Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 8126170 | Electromagnetic interference shields with piezos Methods and apparatus for improving the acoustical performance associated with a speaker, such as a piezoelectric speaker, are disclosed. According to one aspect, an apparatus includes a substrate, a can mounted on the substrate, and a piezoelectric speaker arrangem... | 02/28/2012 |
| 8126169 | Super magnetostriction speaker A supermagnetostriction speaker featuring good acoustic characteristics when used being placed on a horizontal surface. The supermagnetostriction speaker comprises a yoke of a cylindrical shape having a bottom and a lid and constituting a magnetic path; a supermagne... | 02/28/2012 |
| 8121317 | Piezoelectric microphone Provided is a piezoelectric microphone. The piezoelectric microphone includes a plurality of cells each having a lower electrode, a piezoelectric layer, and an upper electrode. The cells can be arranged on a protection layer in various patterns. Since the piezoelect... | 02/21/2012 |
| 8116487 | Piezoelectric speaker and electronic apparatus with piezoelectric speaker Provided is a piezoelectric speaker (40) including: a piezoelectric element (42) that deforms in response to an input signal; a diaphragm (43) that is set in bending motion by the piezoelectric element (42) to generate sound; and a resili... | 02/14/2012 |
| 8107650 | Piezoelectric electroacoustic transducing device In a piezoelectric electroacoustic transducing device which is to be incorporated in an electronic apparatus such as a portable telephone, and which is used as a sound source, the sound pressure of the low-frequency range is improved, the productivity is improved, a... | 01/31/2012 |
| 8094843 | Low-profile piezoelectric speaker assembly A low-profile speaker assembly comprises a substrate and a substantially plan piezoelectric element disposed in a plane substantially parallel to the substrate and mechanically connected to the substrate at one or more edges. A tuning mass is attached to a face of t... | 01/10/2012 |
| 8023671 | Piezoelectric buzzer driving circuit A piezoelectric buzzer driving circuit (200) for driving a piezoelectric buzzer (211) with two terminals includes a reverser (216). The reverser includes an output terminal and an input terminal (24) configured for receiving a controlling... | 09/20/2011 |
| 8014547 | Piezoelectric speaker and method for manufacturing the same A piezoelectric speaker comprises a plurality of diaphragms, connecting components, and piezoelectric elements. The plurality of diaphragms are each formed by a laminated material in which a core layer made of an insulating material is laminated to skin layers each ... | 09/06/2011 |
| 8000483 | Electrostatic loudspeaker systems and methods Embodiments of an electrostatic loudspeaker utilize first and second stators and a diaphragm disposed therebetween, each of the stators and the diaphragm having an electrically conductive portion, wherein the conductive portions of the first stators are electrically... | 08/16/2011 |
| 7916880 | Transducer An inertial force transducer having an operative frequency range comprises a resonant element having a frequency distribution of modes in the operative frequency range of the transducer and a coupler for mounting the resonant element to a site to which force is to b... | 03/29/2011 |
| 7860259 | Piezoelectric acoustic element, acoustic device, and portable terminal device A piezoelectric acoustic element 1 of the present invention comprising a hollow casing 5 having a opening 3, a piezoelectric element 7 that is disposed in said casing 5 and bends when a voltage is applied thereto, and diaphragm ... | 12/28/2010 |
| 7822216 | Electroacoustic transducer using diaphragm and method for producing diaphragm An electroacoustic transducer has an cup chamber and a diaphragm made of deformable electrostrictive polymer, which is attached to an opening of the chamber. The electroacoustic transducer also has first and second adaptive electrode layers formed on a front surface... | 10/26/2010 |
| 7764804 | Panel-typed loud speaker and an exciter therefor An exciter for a panel-type loud speaker comprises a bimorph and a bimorph holding member. The bimorph comprises a plate member and a pair of piezoelectric ceramic layers, each formed on the opposite sides of the plate member. The bimorph holding member is holds one... | 07/27/2010 |
| 7684576 | Resonant element transducer A transducer (14) for producing a force which excites an acoustic radiator, e.g. a panel (12) to produce an acoustic output. The transducer (14) has an intended operative frequency range and comprises a resonant element which has a distribution ... | 03/23/2010 |
| 7668323 | Electrostatic ultrasonic transducer and ultrasonic speaker A push-pull type electrostatic ultrasonic transducer includes a vibrating film having a conductive layer and a pair of fixed electrodes provided at respective surfaces of the vibrating film. The front-side fixed electrode and the rear-side fixed electrode sandwich t... | 02/23/2010 |
| 7620193 | Acoustic actuators An acoustic transducer comprises an active element which changes in length along a first axis in response to an audiofrequency input signal, the element being mounted between an inertial mass and a foot which in use engages a surface whereby audiofrequency vibration... | 11/17/2009 |
| 7555133 | Electro-acoustic transducer An electro-acoustic transducer includes a first electro-acoustic transduction unit. The first electro-acoustic transduction unit includes an acoustic radiation plate which radiates a sound wave, a bending vibration plate including a vibrator, and a first coupling me... | 06/30/2009 |
| 7447324 | Piezoelectric sounding body and electronic device using the same Electrode layers 22A-22C, 24A-24C are formed on both main surfaces of each of piezoelectric layers 20A, 20B. Voltages of different polarities are respectively applied to the electrode layers next to each other on the same ma... | 11/04/2008 |
| 7421088 | Multifunction transducer Multi-function transducers (130, 700) that are suitable for use in handheld devices such as cellular telephones (100, 900) and are capable of emitting audio, and generating accelerations of sufficient magnitude, and at frequencies that can be sensed by... | 09/02/2008 |
| 7378776 | Piezoelectric ceramic composition and piezoelectric elements using the same A piezoelectric ceramic composition includes a top-layer, a bottom-layer and at least one intermediate-layer ceramic sheets stacked to each other for sintering. An alloy layer of silver and palladium is interposed between every two ceramic sheets, and a sliver layer... | 05/27/2008 |
| 7376236 | Piezoelectric film sonic emitter A speaker device for emitting subsonic, sonic or ultrasonic compression waves comprising a generally hollow drum, a rigid emitter plate attached to the drum, and a plurality of apertures formed within the plate which are covered by a thin piezoelectric film disposed... | 05/20/2008 |
| 7355322 | Ultrasonic transducer, ultrasonic speaker and method of driving and controlling ultrasonic transducer An ultrasonic transducer including: a fixed electrode; a vibrating film placed opposite to a surface of the fixed electrode and having a conducting layer; a member that holds the fixed electrode and vibrating film; the fixed electrode including a driving-use fixed e... | 04/08/2008 |
| 7342351 | Piezoelectric electronic component, and production method therefor, and communication equipment A piezoelectric electronic component for use in a cellular phone or the like and capable of achieving reductions in size and profile is provided. A piezoelectric element oscillating in response to application of an input signal and outputting an output signal corres... | 03/11/2008 |
| 7333621 | Conductive stub of sound exciter A conductive stub of a sound exciter comprises an insulating stub and at least two beams. Each beam has a positive electrode surface and a negative electrode surface. The stub is connected with a positive electrode lead and a negative electrode lead serves for being... | 02/19/2008 |
| 7316289 | Electro-acoustic transducer and method of manufacturing transducer An electro-acoustic transducer includes a tone generator, a vibrator, and a case. The tone generator includes a diaphragm, and a voice coil joined to the diaphragm. The vibrator includes a magnetic circuit having a magnetic gap at which the voice coil is positioned,... | 01/08/2008 |
| 7301224 | Surface acoustic wave device and manufacturing method of the same A surface acoustic wave device has a SAW device element 10 and a package 20 housing the SAW device element. The package includes a resin substrate 20 having metal patterns 21 and 22 formed on both surfaces thereof, and a resin cap ... | 11/27/2007 |
| 7289638 | Electroacoustic microphone An electroacoustic capsule or electroacoustic transducer for an electroacoustic device has electrostrictive or magnetostrictive elements connected to a controllable power supply. Dimensional changes of the electrostrictive or magnetostrictive elements cause changes ... | 10/30/2007 |
| 7284638 | Loudspeaker low profile quarter wavelength transmission line and enclosure and method A speaker enclosure including a compact quarter wavelength transmission path in the shape of a closed spiral that expands radially outward from a centrally located loudspeaker mounting location. The height of the transmission path has a minimum height that is equal ... | 10/23/2007 |
| 7286964 | Methods for monitoring structural health conditions Methods and recordable media for monitoring structural health conditions. The present invention provides a method for interrogating a damage of a host structure using a diagnostic network patch (DNP) system having patches. An interrogation module partitions the plur... | 10/23/2007 |
| 7286680 | Cylindrical microphone having an electret assembly in the end cover A microphone includes a separate end cover with a sound port. A diaphragm is directly attached to the end cover. The backplate is positioned within the housing against a ridge near an end of the housing. A spacer is positioned against the backplate. The diaphragm en... | 10/23/2007 |
| 7283637 | Exciting device An exciting device capable of producing sound by sound-producing vibration body of a main body of an apparatus is provided. An exciting member 32A thin and long in the direction X is provided on a vibration substrate 31 thin and long in the direction X... | 10/16/2007 |
| 7280087 | Multiple browser interface The present invention provides a display controller driving multiple browser displays, which are associated with user input devices. Preferably, the display controller runs a browser application for each display and receives input from each user input device. Primar... | 10/09/2007 |
| 7280665 | Image display device with built-in loudspeakers An image display device has a main display body provided with a thin display unit, a low-frequency loudspeaker (woofer) and two middle and high frequency loudspeakers (tweeters) and a stand supporting the main display body. The stand has a base being just opposite a... | 10/09/2007 |
| 7263196 | Mobile communications terminal with flat loudspeaker disposed in the terminal housing A mobile communications terminal is provided which is designed to transmit speech signals and to receive and reproduce speech signals, and which has a speech-reproduction device, wherein improved speech quality is achieved in that the speech-reproduction device has ... | 08/28/2007 |
| 7259500 | Piezoelectric device A piezoelectric device includes an element substrate having a piezoelectric element and an electrically conductive pattern connected to the piezoelectric element, a supporting layer arranged within the periphery of the piezoelectric element, a cover extending so as ... | 08/21/2007 |
| 7247976 | Piezoelectric vibrator A piezoelectric vibrator having excellent shock resistance and high reliability is offered. The centers of first and second piezoelectric vibrating plates are supported by pillars on a main surface of an enclosure and nearly or substantially parallel to the main sur... | 07/24/2007 |
| 7237564 | Distribution of energy in a high frequency resonating wafer processing system A transducer for use in an acoustic energy cleaner is provided. The transducer includes a resonator and a plurality of crystals bonded to a surface of the resonator. The plurality of crystals is configured to be bonded to the surface of the resonator in a staggered ... | 07/03/2007 |
| 7239714 | Microphone having a flexible printed circuit board for mounting components In a microphone cartridge, a flexible printed circuit board serves two functions, separating the diaphragm and backplate, and electrically connecting the cartridge and the buffer amplifier. The flex-print includes a spacer portion that maintains the appropriate dist... | 07/03/2007 |
| 7227966 | Piezo-electric speaker A piezo-electric speaker ensures a uniform sound in a broad band and can easily reproduce a signal of large amplitude or sound. A piezo-electric speaker has a piezo-electric member to generate a vibration according to an electric signal applied thereto. A piezo-elec... | 06/05/2007 |
| 7227967 | Piezoelectric transducer adapted to bridge of stringed instrument A piezoelectric transducer, adapted to a bridge of a stringed instrument such as a sound mute guitar, comprises a piezoelectric element roughly having an elongated rectangular shape, a pair of electrodes respectively attached to the upper and lower surfaces of the p... | 06/05/2007 |
