Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8183747 | Piezoelectric porcelain composition, and piezoelectric ceramic electronic component A piezoelectric porcelain composition includes a main ingredient represented by a general formula ((1−x)(K1−a−bNaaLib) (Nb1−cTac)O3−xM2M4O3) (where M2 represents Ca, Ba or Sr, M4 ... | 05/22/2012 |
| 8183748 | Piezoelectric thin film, ink jet head, method for forming image with the ink jet head, angular velocity sensor, method for measuring angular velocity with the angular velocity sensor, piezoelectric generating element and method for generating electric power with the piezoelectric generating element Provided is a lead-free piezoelectric thin film containing a lead-free ferroelectric material and having low dielectric loss, high electromechanical coupling coefficient and high piezoelectric constant comparable to that of lead zirconate titanate (PZT). The piezoel... | 05/22/2012 |
| 8179026 | Nanotubes, nanorods and nanowires having piezoelectric and/or pyroelectric properties and devices manufactured therefrom Disclosed herein is a device comprising a pair of electrodes; and a nanotube, a nanorod and/or a nanowire; the nanotube, nanorod and/or nanowire comprising a piezoelectric and/or pyroelectric polymeric composition; the pair of electrodes being in electrical communic... | 05/15/2012 |
| 8179025 | Lead-free piezoceramic materials The present invention relates to lead-free piezoelectric ceramic materials comprising crystalline (and preferably perovskite crystalline) structures of the formula Bi1-x(RE)xFeO3, where RE is one or more of La, Pr, Nd, Pm, Sm, Eu, Gd... | 05/15/2012 |
| 8164234 | Sputtered piezoelectric material Piezoelectric actuators having a composition of Pb1.00+x(Zr0.52Ti0.48)1.00−yO3Nby, where x>−0.02 and y>0 are described. The piezoelectric material can have a Perovskite, which can enable good bend... | 04/24/2012 |
| 8129889 | Piezoelectric ceramic compositions and piezoelectric elements A piezoelectric ceramic composition includes a main component represented by general formula {(Pb1-x-yCaxSry) {Ti1-z(Ni1/3Nb2/3)z}O3}, wherein 0≦x≦0.2 (preferably 0≦x≦0.1... | 03/06/2012 |
| 8102100 | Piezoelectric material and piezoelectric element A piezoelectric element includes a first electrode, a piezoelectric film disposed on the first electrode, and a second electrode disposed on the piezoelectric film. The piezoelectric film is composed of piezoelectric material that is lead free and formed by mixing 1... | 01/24/2012 |
| 8084924 | Piezoelectric/electrostrictive film element having wavy grain boundaries An actuator includes a first electrode disposed on the top surface of a ceramic substrate (for example, zirconium oxide), a piezoelectric/electrostrictive substance disposed on the first electrode, and a second electrode disposed on the piezoelectric/electrostrictiv... | 12/27/2011 |
| 8084925 | Piezoelectric thin film elemental device, sensor and actuator A piezoelectric thin film element has a piezoelectric thin film on a substrate, the piezoelectric thin film has a (K1-x,Nax)NbO3thin film expressed by a compositional formula (K1-xNax)NbO3(0 | 12/27/2011 |
| 8080924 | Liquid ejecting head, liquid ejecting apparatus, and actuator device A liquid ejecting head including a pressure-generating chamber which communicates with a nozzle opening, and a piezoelectric element including a first electrode, a piezoelectric layer formed above the first electrode and having a perovskite structure represented by ... | 12/20/2011 |
| 8080923 | Piezoelectric/electrostrictive membrane element A piezoelectric/electrostrictive membrane element is provided, including a ceramic substrate, a membranous piezoelectric/electrostrictive portion including a piezoelectric/electrostrictive body made of a large number of crystal particles having a lead zirconate tita... | 12/20/2011 |
| 8076828 | Piezoelectric ceramic composition and piezoelectric ceramic electronic component A piezoelectric ceramic includes a main constituent represented by the general formula {(1−x) (K1-a-bNaaLib)(Nb1-cTac)O3}−xM2M4O3}, and as accessory constituents, 2α mol of Na, (α+β)... | 12/13/2011 |
| 8063543 | Piezoelectric thin film element including upper and lower electrodes, and an actuator and a sensor fabricated by using the same A piezoelectric thin film element includes a substrate, a lower electrode, a piezoelectric thin film, and an upper electrode. The lower electrode, the piezoelectric thin film and the upper electrode are formed on the substrate. The piezoelectric thin film includes a... | 11/22/2011 |
| 8058779 | Piezoelectric thin film element A piezoelectric thin film element includes a bottom electrode, a piezoelectric layer and a top electrode on a substrate. The piezoelectric layer includes as a main phase a perovskite-type oxide represented by (NaxKyLiz)NbO3 | 11/15/2011 |
| 8040024 | Piezoceramic material, piezoelectric element and non-resonance knock sensor A piezoceramic material according to an embodiment of the present invention has a composition represented by Pbm{Zr1-x-y-zTixSny(Sb1-nNbn)z}O3 where 1.000≦m≦1.075, 0.470≦x | 10/18/2011 |
| 8035281 | Physical quantity detecting sensor and actuator A sensor for detecting a physical quantity includes a piezoelectric thin film device having a lower electrode, a piezoelectric thin film and an upper electrode, and a voltage detecting device connected between the lower and upper electrodes of the piezoelectric thin... | 10/11/2011 |
| 8030828 | Piezoelectric device, process for producing the piezoelectric device, and liquid discharge device A piezoelectric device includes a piezoelectric film, and electrodes through which an electric field can be applied to the piezoelectric film along the thickness direction of the piezoelectric film. The piezoelectric film contains a ferroelectric phase in which the ... | 10/04/2011 |
| 8030829 | Hybrid piezoelectric composites with high electromechanical characteristics A hybrid piezoelectric composite comprises a layer of a polymer matrix comprising particles of a PZT group in a micro range of dimensions, which is sandwiched between two layers of a polymer matrix comprising particles of a dielectric material in a nano range of dim... | 10/04/2011 |
| 8022604 | (Li, Na, K)(Nb, Ta)O3 type piezoelectric/electrostrictive ceramic composition containing 30-50 mol% Ta and piezoelectric/electrorestrictive device containing the same The invention provides a (Li, Na, K)(Nb, Ta)O3 type piezoelectric/electrostrictive ceramic composition capable of being sintered at a low temperature and providing good electric field-induced strain at the time of high electric field application at a temp... | 09/20/2011 |
| 8022605 | Electrical multi-layer component A piezoelectric multi-layer component is described herein. The component includes a plurality of ceramic layers, and one or more electrode layer. The one or more electrode layer has a material structure that is different than the plurality of ceramic layers and is c... | 09/20/2011 |
| 8004163 | Substrate with a piezoelectric thin film A substrate has a first thermal expansion coefficient and a piezoelectric thin film has a second thermal expansion coefficient. The piezoelectric thin film is mainly composed of a potassium sodium niobate (K,Na)NbO3 with a perovskite structure. A curvatur... | 08/23/2011 |
| 8004162 | Piezoelectric device, angular velocity sensor, electronic apparatus, and production method of a piezoelectric device A piezoelectric device is provided and includes a substrate, a first electrode film, a piezoelectric film, and a second electrode film. The first electrode film is formed on the substrate. The piezoelectric film is represented by Pb1+X(ZrYTi | 08/23/2011 |
| 8004161 | Multilayered piezoelectric element and method of producing the same A multilayered piezoelectric element and a method of producing the multilayered piezoelectric element are disclosed. The multilayered piezoelectric element is made of piezoelectric ceramic layers and electrode formation layers which are alternately laminated. The pi... | 08/23/2011 |
| 7999448 | Piezoelectric material, multilayer actuator and method for manufacturing a piezoelectric component A piezoelectric material contains a material with the molecular formula P1−c−dDcZd, wherein: 0 | 08/16/2011 |
| 7990029 | Ceramic material, method for producing the same, and electro-ceramic component comprising the ceramic material A ceramic material includes lead zirconate titanate, which additionally contains Nd and Ni. For example, the ceramic material may have a composition according to the following formulae: for y≦x/2: a PbO+(Pb1−3x/2+y□x/2−yNdx)((... | 08/02/2011 |
| 7977853 | Piezoelectric device, and liquid discharge device using the piezoelectric device A piezoelectric device having a piezoelectric film formed over a substrate through an electrode by vapor phase deposition using plasma, and constituted by columnar crystals of one or more perovskite oxides Pb(Tix, Zry, Mz)O3 | 07/12/2011 |
| 7973456 | Piezoelectric ceramic and piezoelectric element employing it The piezoelectric element 20 of the invention comprises a pair of electrodes 2,3 and a piezoelectric ceramic 1 comprising as the major component a solid solution of the two components KNbO3 and BaTiO3. In the solid solution... | 07/05/2011 |
| 7965021 | Piezoelectric thin film and method of manufacturing the same, ink jet head, method of forming image with the ink jet head, angular velocity sensor, method of measuring angular velocity with the angular velocity sensor, piezoelectric generating element, and method of generating electric power with the piezoelectric generating element Provided are a piezoelectric thin film including a lead-free ferroelectric material and exhibiting high piezoelectric performance comparable to that of lead zirconate titanate (PZT), and a method of manufacturing the piezoelectric thin film. The piezoelectric thin f... | 06/21/2011 |
| 7965020 | Piezoelectric ceramic and piezoelectric element A piezoelectric ceramic which has a large value of coercive electric field and, in addition, which can be fired at low temperatures of 950° C. or lower, is provided. It has a composition represented by Pbx-a-dBiaM3d{M1b(M... | 06/21/2011 |
| 7960901 | Piezoelectric device having a ferroelectric film including a ferroelectric material A method of manufacturing a ceramic includes forming a film which includes a complex oxide material having an oxygen octahedral structure and a paraelectric material having a catalytic effect for the complex oxide material in a mixed state, and performing a heat tre... | 06/14/2011 |
| 7956519 | Piezoelectric device having a ferroelectric film including a solid solution A method of manufacturing a ceramic includes forming a film which includes a complex oxide material having an oxygen octahedral structure and a paraelectric material having a catalytic effect for the complex oxide material in a mixed state, and performing a heat tre... | 06/07/2011 |
| 7956518 | Piezoelectric/electrostrictive ceramic composition and piezoelectric/electrostrictive device The invention provides a (Li, Na, K)(Nb, Ta, Sb)O3 type piezoelectric/electrostrictive ceramic composition excellent in the electric field-induced strain at the time of high electric field application. The piezoelectric/electrostrictive film of a piezoele... | 06/07/2011 |
| 7948154 | Piezoelectric substance, piezoelectric element, and liquid discharge head and liquid discharge apparatus using piezoelectric element A piezoelectric substance which is made of oxide with perovskite type structure which is made of ABO3, where a principal component of A is Pb, and principal components of B contain at least two kinds of elements among Nb, Mg, Zn, Sc, Cd, Ni, Mn, Co, Yb, I... | 05/24/2011 |
| 7944126 | Piezoelectric ceramic, vibrator and ultrasonic motor Provided is a piezoelectric ceramic 1 containing a compound represented by the following general formula (1), as a main component and at least one element selected from Mn, Fe and Cu in an amount of 0.04 to 0.6% by mass based on the main component, and a vibr... | 05/17/2011 |
| 7944127 | Piezoelectric ceramic composition and piezoelectric part A piezoelectric ceramic composition contains main components represented by a general formula of [(Pb1-x-yCaxSry){Ti1-z(Zn1/2W1/2)z}O3], and x, y, and z satisfy 0≦x≦0.2 (pref... | 05/17/2011 |
| 7928637 | Piezoelectric materials A piezoelectric perovskite mixed oxide compound has the general formula (BiFeO3)x—(PbTiO3)1-x and contains up to 5 at % lanthanum or other rare earth substitution, in which x has a value in the range 0.5 to 0.9. Such com... | 04/19/2011 |
| 7928638 | Electromechanical actuators Apparatus including layer of polarizable material located between first and second electrodes. Polarizable material has block copolymeric composition including elastomeric domain blocks and conductive domain blocks. Method that includes providing layer of polarizabl... | 04/19/2011 |
| 7923906 | Process for forming a ferroelectric film, ferroelectric film, ferroelectric device, and liquid discharge apparatus A ferroelectric film containing a perovskite type oxide represented by Formula (P) is formed on a substrate, which stands facing a target, by a sputtering technique under conditions of a height of a shield, which surrounds an outer periphery of the target on the sub... | 04/12/2011 |
| 7906889 | Metal oxide, piezoelectric material and piezoelectric element Provided are a piezoelectric material without using lead or an alkali metal, the piezoelectric material having a stable crystal structure in a wide temperature range, high insulation property, and high piezoelectric property, and a piezoelectric element using the pi... | 03/15/2011 |
| 7902730 | Piezoelectric thin film device A sensor or actuator includes a piezoelectric thin film device including a lower electrode, a piezoelectric thin film and an upper electrode, and a voltage detecting device connected between the lower and upper electrodes of the piezoelectric thin film device. The p... | 03/08/2011 |
