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| Number | Title | Issue Date |
| 7358652 | Surface mount type piezoelectric vibrator, oscillator, electronic device, and radio clock A surface mount type piezoelectric vibrator comprises a piezoelectric vibrator piece having an electrode, an airtight container made of glass or a ceramic material for encapsulating the piezoelectric vibrator piece, and an external terminal formed on an exterior sur... | 04/15/2008 |
| 7342348 | Micro displacement mechanism and magnetic disk apparatus A micro displacement mechanism minutely displaces an object to be driven. The micro displacement mechanism includes a stationary part and an actuator fixed to the stationary part so as to rotatably support the object to be driven. The actuator includes a pair of pie... | 03/11/2008 |
| 7253553 | Electronic component Provided is an electronic component permitting lead wires or the like to be securely soldered to a plurality of respective terminal electrodes connected to electroconductive members in through holes. On a surface 7a of a stack-type piezoelectric device... | 08/07/2007 |
| 7150386 | Systems and structures for supporting vibrators An object of the present invention is to provide a novel system for supporting a vibrator having a terminal for electrical connection so that the vibrator may be miniaturized and the deviation of vibration property among vibrators mounted on the supporting systems m... | 12/19/2006 |
| 7148609 | Structures for supporting vibrators An object of the present invention is to provide a novel structure of supporting a vibrator having a terminal for electrical connection so that the vibrator can be miniaturized, and the driving impedance can be made constant in a wide temperature range to reduce the... | 12/12/2006 |
| 7005946 | MEMS piezoelectric longitudinal mode resonator A longitudinal mode resonator that includes a substrate and a bar that is suspended relative to the substrate. The bar is suspended such that it is free to expand and contract longitudinally in response to the application of an electric field across its thickness. T... | 02/28/2006 |
| 6954117 | Electronic component including piezo-electric resonator mounted by face-down bonding with a required die shear strength In an electronic component having a piezo-electric resonator 10 formed on an element substrate 11 and obtaining a signal having a predetermined resonant frequency by a bulk wave propagating within a piezo-electric film 15, a mounting substrate | 10/11/2005 |
| 6924588 | Piezoelectric crystal material and piezoelectric resonator In a gallium phosphate crystal, a crystallographic Y-axis and a Z-axis that have been rotated about an X-axis counterclockwise through an angle α is referred to as a Y′-axis and a Z′-axis, respectively, where the angle α is in a range from 10° to 20°. A piez... | 08/02/2005 |
| 6822375 | VIBRATING GYROSCOPE AND ELECTRONIC DEVICE USING THE SAME HAVING A DRIVING CIRCUIT, A DETECTION CIRCUIT AND FOUR SUPPORTING MEMBERS WITH DIFFERENT RIGIDITIES, DIFFERENT SHAPES, DIFFERENT CROSS SECTIONS, DIFFERENT MATERIALS AND DIFFERENT LENGTHS A vibrating gyroscope includes a vibrator having a longitudinal direction and being capable of vibrating in a bending mode in a bending direction perpendicular to the longitudinal direction. The vibrator has first and second nodes which elongate in a direction perpe... | 11/23/2004 |
| 6784598 | Electronic component and method for forming substrate electrode of the same An electronic component includes a case substrate. Substrate electrodes having a substantially spherical outer surface are disposed on at least a first principal surface of the case substrate. A piezoelectric resonator is mounted on the case substrate such that the ... | 08/31/2004 |
| 6629343 | Method for fabricating a pressure-wave sensor with a leveling support element A method for fabricating a pressure-waveform sensor with a leveling support element. One embodiment provides a pressure-waveform sensor having a housing, a support element, and a piezoelectric element having a first end secured between the support element... | 10/07/2003 |
| 6463787 | Mounting for a quartz crystal In order to achieve reproducible vibration excitation of a quartz crystal even under the technical conditions which prevail when it is used for monitoring electroplating baths, a mounting for the quartz crystal 7 is proposed. The mounting for the quartz c... | 10/15/2002 |
| 6445254 | Crystal oscillator and method of bonding IC chip useful for fabricating crystal oscillator There is provided a crystal oscillator in which a crystal blank and an integrated circuit (IC) chip are accommodated in a vessel and the IC chip is fixed through a bump to the bottom surface of the vessel by means of ultrasonic thermocompression bonding. ... | 09/03/2002 |
| 6288478 | Vibrating gyroscope A vibrating gyroscope includes a vibrator having a node and a support member having a thin flexible portion and an expanded portion which is connected to the thin flexibly portion and has a larger area than the thin flexible portion. The expanded portion ... | 09/11/2001 |
| 6127771 | Multi-layer piezoelectric transformer mounting device A contact device for securely and reliably attaching electrical leads to a laminated multi-layer piezoelectric transformer and comprising a pair of conductive lead attachment plates, disposed on opposite sides of the laminated multi-layer piezoelectric tr... | 10/03/2000 |
| 6111338 | Acceleration sensor and method for producing the same An acceleration sensor includes: a piezoelectric vibrator including a piezoelectric element having a first principal surface and a second principal surface opposed each other, a first and a second electrode formed on the first and the second principal sur... | 08/29/2000 |
| 6093997 | Embedded piezoelectric resonator A piezoelectric resonator (12) is embedded within an electrically insulating substrate assembly (36), such as a multilayer printed circuit board. Electrical conductors (22,24) extend from electrodes of the resonator (12) through holes (32) in upper and lo... | 07/25/2000 |
| 6054798 | Piezoelectric transformer with an improved armor case A piezoelectric transformer includes a molded package having first and second inner walls facing each other, a plurality of pairs of projections provided on the first and second inner walls, and a piezoelectric transformer element mechanically supported b... | 04/25/2000 |
| 5982254 | Ladder filter having an optimal arrangement of piezoelectric resonators in a case A highly reliable ladder filter has a simple structure and is adapted to be readily assembled automatically for less cost. The ladder filter includes a case including storage sections which are adjacent to each other. A first series piezoelectric resonato... | 11/09/1999 |
| 5920242 | Multielement-type piezoelectric filter with through-hole connection of resonators to a base substrate circuit A multielement-type piezoelectric filter capable of facilitating assembly and having a reduced size. The base substrate carries a conduction circuit. An input terminal portion, an output terminal portion and a ground terminal portion are formed on a botto... | 07/06/1999 |
| 5889358 | Vibration gyroscope In a vibration gyroscope 1, a vibrator 2 is mounted to a mounting substrate 7 through support pins 6a and 6b. The mounting substrate 7 and a support substrate 10 are disposed opposite by inserting protrusions 11a and 11b of the support substrate 10 into s... | 03/30/1999 |
| 5880553 | Electronic component and method of producing same An electronic component has a substantially reduced size and is adapted to be produced at low costs without variation in superior quality of the component because of the ease of achieving electrical connection between a piezoelectric element and a electro... | 03/09/1999 |
| 5847491 | Piezoelectric transformer A piezoelectric transformer element 1 is supported by a plurality of contact pins 5b provided on a printed wiring board 6. The contact pins are directly contacted to lower electrodes of the piezoelectric transformer element at its nodal points. An insulat... | 12/08/1998 |
| 5747916 | Packaged piezoelectric transformer unit In a piezoelectric transformer unit which transforms an input voltage into an output voltage and which includes a piezoelectric transformer element driven by high electric power, a package is provided to accommodate the piezoelectric transformer element t... | 05/05/1998 |
| 5705880 | Piezoelectric device An electronic device which has piezoelectric resonators and terminals piled in a box-like case. The electronic device has a couple of terminals, each of which has a contact portion and a junction portion extending from the contact portion. In the case, th... | 01/06/1998 |
| 5635647 | Piezoelectric vibrator A vibrating gyroscope 10 includes a piezoelectric vibrator 12. The piezoelectric vibrator 12 includes a vibrating body 14 having a regular triangular prism shape. Grooves 16 are formed on one side face of the vibrating body 14 along its width direction. T... | 06/03/1997 |
| 5569969 | Vibrator and vibratory gyroscope using the same The vibrator includes for example, a triangular prism shaped vibrating body. On each of three side faces of the vibrating body, piezoelectric elements are formed respectively. The vibrating body makes bending vibration by giving a driving signal to one or... | 10/29/1996 |
| 5521457 | Holding structure for a piezoelectric vibrator Protrusions made of an electrically conductive material such as a metal or ceramic are formed around a node point or a node line of vibrations of a piezoelectric plate on two principal planes thereof by a spraying process. The piezoelectric plate is held ... | 05/28/1996 |
| 5430342 | Single bar type vibrating element angular rate sensor system An angular rate sensor system [10] comprising a vibratory sensing element [12] and signal processing circuit [14]. The element [12] is preferably a polymorphic rectangular bar fabricated from two layers of piezoceramic material [26, 28] divided by a thin ... | 07/04/1995 |
| 5256929 | Vibrator support structure A vibrator support structure for a vibrator having a vibrating body comprises a support stand, a first damper material disposed on top of the support stand, and a first substrate disposed on top of the first damper material. In addition, the vibrator supp... | 10/26/1993 |
| 5254898 | Vibrator A vibrator is disclosed having a vibrating body with a polygonal lateral cross-section. Two piezoelectric elements are disposed on nonparallel side surfaces of the vibrating body. A support structure is provided which supports the vibrating body at two su... | 10/19/1993 |
| 5250870 | Ultra-thin surface mount crystal package An ultra thin piezoelectric quartz crystal package can be realized by using adhesive dollops to compliantly mount a piezoelectric device within a thin package. The adhesive dollops maintain spacing between the upper and lower surfaces of the piezoelectric... | 10/05/1993 |
| 4992693 | Piezo-resonator A piezo-resonator comprises a supporting frame having a recess for attaching a piezoelectric resonator element. This recess consists of three portions, that is, a central portion, a pair of connecting portions which are outside of the central portion and ... | 02/12/1991 |
| 4767967 | High voltage generating device A high voltage generating device with a PZT element is disclosed. The device includes an energization control unit for generating an energization voltage, a PZT element unit for performing voltage conversion in response to an output from the energization ... | 08/30/1988 |
| 4639698 | Ceramic electronic filter A ceramic filter with planar, piezoelectric-type resonators and planar inputting, outputting, and grounding terminal boards arranged in parallel relationship in an insulating case with respective edges extending toward an open case side. Terminal legs ext... | 01/27/1987 |
| 4608509 | Length polarized, end electroded piezoelectric resonator A piezoelectric resonator utilizing the longitudinal vibration mode of piezoelectric ceramics. Exciting electrodes are formed on the lengthwise opposite end surface of the piezoelectric ceramic. Lengthwise extending surfaces of the piezoelectric ceramic a... | 08/26/1986 |
| 4584499 | Autoresonant piezoelectric transformer signal coupler A piezoelectric transformer signal coupler utilizes a drive circuit including an oscillator constructed to excite the primary of a piezoelectric transformer at its characteristic anti-resonant frequency. Positive feedback signals modulated by the time dom... | 04/22/1986 |
| 4494033 | Thin lead suspension for a piezoelectric resonator A mini-oscillator assembly (20) is formed by initially bonding ribbon leads (34) to contact pads (32) on a planar substrate (26) of a hybrid integrated circuit device (22) such that the leads project from the substrate in the plane thereof. Inverted V-sha... | 01/15/1985 |
| 4418299 | Face-shear mode quartz crystal vibrators and method of manufacture A miniaturized face-shear mode quartz crystal vibrator and method of manufacture is provided. The vibrator is formed from a Y-cut quartz crystal plate less than 500 μm thick which has been rotated between 45° to 55° about the X-axis. A plurality of vib... | 11/29/1983 |
| 4410827 | Mode coupled notched tuning fork type quartz crystal resonator A mode coupled tuning fork type quartz crystal resonator is mounted to a plug using support members of selected contour and dimensions to prevent acoustic energy loss from the plug and to avoid reduction in Q factor. A bend of 180 degrees in the support m... | 10/18/1983 |
