1214results about How to "Containment leak" patented technology

A wiring board includes a dielectric substrate, a signal transmission line formed on one surface of the dielectric substrate, a grounded layer formed on the other surface of the dielectric substrate, and a connection portion for connecting portion for connecting the signal transmission line to a waveguide, the connection portion being formed on the grounded layer. The grounded layer has a slot at a position opposed to an end of the signal transmission line. The connection portion includes a first dielectric portion disposed to cover the slot of the ground layer, a second dielectric portion laminated on the first dielectric portion, and a patch conductor provided at a position opposed to said slot on an interface between the first dielectric portion and the second dielectric portion. The wiring board enables the signals to be efficiently transmitted from the signal transmission line to the waveguide with a small loss and a small reflection.

Disclosed is a light transmitting liquid crystal display apparatus used with advantage with a television receiver having a large-sized display not less than 30 inch. A backlight section (3) sending out illuminating light is formed by a plural number of rows made up of many light emitting units (15) arranged on the back surface of a liquid crystal display panel (8). Each light emitting unit includes many LED units (18) mounted on an interconnection substrate (17) and is mounted in this state on a heat dissipating plate (28). A reflecting section (6) for reflecting the light radiated from each LED is formed by a large number of reflective sheet pieces (27), assembled from one heat emitting unit to another, and a reflective plate (26) secured to reflecting plate supports (40) formed on the heat dissipating plate.

According to one embodiment of the invention, a pattern of a mask is transferred onto a subate via a projection optical system using an energy beam by placing a substrate on side of an energy beam emitting end portion of projection optical system, when the substrate is exposed, and placing an object on the side of the energy beam emitting end portion of the projection optical system in place of the substrate when the substrate is exchanged. This can adequately remove a light absorptive substance from the region near an output end of the projection optical system and can maintain the gas state even at a time of moving or replacing the substrate.

Each permanent magnet formed in an open-letter shape is divided into a plurality of parts, the divided magnets are respectively fitted in open letter-shaped inserting portions, and ribs are respectively provided in dividing portions of the permanent magnets. Accordingly, it is possible to prevent the breakage of pole connecting portions at an outermost periphery of the rotor as adjacent inner peripheral-side permanent magnets directly come into contact with and push the outer peripheral-side permanent magnets. Alternatively, an annular nonmagnetic material is provided on an outer peripheral portion of the rotor so as to cover the open letter-shaped permanent magnets and magnetic material portions inside the open-letter portions, whereby the rotor core is made resistant against breakage, and the flux leakage is minimized.

An aoutofocus actuator is provided with a yoke 30 that is constructed so as to receive a coil 20. The yoke 30 includes a plurality of permanent magnets 40 that are positioned so as to face the coil 20 with a space left therebetween. A ring-shaped magnetic member 50 is disposed on the lower surfaces of these permanent magnets 40, whereby preventing the magnetic flux from being leaked out downwards from the permanent magnets 40 at the open side of the yoke 30 which is opposite to the connecting portion 34. According to this, it becomes possible to enhance a driving force of the actuator.

Provided is a relief valve that is small in size and has a simple structure in which a flow path is provided so as to penetrate a diaphragm or a support portion of the diaphragm, and an outlet is located at an opposite side of an inlet through the diaphragm. The relief valve for pressure adjustment is made of a semiconductor wafer and operates in a case where a pressure at a fluid inlet is higher than a pressure at a fluid outlet by a pressure higher than a set pressure value, the relief valve including a flow path communicating the fluid inlet with the fluid outlet and a diaphragm for opening and closing the flow path by deformation utilizing a differential pressure between the fluid inlet and the fluid outlet, wherein the flow path penetrates the diaphragm or is disposed at a side surface of the diaphragm, the diaphragm and the valve seat are in contact with each other, and the flow path is opened and closed by deformation of the diaphragm.

A rotor (10) for a rotary electric machine has a plurality of magnetic poles (24) provided at intervals, in a circumferential direction, at the outer periphery of a rotor core (12). Each of the magnetic poles (24) has a first permanent magnet (26) buried in the center of the magnetic pole, and a pair of second permanent magnets (28) that are buried on both sides of the first permanent magnet (26) in the circumferential direction, and that are disposed such that a mutual spacing between the pair of the second permanent magnets (28) becomes narrower inward in the radial direction. A narrowest spacing between the pair of second permanent magnets (28) is set to be wider than a longitudinal-direction width of the first permanent magnet (26) in a magnetic path region (30) that is defined by the first permanent magnet (26) and the pair of second permanent magnets (28).

Exemplary embodiments provide a piezoelectric resonator element, to reduce the reaching of an attenuating vibration of a main vibration to a marginal edge of the piezoelectric resonator element, as well as to stabilize an oscillating-frequency without worsening the CI value, nor inducing another vibration mode. The piezoelectric resonator element having a thickness shear vibration as a main vibration, a first groove and a second groove formed so as to surround the center part of a main surface, and the thickness at the first groove and the second groove structured to be between 70% to 96%, inclusive, of the thickness of the center part of the resonator element.

The invention discloses a harmonic analysis method based on Kaiser self-convolution window dual-spectrum line interpolation FFT (Fast Fourier Transform) and a device thereof. The method comprises the following steps of sampling a signal: sampling a time-domain continuous signal, and discretizing to obtain an infinitely long discrete sequence; windowing a four-order Kaiser self-convolution window function: performing four-order Kaiser self-convolution window operation on the infinitely long discrete sequence; performing N-point FFT on a windowed and truncated signal to obtain the discrete spectrum of the signal; determining the peak parameter of the discrete spectrum: searching the local spectrum peak of each integer harmonic frequency around the integer harmonic frequency; and calculating a harmonic parameter: solving a coefficient alpha by adopting a discrete spectrum interpolation correction formula based on an LSM (Least Square Method), and calculating parameters such as a harmonic frequency, an amplitude, an initial phase angle and the like. Due to the adoption of the method, the fundamental and harmonic components of a tested signal can be detected rapidly and accurately, and accurate frequency measurement is realized; and the method is convenient for implementing an embedded system, and the tested signal can be detected continuously for a long time.

Disclosed is a dielectric resonator antenna. The dielectric resonator antenna includes: a dielectric resonator; an antenna layer formed inside the dielectric resonator, and including a plurality of vias positioned at a surrounding area of the dielectric resonator; a metal pattern forming an opened surface in an upper portion of the antenna layer; a dielectric layer configured to cover the metal pattern on the dielectric resonator; an internal ground pattern including a coupling aperture for inputting a signal into the dielectric resonator under the dielectric resonator; and a feeding layer including a strip transmission line for transmitting a signal to the dielectric resonator, and positioned under the antenna layer.

The absorbent article includes a chassis, a crotch region, an absorbent body, and an elastic member arranged along a side edge in width direction of the crotch region. The oblong absorbent body arranged in the crotch region includes a first narrow width section, a second narrow width section, a center low rigidity section formed along a center line that halves the absorbent article in the width direction and a pair of lateral low rigidity sections provided at both sides of the center low rigidity section in the width direction with a substantially equal interval. Skin contacting face-side sheets and non-skin contacting face-side sheets 6 and 10 are arranged in the crotch region. The initial tensile strength of the skin contacting face-side sheets is lower than that of the non-skin contacting face-side sheets or that of the chassis 2.

An antenna apparatus has a ground plane and a traveling-wave linear antenna The ground plane has a dielectric layer and metallic plates disposed on the dielectric layer. The plates placed on a front side of the ground plane act as a band gap surface. The dielectric constant and thickness of the dielectric layer, the number of plates and the width of spaces among the plates are adjusted, so that the band gap surface prevents propagation of electromagnetic waves within a specific frequency band. The antenna is disposed over the band gap surface on the front side of the ground plane to be spaced away from the band gap surface. The antenna radiates electromagnetic waves of an operational frequency within the specific frequency band in response to an alternating current of the operational frequency fed to the linear antenna.