| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 261 | Piezo actuator | JP53771299 | 1998-10-21 | JP2001516512A | 2001-09-25 | シュモル クラウス−ペーター; ベッキング フリードリッヒ; ハインツ ルードルフ |
| A piezoelectric actuator having a plurality of plates of a piezoelectric material whose polarization direction runs perpendicularly to the plate plane, and which are stacked one over another in their polarization direction. The piezoelectric actuator includes a control voltage source having two contacts, two groups of at least two outer electrodes, respectively, and a plurality of internal electrodes which, in each case, are arranged between the piezoelectric plates. In this context, the outer electrodes of the first group are electrically connected to a first contact of control voltage source, and the outer electrodes of the second group to the second contact of control voltage source. Internal electrodes alternately contact outer electrodes in such a way that, in each case, an internal electrode is electrically connected to one contact of control voltage source, and the internal electrode that is next in the stacking direction is electrically connected to the other contact of control voltage source. The internal electrodes contact the outer electrodes in a cyclic sequence. | ||||||
| 262 | Piezoelectric actuator | JP15700598 | 1998-06-05 | JPH11354851A | 1999-12-24 | YAMAMOTO TAKASHI |
| PROBLEM TO BE SOLVED: To obtain a piezoelectric actuator producing a large displacement and having a wide application. SOLUTION: A plurality of unimorph type diaphragm 1 formed by bonding a rectangular metal plate 3 to an electrode on one side of rectangular piezoelectric plate 2 are laminated in the thickness direction, and the end parts 3a, 3b in the length direction of the metal plates 3 of respective diaphragms 1 are connected alternately to obtain a bellows structure. When a DC field is applied between a lead wire 4 connected with the electrode on the other side of the piezoelectric plate 2 and the metal plate 3, the piezoelectric plate 2 extend or contracts in the length direction to generate a warp (displacement) in the diaphragm 1. Since the diaphragm 1 is cantilevered, displacement thereof can be increased. Since total displacement of the diaphragms 1 at respective stages can be obtained between the end part of the diaphragms 1 at the uppermost and lowermost stages, a large displacement can be obtained. COPYRIGHT: (C)1999,JPO | ||||||
| 263 | Piezoelectric/electrostriction film type actuator | JP15044298 | 1998-05-29 | JPH11346012A | 1999-12-14 | GENDOSHI TAKUYA |
| PROBLEM TO BE SOLVED: To provide a piezoelectric/electrostriction film type actuator capable of notably bending-displaced even in low voltage driving work by making a piezoelectric/electrostriction film finer in the heat-treating time to be almost completely sintered for displaying specific piezoelectric characteristics. SOLUTION: A piezoelectric/electrostriction film type actuator is composed by performing the following procedures, i.e., the condensed metallic grain whereto ceramics oxide adheres is dispersed into a conductive film 2 to be lamination- integrated into a thin-walled ceramic substrate 1 so as to make the surface of the conductive film irregular after lamination-integrating a piezoelectric/ electrostriction film 3 on this conductive film 2 furthermore, an electrode film 4 is lamination-integrated with the piezoelectric/electrostriction film 3. COPYRIGHT: (C)1999,JPO | ||||||
| 264 | Antenna switching device | JP6307699 | 1999-03-10 | JPH11340702A | 1999-12-10 | JACOB HERVE |
| PROBLEM TO BE SOLVED: To provide an antenna switching device between a transmission stage and a reception stage securing high frequency switching with small loss. SOLUTION: This antenna switching device between the output of the transmission stage and the input of the reception stage is provided with a piezoelectric actuator formed of two fixed plates 21 and 22 forming a capacitor and a movable contact point 23 composed of a piezoelectric material. The surfaces on an inner side of the plates 21 and 22 are locally coated with a metal so as to form an electric contact point and an electrode is provided on the movable contact point 23 so as to apply a control voltage capable of deforming the contact point. The deformation is generated between a rest position corresponding to the determined part of the plates 21 and 22 and a working position corresponding to the other determined part of the plates 21 and 22. The device is applied to a mobile telephone. COPYRIGHT: (C)1999,JPO | ||||||
| 265 | Ceramic element, manufacture of ceramic element, display device, relay device and capacitor | JP14617098 | 1998-05-27 | JPH11339561A | 1999-12-10 | TAKEUCHI YUKIHISA; KASHIWAYA TOSHIKATSU; TAKAHASHI NOBUO |
| PROBLEM TO BE SOLVED: To maintain displacement equal to that at the time of driving voltage application in a no-voltage load condition after the termination of the driving voltage application by analogically changing mechanical displacement depending on an applied voltage. SOLUTION: This ceramic element is composed by providing an actuator part body 26 having an antiferroelectric film 22 and a pair of electrodes 24a, 24b formed on one main plane (surface) of the antiferroelectric film 22, a vibration part 18 to support the actuator part body 26, and a fixed part 20 to support the vibration part 18 in a manner to make it vibrate, and is so structured additionally that the antiferroelectric film 22 after polarization has a region Zt of which average dielectric constant analogically increases depending on a voltage V applied to the pair of electrodes 24a, 24b. To be concrete, when it is assumed that the average film thickness of the antiferroelectric film 22 is (t) and the pitch between the pair of electrodes 24a, 24b is (p), the element is so structured as to satisfy a relationship of p/t<=2.5. | ||||||
| 266 | The piezoelectric / electrostrictive film type actuator | JP8263495 | 1995-04-07 | JP2826078B2 | 1998-11-18 | TAKEUCHI YUKIHISA; KIMURA KOJI |
| PURPOSE: To provide a piezoelectric/electrostrictive film type actuator capable of obtaining large displacement by relatively-low driving voltage, quick in responding and capable of generating a large force, and capable of being highly integrated. CONSTITUTION: The piezoelectric/electrostrictive drive part, having a construction obtained by laminating a first electrode film 4, a piezoelectric/ electrostrictive film 6, and a second electrode film 8 into layers successively, of a piezoelectric/electrostrictive film type actuator is made of a polycrystalline substance of ceramic material composed mainly of at least more than one kind of aluminum oxide, magnesium oxide, zirconium oxide, aluminum nitride, and silicon nitride. Besides, it is formed on a ceramic substrate 2 containing lead elements in the form of an oxide etc., at least in the grain boundary of at least a section for a piezoelectric/electrostrictive drive part to be formed of the polycrystalline substance. | ||||||
| 267 | Electromagnetic relay | JP3788397 | 1997-02-21 | JPH10241481A | 1998-09-11 | YAMAMOTO KUNIHIKO |
| PROBLEM TO BE SOLVED: To provide an electromagnetic relay in which the life is extended by deflecting a fixed contact plate in response to an applied voltage from the outside through a piezoelectric element when the deflection amount of the fixed contact plate detected through piezoelectric element becomes smaller than a predetermined value so as to secure the predetermined deflection amount of the fixed contact plate. SOLUTION: A fixed contact plate 10 and a moving contact plate 20 are respectively formed of conductive plates having a spring property. A fixed contact 1 is provided at the upper end part of the fixed contact plate 10, and a moving contact 2 facing to the fixed contact 1 is provided at the upper end part of the moving contact plate 20. After the moving contact plate 20 is driven toward a fixed contact plate 10 side by a drive member 4 so that the moving contact 2 is brought into contact with the fixed contact 1, the moving contact 2 is thrust toward a fixed contact 1 side by so-called an OT(over travel) amount so that both contacts 1, 2 are brought into contact with a predetermined contact pressure. Since a piezoelectric element 3 set on the fixed contact plate 10 generates a voltage in response to the deflection amount of the fixed contact plate 10, when the OT amount is reduced resulting from the wear of the contact or the like so that the voltage generated by the piezoelectric element 3 is reduced, by applying the voltage to the piezoelectric element 3 from outside, the fixed contact plate 10 is deflected so as to secure the predetermined OT amount. COPYRIGHT: (C)1998,JPO | ||||||
| 268 | Electrically controlled tripping mechanism | JP50374096 | 1995-06-30 | JPH10502488A | 1998-03-03 | パウエル、シモン |
| (57)【要約】 もどり止め機構であって、対向する側面を含む固定シ−ト部材を有する支持部材と、該固定シ−ト部材の一側面と摺動可能シ−ト部材との間に配置されており、第１弾性力を出す第１弾機部材と、さらに該固定シ−ト部材の他側面と第２摺動可能シ−ト部材との間に配置されており、該第１弾性力よりも小さい第２弾性力を出す第２弾機部材であって、当該弾性力は該第１及び第２摺動可能シ−ト部材にそれぞれ反対の方向に作用するように形成される第２弾機部材とを備える。 プッシュボタンは該第１弾性力に対向して、該固定シ−ト部材に対応する第１位置から第２位置まで該第１摺動可能シ−ト部材を移動するために、該第１摺動可能シ−ト部材に外力を加える事ができる。 もどり止め機構は、該第１摺動可能シ−ト部材が第２位置にあり、かつ、該第２摺動可能シ−ト部材が第１位置にある時、該第１摺動可能シ−ト部材と該第２摺動可能シ−ト部材とを接続する。 該第１摺動可能シ−ト部材及び第２摺動可能シ−ト部材がその後該プッシュボタンによって作動しない時、該第１摺動可能シ−ト部材が第１位置に戻り、該第２摺動可能シ−ト部材が該第１摺動可能シ−ト部材とともに第２位置に移動させられる。 この結果該第１弾性力の方向に該第１摺動可能シ−ト部材及び第２摺動可能シ−ト部材に加わる力は、該第１弾性力と第２弾性力との差である。 | ||||||
| 269 | The operation of the residual current device | JP50373896 | 1995-06-30 | JPH10502487A | 1998-03-03 | パウエル、シモン |
| (57)【要約】 本発明は、一個のプッシュボタンで動作の設定やテストを行う、プッシュボタン剰余電流装置に関する。 更に詳しく言うと、一回目のボタン押圧で、装置が正常に機能しているならばトリップするために、テストトリップが開始される。 更にボタンが押圧され、そして離されると、トリップ状態が発見されないと仮定して、装置は電流が流れることが可能な状態になる。 いったん装置に電流が流れると、装置にトリップさせる如何なる故障も、プッシュボタンの状態に関らず、ただちに電源が切れるという結果になる。 | ||||||
| 270 | Mechanical electric switch element | JP8077296 | 1996-03-07 | JPH09245564A | 1997-09-19 | SHIOMI HIROSHI |
| PROBLEM TO BE SOLVED: To open/close a large current with a large effective contact area, by including a drive element making two sheets of slide plates slide in a direction parallel to a surface, and sliding the slide plate in a direction arranging a conductor part and an insulation part by the drive element. SOLUTION: A first slide plate 1 comprises a conductive substrate 3 and a diamond contact film 4 formed on this substrate, a second slide plate 2 comprises a conductive substrate 5 and a contact film 6 formed on this substrate, diamond is essentially an insulating material. In order to totally drive the slide plate 2 relating to the slide plate 1, a drive element 30 is provided on the slide plate 1, a side surface of the element 30 is extended together in an end face of the slide plate 2. A conductive part 7, 9 of the contact film 4, 6, when in a position opposed to each other, are placed in a condition closing a switch. Oppositely, the conductive part 7, in the case of coming into contact with a mate side insulation part 10, and the conductive part 9, in the case of coming into contact with a mate side insulation part 8, are placed in a condition opening the switch. A current is interrupted by the insulation parts 8, 10. COPYRIGHT: (C)1997,JPO | ||||||
| 271 | Piezoelectric drive unit | JP22750286 | 1986-09-25 | JPH0773428B2 | 1995-08-02 | 洋 清水; 誠輝 石橋; 澄夫 菅原; 孝 高田 |
| 272 | Piezoelectric drive DC retained type relay | JP12596685 | 1985-06-10 | JPH0646535B2 | 1994-06-15 | カーマン・ピーター・ジヤーメイノ |
| 273 | Laminated piezoelectric actuator | JP32605691 | 1991-12-10 | JPH06120579A | 1994-04-28 | KONDO MASAHIRO |
| PURPOSE: To provide a reliable laminated piezoelectric actuator which does not give any to the life influence even when operated on a direct current or almost direct current drive voltage in a highly humid environment. CONSTITUTION: Piezoelectric ceramic thin plates 1 and internal electrode thin films 2A and 2B, of almost the same shape as the plates, are alternately superposed and integrated to obtain a laminated body 3. Each of the four corners of these layers, composed of the ceramic plates 1 and internal electrode films 2A and 2B, which form four ridges parallel with the direction of the lamination, is chamfered or rounded. The corner ends of each layer, where microcracks are densely distributed, are thus removed; therefore, the resultant actuators will not cause short circuits between the internal electrode films 2A and 2B due to microcrack. COPYRIGHT: (C)1994,JPO&Japio | ||||||
| 274 | Piezoelectric actuator | JP15142292 | 1992-05-19 | JPH05175563A | 1993-07-13 | NONAMI MITSUHARU; SHIBATA KATSUMI; TSUKIHANA MASASHI; MACHIDA MORINARI; KAWAMURA YUKINORI |
| PURPOSE: To obtain a large generated force at the point where displacement is large. CONSTITUTION: An actuator is constituted by bonding a piezoelectric element 2 to a beam 1b of a leaf spring 1 to which snap action characteristics are given by providing bent beams 1a and 1c at both ends of the straight beam 1b. When a voltage is applied to the piezoelectric element 2 along its polarizing direction while one end 1d of the leaf spring 1 of the actuator is cantilevered with a free end 1e being as an operation part, the piezoelectric element 2 permits the leaf spring 1 to bend, displacement occurring at the operation part 1e. At that time, the leaf spring 1 turns over at a snap action point to give spring force in the same direction as a generated load an the piezoelectric element 2, larger operational force thus obtained when compared with the case of signal piezoelectric element 2. COPYRIGHT: (C)1993,JPO&Japio | ||||||
| 275 | Piezoelectric/electrostrictive film type actuator | JP1117490 | 1990-01-20 | JPH03128681A | 1991-05-31 | TAKEUCHI YUKIHISA; KOMAZAWA MASATO; KIMURA KOJI |
| PURPOSE: To obtain a piezoelectric/electrostrictive film type actuator having the high speed of response and large generating force by laminating a first electrode film, a piezoelectric/electrostrictive film and a second electrode film onto a ceramic substrate. CONSTITUTION: A lower electrode film 4, a piezoelectric/electrostrictive film 6 and an upper electrode film 8 are laminated successively onto one surface of a ceramic substrate 2. The lower and upper electrode films 4, 8 are extended from the end section of the piezoelectric/electrostrictive film 6 respectively, lead sections 4a, 8a are shaped, and electricity is conducted through each electrode film 4, 8 through these lead sections 4a, 8a. The electric-field induced strain of the piezoelectric/electrostrictive film 6 is induced by conduction, and flexing displacement in the direction vertical to the board surface of the ceramic substrate 2 or generating force is developed by the transversal effect of the strain. Accordingly, large displacement is acquired at low driving voltage, and a piezoelectric/electrostrictive film type actuator, the speed of response of which is increased and the degree of integration of which can be improved, is obtained. COPYRIGHT: (C)1991,JPO&Japio | ||||||
| 276 | Displacement element and relay device using it | JP14522389 | 1989-06-09 | JPH0311516A | 1991-01-18 | UCHINO KENJI; YODA SEI |
| PURPOSE: To offer a displacement element of a little power consumption, little heat radiation and capable of holding its displaced state without using a holding device, and a relay device using it by utilizing a ferroelectrics shape-memory ceramic element which is digitally displaced by a phase change from antiferroelectric to ferroelectric phase induced by application of a predetermined electric field and which maintains its ferroelectric phase even after the electric field is cut off. CONSTITUTION: Shape-memory ceramic elements 1, 2 are formed and silver electrodes 3, 4, 5 are combined to each of the elements, and the two shape-memory ceramic elements are stuck to each other and are held by a holding member 6 whereby a displacement element 10 is manufactured. A voltage of about 500V is applied to only the shape-memory ceramic element 1 via electrodes 4, 5. The shape-memory ceramic element 1 is then digitally displaced in the X direction by a phase change from antiferroelectric to ferroelectric phase. Thereafter, even when the applied voltage is 0, the shape-memory ceramic element 1 will not return to its initial state but maintains its ferroelectric phase and holds its displaced state, and exhibits its shape memory property. In order to convert the shape-memory ceramic element to its initial state, a reverse voltage of about 100V must be applied. COPYRIGHT: (C)1991,JPO&Japio | ||||||
| 277 | Piezoelectric relay | JP14331888 | 1988-06-10 | JPH025325A | 1990-01-10 | MATSUMOTO HIROZO; KAWANAMI HIROSHI |
| PURPOSE: To enlarge the circuit opening strength and to improve the reliability of a relay by providing a bimorph consisting of a ferroelectric piezoelectric plate and an antiferroelectric piezoelectric plate changing phase to be a ferroelectric piezoelectric plate by application of a critical voltage. CONSTITUTION: A ferroelectric piezoelectric plate 11A composed of PbTiO 3- PbZrO 3-Pb(Sb,Nb)O 3 and an antiferroelectric piezoelectric plate 11B composed of Pb,Nb[(Zr,Sn)Ti]O 3 are adhered to the both surfaces of a metallic base plate 12 respectively to construct a bimorph. When the applied voltage is reached to a critical voltage, the phase of the said plate 11B is changed to be a ferroelectric piezoelectric plate and the plate is elongated to the longitudinal direction by generated polarization. Therefore, the contraction of the said plate 11A and the elongation of the said plate 11B are superposed and in addition the elongation of the said plate 11B due to the phase change is added. Thereby the displacement of the bimorph can be enhanced rapidly to contact a movable contact 15 to a fixed contact 16 to be in continuity. COPYRIGHT: (C)1990,JPO&Japio | ||||||
| 278 | Piezo-electric switch | JP20014087 | 1987-08-12 | JPS6388727A | 1988-04-19 | JIYON DEEBISU HAANDEN JIYUNIA; UIRIAMU POORU KOONRANPUFU; JIEEMUZU ERUUTSUDO KOORU; MAIKERU SUCHIYUAATO ADORAA |
| 279 | Piezoelectric relay switching circuit | JP30356986 | 1986-12-19 | JPS62157628A | 1987-07-13 | JIYON DEEBUISU HAANDOUN JIYUNI; UIRIAMU POORU KOONRANFU |
| 280 | Synchronous operation current switch gear | JP28684685 | 1985-12-19 | JPS61156619A | 1986-07-16 | JIYOOJI ARUBAATO FUAROORU |
QQ群二维码
意见反馈
意见反馈