements satisfying the following conditions in terms of molar ratio; and has a C-axis orientation. The compound shows Ba/Nb=a: 0.363 | 12-08-2011 |
20120091389 | PROCESS - A process for the preparation of a niobium compound of formula (I): | 04-19-2012 |
20120132846 | PIEZOELECTRIC POLYMER MATERIAL AND METHOD FOR PRODUCING SAME - The invention provides a piezoelectric polymer material comprising a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and optical activity, the piezoelectric polymer material having: crystallinity as obtained by a DSC method of from 20% to 80%; a transmission haze with respect to visible light of 50% or less; and a product of the crystallinity and a standardized molecular orientation MORc, which is measured with a microwave transmission-type molecular orientation meter at a reference thickness of 50 μm, of from 40 to 700. | 05-31-2012 |
20120193568 | ELECTROSTRICTIVE COMPOSITE AND METHOD FOR MAKING THE SAME - An electrostrictive composite includes a flexible polymer matrix and a plurality of carbon nanotubes dispersed in the flexible polymer matrix. The carbon nanotubes cooperatively form an electrically conductive network in the flexible polymer matrix. A plurality of bubbles are defined by the flexible polymer matrix. | 08-02-2012 |
20120267563 | PIEZOELECTRIC AND/OR PYROELECTRIC COMPOSITE SOLID MATERIAL, METHOD FOR OBTAINING SAME AND USE OF SUCH A MATERIAL - A piezoelectric and/or pyroelectric composite solid hybrid material, includes: a solid dielectric matrix, a filler of at least one inorganic piezoelectric and/or pyroelectric material, wherein the filler includes filiform nanoparticles distributed throughout the volume of the solid dielectric matrix with an amount by volume of less than 50%, and in that the main directions of elongation of the filiform nanoparticles of the inorganic filler distributed in the dielectric matrix have a substantially isotropic distribution in the solid dielectric matrix. Also described is method for manufacturing and using such a hybrid material for producing structural parts and supported films deposited on the surface of such a substrate for: detecting mechanical stress by direct piezoelectric effect; detecting temperature variations by direct pyroelectric effect; creating a mechanical wave by reverse piezoelectric effect in a flexible audio device, in a de-icing device or in a mechanical anti-fouling device; and manufacturing a soundproof material. | 10-25-2012 |
20130015393 | HIGHLY INSULATIVE AND HIGHLY STABLE PIEZOELECTRIC SINGLE LTGA CRYSTAL, METHOD FOR PRODUCING THE SAME, PIEZOELECTRIC ELEMENT USING SAID SINGLE LTGA CRYSTAL, AND COMBUSTION PRESSURE SENSORAANM Hayashi; TakayukiAACI Kitasaku-gunAACO JPAAGP Hayashi; Takayuki Kitasaku-gun JPAANM Aruga; ToshimitsuAACI Kitasaku-gunAACO JPAAGP Aruga; Toshimitsu Kitasaku-gun JPAANM Matsukura; MakotoAACI Hokuto-shiAACO JPAAGP Matsukura; Makoto Hokuto-shi JPAANM Anzai; YutakaAACI Hokuto-shiAACO JPAAGP Anzai; Yutaka Hokuto-shi JPAANM Miyamoto; AkioAACI Hokuto-shiAACO JPAAGP Miyamoto; Akio Hokuto-shi JPAANM Matsumura; SadaoAACI Hokuto-shiAACO JPAAGP Matsumura; Sadao Hokuto-shi JPAANM Furukawa; YasunoriAACI Hokuto-shiAACO JPAAGP Furukawa; Yasunori Hokuto-shi JP - In accordance with the present invention, there is provided a method for producing a single LTGA crystal from a polycrystalline starting material prepared from a mixture of La | 01-17-2013 |
20130026410 | ELECTROSTRICTIVE COMPOSITE AND METHOD FOR MAKING THE SAME - An electrostrictive composite includes a flexible polymer matrix, a plurality of carbon nanotubes and a plurality of reinforcing particles dispersed in the flexible polymer matrix. The carbon nanotubes cooperatively form an electrically conductive network in the flexible polymer matrix. | 01-31-2013 |
20130026411 | PIEZOELECTRIC POLYMER FILM ELEMENT, IN PARTICULAR POLYMER FOIL, AND PROCESS FOR THE PRODUCTION THEREOF - The present invention relates to a piezoelectric polymer film element, in particular a polymer foil, comprising a polymer matrix, wherein hollow particles are arranged in the polymer matrix, and a process for the production of such a piezoelectric polymer film element, comprising the steps: A) provision of hollow particles and B) introduction of the hollow particles into a polymer matrix and C) shaping of the polymer matrix as a polymer film. The invention furthermore relates to an electromechanical converter comprising at least one first polymer film which comprises hollow particles as fillers. | 01-31-2013 |
20130126774 | PIEZOELECTRIC FOAM STRUCTURES AND HYDROPHONE UTILIZING SAME - Disclosed is a piezoelectric foam formed of elastically anisotropic materials. The piezoelectric foam is defined with a unit cell having a relative density and volume fraction, and deformation specified by subjecting the unit cell to controlled mechanical and electrical loading conditions. Resultant stress and electric displacements field components are measured by capturing a homogeneous coupled response of the unit cell and by computing piezoelectric material constants using the captured homogeneous coupled response, to identify asymmetric and symmetric F1, F2 and F3 type piezoelectric foam structures. | 05-23-2013 |
20130153813 | POLING TREATMENT METHOD, PLASMA POLING DEVICE, PIEZOELECTRIC SUBSTANCE, AND MANFACTURING METHOD THEREFOR - The plasma poling device includes: a holding electrode | 06-20-2013 |
20130153814 | Solution or Suspension Containing Fluoropolymer, Method for Producing Same, and Use Thereof for Producing Piezoelectric and Pyroelectric Coatings - The invention relates to a method for producing a homogenous solution of a fluoropolymer, selected from fluoropolymers and fluoro-copolymers and mixtures of various fluoro-homopolymers and/or fluoro-copolymers in a high boiling solvent, whereby (a) the fluoropolymer to be dissolved is dissolved in a mixture of at least two solvents, the first comprising a boiling point of less than 150° C., and/or a vapor pressure of over 5 hPa (at 20° C.), and the second being a high boiling solvent comprising a boiling point at least 50 K higher than the first solvent and/or the boiling point thereof being selected so that the solvent mixture comprises a separation factor α of ≧1, and subsequently (b) the first solvent is substantially or completely removed from the mixture. The invention further relates to a method for producing suspensions of inorganic particles of a piezoelectrically and pyroelectrically active or activatable oxide in such fluoropolymer solutions and to the product of said method. The colorless fluoropolymer solutions and opaque white suspensions are suitable for producing laminar piezoelectric and pyroelectric coatings, in particular using doctor blade or screen printing methods. | 06-20-2013 |
20130240776 | LANGASITE-TYPE OXIDE MATERIAL, METHOD FOR PRODUCING SAME, AND RAW MATERIAL USED IN THE PRODUCTION METHOD - An oxide material having a langasite-type structure having a desired surface condition and a desired outer shape is obtained stably. By adding at least one selected from the group consisting of Ir, Pt, Au, and Rh to a raw material which is a composition used for producing a desired oxide material as an additive element, it is possible to control the wettability between a die portion at a bottom end of a crucible and a melt of the raw material, thereby implementing stable production of the oxide material while controlling the wetting and spread of the melt of the raw material leaked out through a hole of the crucible. | 09-19-2013 |
20130277599 | POLYMERS OBTAINED FROM MONOMERS ALLOWING A SEQUENTIAL POLYMERIZATION, AND THEIR USE FOR PREPARING IONIC CONDUCTORS - The present invention concerns polymers obtained by anionic initiation and bearing functions that can be activated by cationic initiations that are not reactive in the presence of anionic polymerization initiators. The presence of such cationic initiation functions allow an efficient cross-linking of the polymer after moulding, particularly in the form of a thin film. It is thus possible to obtain polymers with well-defined properties in terms of molecular weight and cross-linking density. The polymers of the present invention are capable of dissolving ionic compounds inducing a conductivity for the preparation of solid electrolytes. | 10-24-2013 |
20130306901 | PIEZOELECTRIC CERAMIC AND METHOD OF MANUFACTURING THE SAME - A piezoelectric ceramic is expressed by the composition formula 100[(Sr | 11-21-2013 |
20130306902 | PROCESS FOR PRODUCING A PURE-PHASE MULTISUBSTANCE SYSTEM, A CERAMIC MATERIAL BASED ON THE PURE-PHASE MULTISUBSTANCE SYSTEM, A SHAPED BODY, AND A COMPOSITE FORMED THEREFROM - A process for producing a homogenous multi compound system which is hydroxide- and/or oxide-based includes a first alternative process comprising providing a first and a second refractory metal in respective hydrofluoric solutions, and mixing the first and second hydrofluoric solutions to provide a mixed hydrofluoric solution comprising a dissolved first and second refractory metal. A second alternative process comprises dissolving the first and the second refractory metal in an alternative mixed hydrofluoric solution. The mixed hydrofluoric solution or the alternative mixed hydrofluoric solution is precipitated with a precipitant to provide a solids mixture in a suspension. The first and second refractory metal is from the group consisting of Mo, W, Nb, Re, Zr, Hf, V, Sb, Si, Al, and Ta. The first and second refractory metal are different. At least one of the first and second refractory metal is provided as a fluoro and/or as an oxyfluoro complex. | 11-21-2013 |
20130313467 | PIEZOELECTRIC PORCELAIN COMPOSITION - Provided is a Sr | 11-28-2013 |
20140027666 | PIEZOELECTRIC CERAMICS AND METHOD FOR MANUFACTURING THE SAME - There is provided a piezoelectric ceramics, including a perovskite compound of a non-stoichiometric composition represented by a composition formula (K | 01-30-2014 |
20140084204 | POLYMERIC PIEZOELECTRIC MATERIAL AND PROCESS FOR PRODUCING THE SAME - The present invention provides a polymeric piezoelectric material comprising an aliphatic polyester (A) with a weight-average molecular weight of from 50,000 to 1,000,000 and having optical activity, and a stabilizing agent (B) with a weight-average molecular weight of from 200 to 60,000 having at least one kind of functional group selected from the group consisting of a carbodiimide group, an epoxy group and an isocyanate group, wherein the crystallinity of the material obtained by a DSC method is from 20% to 80%, and a content of the stabilizing agent (B) is from 0.01 part by mass to 10 parts by mass with respect to 100 parts by mass of the aliphatic polyester (A), as well as a process for producing the same. | 03-27-2014 |
20140091249 | ELECTRET SHEET - Provided is an electret having high piezoelectric properties. An electret sheet of the invention is characterized in that it comprises a synthetic resin sheet is electrified by injecting electric charges thereinto, that the synthetic resin sheet comprises two types of synthetic resins incompatible with each other, and that these synthetic resins form a phase separated structure and are cross-linked through a polyfunctional monomer. Therefore, positive and negative charges in an apparently polarized state are present in the interfacial portions between the two types of synthetic resins incompatible with each other. By applying an external force to the electret sheet to deform it, the relative positions of these positive and negative charges are changed, and these changes cause a favorable electrical response. Therefore, the electret sheet has high piezoelectric properties. | 04-03-2014 |
20140103246 | METHOD FOR PRODUCING ALKALI METAL NIOBATE PARTICLES, AND ALKALI METAL NIOBATE PARTICLES - Disclosed are a method of producing fine particulate alkali metal niobate in a liquid phase system, wherein the size and shape of particles of the fine particulate alkali metal niobate can be controlled; and fine particulate alkali metal niobate having a controlled shape and size. Specifically disclosed are a method of producing particulate sodium-potassium niobate represented by the formula (1): Na | 04-17-2014 |
20140110622 | POLYMER MATERIAL CONTAINING ORGANICALLY MODIFIED LAYERED SILICATES - The present invention relates to a polymer material comprising a polymer and an organically modified layered silicate dispersed in the polymer. The total content of alkali and/or alkaline earth metal cations in the polymer material is ≦1 ppm. It relates further to the use of the polymer material as an electret material, and to an electromechanical converter comprising such a polymer material. | 04-24-2014 |
20140117272 | PIEZOELECTRIC COMPOSITIONS - Piezoelectric compositions are provided wherein mechanical and piezoelectric properties can be separately modulated. Preferred compositions include resin blends that comprise: (a) a piezoelectrically active polymer and (b) a matrix polymer, methods of making, and use of such resin blends. Advantages of preferred resin blends of the invention can include high piezoelectricity, mechanical strength and flexibility, convenient fabrication process, and high sensitivity at high temperatures. | 05-01-2014 |
20140291569 | NANOROD AND METHOD OF MANUFACTURING THE SAME - A nanorod and a method of manufacturing the same are disclosed, and a nanorod including a ZnO nanorod; and a coating layer disposed on a ZnO surface and including RuO | 10-02-2014 |
20140367605 | PIEZOCERAMIC COMPOSITION AND METHOD FOR MANUFACTURING THE SAME - A piezoceramic composition comprises, as the main phase, a crystalline phase of a perovskite structure signified as formula ABO | 12-18-2014 |
20160064645 | PIEZOELECTRIC THIN FILM AND METHOD FOR PRODUCING THE SAME - A piezoelectric thin film is formed through sputtering and consists essentially of scandium aluminum nitride. The carbon atomic content is 2.5 at % or less. When producing the piezoelectric thin film, scandium and aluminum are sputtered simultaneously on a substrate from a scandium aluminum alloy target material having a carbon atomic content of 5 at % or less in an atmosphere where at least nitrogen gas exists. The sputtering may be conducted also by applying an ion beam on an opposing surface of the alloy target material at an oblique angle. Moreover, aluminum and scandium may be also sputtered simultaneously on the substrate from an Sc target material and an Al target material. As a result, a piezoelectric thin film which exhibits excellent piezoelectric properties and a method for the same can be provided. | 03-03-2016 |
20160087191 | FERROELECTRIC AGGLOMERATES AND METHODS AND USES RELATED THERETO - Disclosed herein are ferroelectric agglomerates and methods related thereto. In certain aspects, the ferroelectric agglomerates can be made from particles that have been treated with SbX | 03-24-2016 |
20220140226 | PIEZOELECTRIC COMPOSITION, PIEZOELECTRIC ELEMENT, PIEZOELECTRIC DEVICE, PIEZOELECTRIC TRANSFORMER, ULTRASONIC MOTOR, ULTRASONIC WAVE-GENERATING ELEMENT, AND FILTER ELEMENT - A piezoelectric composition containing: at least one or more elements selected from alkali metal elements; at least one or more elements selected from a group consisting of vanadium, niobium, and tantalum; copper or copper and germanium; and oxygen. The piezoelectric composition has a main phase, and a high Cu-concentration phase in which a content ratio of copper is higher than the main phase, and when a content ratio of oxygen in the high Cu-concentration phase is set as O | 05-05-2022 |