Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8183750 | Resonator, conductive film layer and oscillator A resonator element includes: a resonating body having a first region and a second region, the first region receiving a compression stress or an extension stress by a vibration, the second region receiving an extension stress responding to the compression stress in ... | 05/22/2012 |
| 8174172 | Piezoelectric resonator plate, and piezoelectric resonator device A piezoelectric resonator device comprises a piezoelectric resonator plate, a base for holding the piezoelectric resonator plate, a lid for hermetically enclosing the piezoelectric resonator plate held on the base, and a support member made of a brittle material for... | 05/08/2012 |
| 8174171 | Piezoelectric vibrating devices having bisymmetric vibrating arms and supporting arms, and devices comprising same An exemplary tuning-fork type piezoelectric vibrating piece has at least a pair of vibrating arms extending from one end of a base portion in a certain longitudinal direction (e.g., Y-direction). Supporting arms extend from respective side edges of the base, outboar... | 05/08/2012 |
| 8169127 | Flexural vibration element and electronic component A flexural vibration element includes: a plurality of vibrating arms provided in parallel with each other; a connecting part connecting the vibrating arms; and one central supporting arm extending between the vibrating arms from the connecting part in parallel with ... | 05/01/2012 |
| 8134284 | Tuning-fork type piezoelectric vibrating pieces having similarly shaped vibrating-root and supporting root portions Piezoelectric vibrating pieces are disclosed. An exemplary piece includes a base and at least a pair of vibrating arms connected to the base. The vibrating arms extend from one end of the base in a first direction. A vibrating root portion is situated between the vi... | 03/13/2012 |
| 8120233 | Piezoelectric devices and methods for manufacturing same Methods are disclosed for manufacturing piezoelectric vibrating pieces and devices including such pieces. According to an embodiment of the method, a piezoelectric vibrating piece is produced from a piezoelectric wafer. To form the piece, a profile of the piezoelect... | 02/21/2012 |
| 8120234 | Piezoelectric frames and piezoelectric devices comprising same Piezoelectric frames are disclosed that include a tuning-fork type piezoelectric vibrating portion having a pair of vibrating arms extending from a base portion in a first direction (Y-direction). The vibrating arms have a first width W1. A respective excitat... | 02/21/2012 |
| 8110965 | Piezoelectric devices having improved impact resistance An exemplary piezoelectric vibrating device has a lid plate, a chip plate including a tuning-fork type vibrating piece surrounded by an outer frame, and a package base arranged where the chip plate is sandwiched between the lid plate and package base, and the three ... | 02/07/2012 |
| 8110966 | Piezoelectric frames and piezoelectric devices comprising same Piezoelectric frames are disclosed that include a tuning-fork type piezoelectric vibrating piece. The vibrating piece has at least a pair of vibrating arms that extend in a longitudinal direction (e.g., Y-direction) from a first end edge of a piezoelectric base, and... | 02/07/2012 |
| 8102103 | Tuning-fork resonator with grooves on principal surfaces A resonator having a base part; and a resonating arm that performs flexing vibration, the resonating arm part has two principal surfaces, a first groove provided on the one principal surface, a second groove provided in juxtaposition with the first groove on the oth... | 01/24/2012 |
| 8102102 | Thin film tuning-fork type inflection resonator and electric signal processing element A compact resonator has a wide bandwidth and a small variation of the specific vibration frequency. The resonator is a thin film tuning-fork type inflection resonator in which a thin film made of a piezoelectric material is formed on a substrate on which a lower ele... | 01/24/2012 |
| 8098002 | Silicon resonator of the tuning-fork type The invention relates to a silicon resonator (10) of the tuning-fork type in which the linear frequency drift depending on the temperature is compensated. The resonator includes a silicon base (14), a plurality of parallel arms (11, 12, 13) capa... | 01/17/2012 |
| 8093787 | Tuning-fork-type piezoelectric vibrating piece with root portions having tapered surfaces in the thickness direction Tuning-fork-type crystal vibrating pieces are disclosed that have a base and a pair of vibrating arms extending from one side of the base in a designated longitudinal direction. A root portion is situated between the vibrating arms, and includes a first taper surfac... | 01/10/2012 |
| 8089202 | Piezoelectric vibrating reed, piezoelectric vibrator, oscillator, electronic device, radio-controlled clock, and method for manufacturing piezoelectric vibrating reed Providing a piezoelectric vibrating reed which has low disconnection possibility and ensures reliability for stable operation without requiring strict exposure position accuracy. A piezoelectric vibrating reed 1 including: a piezoelectric plate which includes... | 01/03/2012 |
| 8080925 | Inertial sensor with dual cavity package and method of fabrication Inertial sensor having a body with first and second cavities on opposite sides thereof, a sensing element in the first cavity, electronic circuitry in the second cavity, electrical conductors interconnecting the sensing element and the circuitry, and leads connected... | 12/20/2011 |
| 8076830 | Piezoelectric vibrating pieces, and piezoelectric vibrators and oscillators comprising same Piezoelectric vibrating pieces are disclosed that include a base portion and first and second vibrating arms extending in a longitudinal direction from the base portion. Each vibrating arm has first and second main surfaces, a first groove on the first main surface,... | 12/13/2011 |
| 8067880 | Flexural vibration element and electronic component A flexural vibration element includes: a plurality of vibrating arms provided in parallel with each other; a connecting part connecting the vibrating arms; and one central supporting arm extending between the vibrating arms from the connecting part in parallel with ... | 11/29/2011 |
| 8063545 | Wafer, wafer polishing apparatus, wafer polishing method, method of fabricating piezoelectric vibrator, piezoelectric vibrator, oscillator, electronic apparatus and radiowave timepiece To provide a wafer preventing a breakage of a crack or a chip off from being brought about in a polishing step and a polishing apparatus and a polishing method of polishing the wafer, there is provided a wafer in a shape of a plate substantially in an angular rectan... | 11/22/2011 |
| 8063546 | Vibrator comprising two X-cut crystal substrates with an intermediate electrode A vibratory structure includes: a first X-cut crystal substrate; a second X-cut crystal substrate stacked on the first X-cut crystal substrate so that the x-axis of the second X-cut crystal substrate is parallel to the x-axis of the first X-cut crystal substrate; a ... | 11/22/2011 |
| 8053957 | Piezoelectric vibrating piece having arm ends with excitation electrodes of opposite polarity and piezoelectric vibrator, oscillatory, electronic apparatus and radio wave timepiece having same To achieve small-sized formation by shortening a total length after ensuring a length of a base portion capable of sufficiently reducing vibration leakage, there is provided a piezoelectric vibrating piece 2 including a piezoelectric plate 10 including... | 11/08/2011 |
| 8053958 | Piezoelectric resonator element, piezoelectric resonator, and acceleration sensor A piezoelectric resonator element includes: a resonating arm extending in a first direction and cantilever-supported; a base portion cantilever-supporting the resonating arm; and an excitation electrode allowing the resonating arm to perform flexural vibration in a ... | 11/08/2011 |
| 8018127 | Flexural resonator element and flexural resonator for reducing energy loss due to heat dissipation A flexural resonator element includes a base body and a beam with a groove and a through-hole, the beam being extended in a Y direction from the base body and flexurally vibrating in an X direction orthogonal to the Y direction, the groove being formed on a surfaces... | 09/13/2011 |
| 8004165 | Tuning fork oscillating piece, tuning fork oscillator, and acceleration sensor A tuning fork oscillating piece includes: a base; a pair of oscillating arms extending from the base in directions substantially parallel with each other; a drive piezoelectric element provided at least on one main surface or side surface of each of the oscillating ... | 08/23/2011 |
| 7986077 | Tuning fork type quartz piece and oscillator comprising such tuning fork type quartz piece Grooves (2a, 3a) are formed in the tines (2, 3) of an oscillator, side surface electrodes (2e, 3e) are formed on the side surfaces of the tines, and groove electrodes (2d, 3d)... | 07/26/2011 |
| 7982374 | Piezoelectric vibrating piece with extended supporting arms Piezoelectric vibrating pieces are disclosed made of a piezoelectric material to be mounted in a package. A representative piece includes a base formed of a piezoelectric material, having first and second ends, extending between the ends in a length direction, and h... | 07/19/2011 |
| 7973458 | Piezoelectric vibrating pieces having progressively narrowed vibrating arms An exemplary piezoelectric vibrating piece comprises a base formed of a piezoelectric material; and a pair of vibrating arms extending from one end of the base in a designated direction; wherein the vibrating arm comprises an arm portion in which only the inner side... | 07/05/2011 |
| 7948157 | Piezoelectric oscillator having a tuning fork piezoelectric vibrating piece A piezoelectric oscillator which can conduct fine trimming adjustment and adjust frequencies highly precisely, particularly with no use of an expensive laser trimming apparatus with a small spot diameter, and a method of the same are provided. The method includes: a... | 05/24/2011 |
| 7944132 | Tuning-fork resonator with grooves on principal surfaces A resonator having a base part; and a resonating arm that performs flexing vibration, the resonating arm part has two principal surfaces, a first groove provided on one principal surface, a second groove provided in juxtaposition with the first groove on the other p... | 05/17/2011 |
| 7944131 | Quartz crystal unit, quartz crystal oscillator and manufacturing method of the same A quartz crystal unit comprises a quartz crystal tuning fork resonator capable of vibrating in a flexural mode of an inverse phase and having at least one groove having at least one stepped portion formed in at least one of opposite main surfaces of each of first an... | 05/17/2011 |
| 7944130 | Multi-cantilever MEMS sensor, manufacturing method thereof, sound source localization apparatus using the multi-cantilever MEMS sensor, sound source localization method using the sound source localization apparatus Disclosed herein is a multi-cantilever MEMS sensor functioning as a mechanical sensor having a plurality of cantilevers, replacing a conventional DSP based sound source localization algorithm and reducing production cost when the MEMES sensor applied to mass-produce... | 05/17/2011 |
| 7939995 | Piezoelectric resonator in a small-sized package The packaged piezoelectric resonator comprises a case (170; 270) with a lid (140; 240) and a piezoelectric resonator element (110) housed in said case, The piezoelectric resonator element includes a planar tuning-fork-shaped part with two parall... | 05/10/2011 |
| 7936115 | Piezoelectric resonator element, piezoelectric resonator, and acceleration sensor A piezoelectric resonator element includes: a resonating arm extending in a first direction and cantilever-supported; a base portion cantilever-supporting the resonating arm; and an excitation electrode allowing the resonating arm to perform flexural vibration in a ... | 05/03/2011 |
| 7932664 | Flexural vibration piece A resonator includes a base portion and a vibration arm. The vibration arm has first and second main faces opposite each other, the main faces have first and second grooves, the first groove has a plurality of first groove portions which are divided in the longitudi... | 04/26/2011 |
| 7915793 | Thin film tuning-fork type inflection resonator and electric signal processing element A compact resonator has a wide bandwidth and a small variation of the specific vibration frequency. The resonator is a thin film tuning-fork type inflection resonator in which a thin film made of a piezoelectric material is formed on a substrate on which a lower ele... | 03/29/2011 |
| 7915794 | Piezoelectric device having a tension stress, and angular velocity sensor A piezoelectric device includes a piezoelectric film and an electrode film. The piezoelectric film is constituted of lead zirconium titanate represented by Pb1+X(ZrYTi1−Y)O3+X, where X is 0 or more and 0.3 or less and Y ... | 03/29/2011 |
| 7906890 | Piezoelectric vibrating pieces, frames, and devices Piezoelectric vibrating pieces are disclosed that have a base and a pair of vibrating arms extending from one end of the base in a designated direction. A respective groove is defined in each of the upper and lower surfaces of each vibrating arm. The grooves extend ... | 03/15/2011 |
| 7902731 | Piezoelectric resonator device and method for manufacturing the same With a crystal vibrator, a package (housing) is produced by joining a base to a lid, and an internal space is formed within this package. A crystal resonator plate is held on the base in this internal space, and the internal space of the package is sealed airtight. ... | 03/08/2011 |
| 7888850 | Tuning-fork type piezoelectric unit An object is to provide a tuning-fork type piezoelectric unit in which as well as maintaining the vibration characteristics in the stationary condition when miniaturized, the bond strength is maintained, and also the frequency change for before and after a drop impa... | 02/15/2011 |
| 7872404 | Piezoelectric vibrating reed device having improved electrode design A piezoelectric vibrating reed includes a piezoelectric plate made of a piezoelectric material, a pair of exciter electrodes formed on outer surfaces of the piezoelectric plate and configured to vibrate the piezoelectric plate when a predetermined voltage is applied... | 01/18/2011 |
| 7863804 | Piezoelectric vibration element and piezoelectric device A piezoelectric vibration element having a favorable drive level characteristic for miniaturization, and a piezoelectric oscillator. The piezoelectric vibration element includes a base made of a piezoelectric material, a plurality of vibration arms extended from the... | 01/04/2011 |
