| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | JPS6327720B2 - | JP7554178 | 1978-06-23 | JPS6327720B2 | 1988-06-03 | RIIZE MISHERU |
| 162 | Oscillation detection sensor | JP22436284 | 1984-10-25 | JPS61102524A | 1986-05-21 | TERADA HARUHIRO |
| PURPOSE:To increase the ability to detect strain by a diaphragm which has a recessed part and an oscillation detecting element which is joined with the diaphragm at the position corresponding to the recessed part. CONSTITUTION:The rectangular recessed part 5 is formed at the center part of the rectangular diaphragm 3. Then, the oscillation detecting element 4 is adhered to the diaphragm 3 in one body while covering the recessed part 5. Then, both end parts of the recessed part 5 project from edges of the oscillation detecting element 4. In this constitution, external force F is applied to the diaphragm 3 having the recessed part 5, and its strain distribution increases abruptly at the position of the recessed part 5 as shown in a graph B. This abruptly increased strain part is in the strain detection area A of the oscillation detecting element 4, so the strain detection ability of the oscillation detecting element 4 is improved. | ||||||
| 163 | Wave transmitter for large depth | JP22681082 | 1982-12-27 | JPS59120000A | 1984-07-11 | ONODA HARUSHIGE |
| PURPOSE:To reduce the variation of electroacoustic characteristics extending from a small depth to a large depth by providing a support plate between a front mass and a piezoelectric element to form a hollow front mass having equivalently a 1/4 wavelength to the resonance frequency. CONSTITUTION:A support plate 14 is set at the position of a vibration node of a vibrating system containing a front mass 11, a piezoelectric element 12 and a rear mass 13. The mass 11 is joined with the plate 14, and the plate 14 is adhered to the element 12 and the mass 13. The mass 11 is made of a metal and is a hollow cylinder having a closed one side. The system of the element 12 and the mass 13 is driven by the alternating voltage supplied through a cable 16. Thus the mass 11 having a length equivalent to 1/4 wavelength is excited to radiate sound waves. | ||||||
| 164 | JPS5736599B2 - | JP13548876 | 1976-11-12 | JPS5736599B2 | 1982-08-04 | |
| 165 | JPS57501118A - | JP50267681 | 1981-07-20 | JPS57501118A | 1982-07-01 | FREI KARL |
| 166 | JPS56501862A - | JP50056281 | 1981-01-05 | JPS56501862A | 1981-12-17 | |
| 167 | Diaphragm plate for acoustic device | JP2789480 | 1980-03-07 | JPS56125193A | 1981-10-01 | HASUMI SHIGERU; TANAKA KAZUO; NISHITOI TAKASHI |
| PURPOSE:To increase the elasticity, by adding graphite fine powder to a type of highly elastic fiber at least selected from carbon fiber, glass fiber and aromatic polyamide fiber. CONSTITUTION:The prepleg of glass cloth:polyimide resin:graphite=40:35:25(wt. ratio) is formed by adding graphite CP to glass cloth (e.g., Nitto-bo made glass cloth WE-116E), immersed with 70pts. of N-methylpirodorin solution to 100pts. of polyimide resin. This is molded into cone type diaphragm plate with metal mold. The physical property of the diaphragm plate like this is sound velocity of 4,000m/ sec at room temperature and 0.030 of internal loss. The diaphragm plate thus obtained is excellent in heat resistance and flame resistance and high in the elasticity. | ||||||
| 168 | JPS5641040B2 - | JP5226277 | 1977-05-07 | JPS5641040B2 | 1981-09-25 | |
| 169 | Display unit | JP13640479 | 1979-10-24 | JPS5661897A | 1981-05-27 | KUMADA AKIO; ANCHI TAKAHIKO; HONMA KIYOSHI; TANAKA MASASHI |
| PURPOSE: To prevent generated sound intensity from lowering as to a display unit having a transparent cover serving as a vibrator, by fitting the transparent cover to a case with an elastic body interposed. CONSTITUTION: Opaque layer 15 is formed at the circumferential edge of the reverse surface of transparent cover 14, transparent electrodes 19 and 20 are formed on the top surface of layer 15, and electrode 19 is electrically connected to conductor layer 18. Cover 14 is fitted in conductive case 22 at its circumferential edge part with conductive elastic body 21 interposed. Thus, since cover 14 has both end, serving as nodes of vibration, held elastically, cover 14 is vibrated without hindrance and the sound never gets smaller. Consequently, the large sound is generated to attain the function of an alarm. COPYRIGHT: (C)1981,JPO&Japio | ||||||
| 170 | Ultrasonic wave oscillator | JP12936779 | 1979-10-09 | JPS5654199A | 1981-05-14 | KOTANINO KIYOSHI |
| PURPOSE:To obtain the oscillator less in the number of piezoelectric elements and with good directivity, by providing the resonator having a plurality of resonance projections at the both ends of piezoelectric elements. CONSTITUTION:Electrodes 12, 13 are formed at the both ends of disc shape piezoelectric element 11. Further, resonators 15A, 15B having resonant projections 16A, 16B are fixed to the both ends of the element 11. When a voltage is fed to the electrodes 12, 13, electric-vibration conversion is made with the element 11 and sound waves are radiated from the tip of the resonant projections 16A, 16B. With this constitution, the number of piezoelectric elements is made less and the oscillator sharp in the directivity can be obtained. | ||||||
| 171 | Ultrasonic processor | JP3677979 | 1979-03-28 | JPS55128999A | 1980-10-06 | OKADA KOUZOU; OOYA KANJI |
| PURPOSE:To obtain the even vibrations over the entire diaphragm by setting the impedance of each oscillator provided at the outer circumference side smaller than the impedance of each oscillator at the inner circumference side. CONSTITUTION:The 20 units of oscillator 2 in all are provided to diaphragm 1a in 4 units on the vertical rows and 5 units on the horizontal rows respectively and equidistantly in both vertically and horizontally. And then the impedance of 14 units of oscillator 2 at the outer circumference side is set smaller than that of 6 units of oscillator 2 at the inner circumference side. As a result, the erosion due to the abnormal vibration occurring at the outer circumference part of diaphragm 1a is suppressed. Thus not only the duarability but the even vibration can be enhanced. | ||||||
| 172 | Circular ultrasonic vibration element | JP2800079 | 1979-03-09 | JPS55120299A | 1980-09-16 | OOYA KANJI; OKADA KOUZOU |
| PURPOSE:To radiate an even ultrasonic wave from the broad irradiation surface of a diaphragm by concentrically connecting many piezoelectric transformers to the circumference of one piezoelectric transformer, coupled with the center part of the surface of a diaphragm piece, at intervals of one-fourth wave-length of transverse vibration. CONSTITUTION:When piezoelectric converters 12a-12c coupled with circular disphragm 11 in a fixed pattern are drived in phase at a time at the same frequency, parts 11a, 11b and 11c of the diaphragm coupling center, intermediate and external piezoelectric converter groups 12a, 12b and 12c are amplitude-displaced as shown by small curves (b), (c) and (d) and longitudinal vibration of amplitude displacement like curve (e) on the whole can be obtained. Then, the impedance of external circumference piezoelectric converter group 12c is minimized and that of center piezoelectric converter 12a is maximized or center piezoelectric converter 12a is connected out of phase, so that the diaphragm can longitudinally be vibrated with a uniform amplitude value over its entire surface. | ||||||
| 173 | Audio vibration plate and its manufacture | JP14721778 | 1978-11-30 | JPS5574294A | 1980-06-04 | YAMAMURO ISAO; TSUKAGOSHI NOBUHIRO |
| PURPOSE:To obtain the audio vibration plate easy for the manufacture and improving the audio various characteristics remakably, by forming the construction that the internal part has a number of small air chambers with the material mixing graphite powder and resin. CONSTITUTION:The material mixing graphite powder and polyvinyl chloride as the core 1 is manufactured with injection or compression. After molding the core 1 in honey-comb, it is heated under oxidation atmosphere for preparatory baking. After that, it is heated under non-oxidation atmosphere and carbonized. Further, as the skin 2, graphite powder and resin are mixed and pressed into flat plate as the same as the core 1. Thus, at the surface of the core 1 thus manufactured, the skin 2 is bonded with the adhesives and assembled to form the honey-comb audio vibrating plate. | ||||||
| 174 | JPS5427250B2 - | JP14410874 | 1974-12-17 | JPS5427250B2 | 1979-09-08 | |
| 175 | Diaphragm for speaker | JP1191377 | 1977-02-02 | JPS5396821A | 1978-08-24 | MIYOSHI YASUSHI; ISHII YASUHIRO |
| PURPOSE:To improve response characteristics in a high band which is far from being attainable with ordinary carbon-fiber containing diaphragms by specfying Young's modulus and blending ratio of carbon fibers. | ||||||
| 176 | JPS52136627U - | JP4525876 | 1976-04-12 | JPS52136627U | 1977-10-17 | |
| 177 | Method of assembling electromagnetic acoustic signal horm and signal horn produced by said method | JP13548876 | 1976-11-12 | JPS5294796A | 1977-08-09 | DOMINIKO FURIIGO |
| 178 | ULTRASONIC TRANSDUCERS | EP16849697.4 | 2016-09-23 | EP3354042A1 | 2018-08-01 | Pompei, Frank Joseph |
| Ultrasonic transducers that include membrane films and perforated baseplates. An ultrasonic transducer includes a baseplate having a conductive surface with a plurality of apertures, openings, or perforations formed thereon or therethrough, and a membrane film having a conductive surface. The membrane film is positioned adjacent to the apertures, openings, or perforations formed on or through the baseplate. By applying a voltage between the conductive surface of the membrane film and the conductive surface of the baseplate, an electrical force of attraction can be created between the membrane film and the baseplate. Varying this applied voltage can cause the membrane film to undergo vibrational motion. The dimensions corresponding to the size and/or shape of the apertures, openings, or perforations formed on or through the baseplate can be varied so that different regions of the baseplate produce different frequency responses, allowing the net bandwidth of the ultrasonic transducer to be increased. | ||||||
| 179 | KOMPOSITMEMBRAN UND VERFAHREN ZUM HERSTELLEN EINER KOMPOSITMEMBRAN | EP18154106.1 | 2016-04-14 | EP3348393A1 | 2018-07-18 | HOSSAIN, Mohammad Mokul; MEIER, Hanspeter; CAMANI, Matteo |
Die Erfindung betrifft ein Kompositmembran mit mindestens einer Trägerschicht und einer Elektro-Spinning-Membran, welche auf der mindestens einen Trägerschicht angeordnet ist, wobei die Elektro-Spinning-Membran aus übereinander liegenden Fasern unter Ausbildung einer Porenstruktur gebildet ist. Die Porenstruktur des Komposits ist derart ausgebildet, dass das Komposit eine Wassersäule von mindestens 1 m und eine Luftdurchlässigkeit von mindestens 5 L/m2*s aufweist. Weiterhin betrifft die Erfindung ein Verfahren zum Herstellen einer Kompositmembran, bei welchem eine Trägerschicht vorgesehen wird und auf der Trägerschicht nach dem Elektro-Spinning-Verfahren eine Membran ausgebildet wird, wobei die Membran aus übereinander liegenden Fasern mit einer Porenstruktur hergestellt wird.
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| 180 | MICROMACHINED ULTRASONIC TRANSDUCERS WITH A SLOTTED MEMBRANE STRUCTURE | EP15846584 | 2015-10-01 | EP3201122A4 | 2018-05-30 | GUEDES ANDRE; HORSLEY DAVID; KIANG MENG-HSIUNG; PRZYBYLA RICHARD; SHELTON STEFON |
| A piezoelectric micromachined ultrasonic transducer (PMUT) device includes a substrate having an opening therethrough and a membrane attached to the substrate over the opening. A portion of the membrane that overlies the opening is divided into a plurality of cantilevers that are mechanically coupled so that the cantilevers resonate at a common frequency. | ||||||
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