Patent application number | Description | Published |
20110248133 | DEVICE FOR MOUNTING WIRELESS DEVICE CASE - First mounting ring ( | 10-13-2011 |
20120313824 | RADIO DEVICE - A radio device of the present invention includes a radiation conductor which converts a radio frequency signal into an electric wave and radiates the electric wave; a circuit board electrically connected to the radiation conductor and incorporating an electric circuit for supplying the radio frequency signal to the radiation conductor a planar grounded conductor electrically connected to the electric circuit on the circuit board and placed such that the grounded conductor faces the radiation conductor, the grounded conductor constituting a ground of the radiation conductor; and a resin-made casing for accommodating the radiation conductor, the circuit board and the grounded conductor; wherein the grounded conductor, the circuit board and the radiation conductor are placed in this order in a thickness direction of the circuit board. | 12-13-2012 |
20130255786 | FLOW CONTROL VALVE - A flow control valve includes a light emitting section for emitting light; a light receiving section disposed so as to face the light emitting section, for detecting the amount of light received from the light emitting section; and a valve element for opening and closing a passage, wherein the valve element or a light blocking section secured to the valve element moves in a transverse direction between the light emitting section and the light receiving section as the passage is opened or closed, an amount of light received by the light receiving section from the light emitting section varies in accordance with the position of the valve element, and a position of the valve element is detected based on the amount of light received by the light receiving section. | 10-03-2013 |
20130306893 | SHUTOFF VALVE DEVICE - A shutoff valve according to the present invention includes: a motor configured to cause a rotating shaft to rotate; a lead screw formed on the rotating shaft; a lead nut into which the lead screw is screwed; and a valve element configured to block a passage, the valve element being configured to move in an axial direction in accordance with rotation of the rotating shaft. A dry lubricating coating is formed on a contact surface where the lead screw and the lead nut come into contact with each other. A thread pitch of the lead screw is set such that a current applied to the motor, the current being in relation to an inductance of the motor, is in a range that does not cause explosion of the fuel gas and that allows thrust force necessary for moving the valve element to be obtained. | 11-21-2013 |
Patent application number | Description | Published |
20110274576 | METHOD FOR PRODUCING DUST CORE - An object of the present invention is to provide a method for producing a dust core wherein generation of iron oxide at grain boundaries in the dust core is unlikely to take place upon annealing of the dust core subjected to compaction, thus allowing excellent electromagnetic characteristics to be realized. Also, the following is provided: a method for producing a dust core, which comprises: a step of molding a magnetic powder comprising a powder for a dust core formed with an iron-based magnetic powder coated with a silicone resin into a dust core via compaction; and a step of annealing the dust core via heating so as to cause the silicone resin contained in the dust core to be partially formed into a silicate compound, wherein annealing of the dust core is carried out at a dew point of an inert gas of −40° C. or lower in an inert gas atmosphere in the annealing step. | 11-10-2011 |
20110284794 | METHOD OF MANUFACTURING POWDER FOR DUST CORE, DUST CORE MADE OF THE POWDER FOR DUST CORE MANUFACTURED BY THE METHOD, AND APPARATUS FOR MANUFACTURING POWDER FOR DUST CORE - To provide a method of manufacturing a powder for dust core capable of preventing generation of secondary particles during a siliconizing treatment and improving quality and productivity of the powder for dust core, a dust core made of the powder for dust core manufactured by the method, and an apparatus for manufacturing the powder for dust core, of a powder mixture comprising a soft magnetic metal powder and a powder for siliconizing including silicon dioxide, only the soft magnetic metal powder is heated by induction heating to transmit heat from the surface of the soft magnetic metal powder to the powder for siliconizing, thereby releasing a silicon element from the powder for siliconizing and diffusing and impregnating the silicon element into the surface of the soft magnetic metal powder to form a silicon impregnated layer. | 11-24-2011 |
20120012777 | POWDER FOR DUST CORE, DUST CORE MADE OF THE POWDER FOR DUST CORE BY POWDER COMPACTION, AND METHOD OF PRODUCING THE POWDER FOR DUT CORE - A powder for dust core including a soft magnetic metal powder and a silicon impregnated layer made of silicon concentrated in a surface layer of the soft magnetic metal powder, in which a silicon dioxide powder is diffusion-bonded to a surface of the silicon impregnated layer to form a diffusion-bonded part while a part of the silicon dioxide powder is impregnated and diffused in the silicon impregnated layer and the other part of the same protrudes from the surface of the silicon impregnated layer. The diffusion-bonded part creates a gap with respect to another powder for dust core, thereby providing increased specific resistance. | 01-19-2012 |
20130002384 | REACTOR AND REACTOR MANUFACTURING METHOD - The disclosed reactor has a case and a cylindrical molded coil assembly which is disposed inside of the case and which is formed by covering a coil with a resin, wherein the coil assembly is sealed by an iron powder mixed resin to which iron powder has been admixed. The reactor has a pillar provided as a single body with the case, and one or multiple ring-shaped core members. The ring-shaped core members are disposed outside the outer surface of the pillar such that the pillar is inserted inside the inner surface of said ring-shaped core members, and the assembly coil is disposed outside the outer surface of the ring-shaped core members such that the ring-shaped core members are inserted inside the inner surface of said coil assembly. The ring-shaped core members are sealed by means of the aforementioned iron powder-mixed resin. | 01-03-2013 |
20130147081 | METHOD OF PRODUCING POWDER MAGNETIC CORE AND METHOD OF PRODUCING MAGNETIC CORE POWDER - The invention includes: powder preparation step of obtaining magnetic core powders by mixing, of magnetic powders with thermosetting resin powders in hot state; powder filling step of filling the obtained magnetic core powders into a die; a compaction step of compacting magnetic core powders; and compact heating step of heating, compacts to the elevated temperature state at which the thermosetting resin hardens after compaction. | 06-13-2013 |
20130336832 | REACTOR DEVICE AND METHOD FOR MANUFACTURING REACTOR DEVICE - A reactor core, which has a pair of press surfaces (a-b planar surfaces) formed by compression molding with an edge part of each of the press surfaces being plastically formed by pressure treatment, is disposed in a direction in which a magnetic flux generated upon energization of a coil does not penetrate each of the press surfaces. | 12-19-2013 |
Patent application number | Description | Published |
20120012587 | LIQUID TANK FOR WORKING MACHINE ENGINE AND LIQUID TANK CAP - A liquid tank cap for a working machine engine is provided. The liquid tank cap opens and closes a filling opening of a tip end portion of a refilling pipe of a liquid tank. The liquid tank cap includes an upper wall that covers the filling opening, a fitting portion that engages with an inner surface of the filling opening and protrudes from the upper wall, and a peripheral wall that covers an outer circumference of the refilling pipe in a state where the liquid tank cap is attached to the filling opening. | 01-19-2012 |
20120017865 | LUBRICATING DEVICE FOR FOUR-STROKE ENGINE - A lubricating device for a four-stroke engine is provided that circulates oil while lubricating each part in a valve operating chamber and a crank chamber by supplying the oil to the valve operating chamber and the crank chamber using pressure fluctuation in the crank chamber, the pressure fluctuation being caused by reciprocating motion of a piston. The valve operating chamber is formed by mounting a valve operating chamber cover, and a suction passageway that sucks the oil in the valve operating chamber is provided by forming a groove on an inner surface of the valve operating chamber cover and sealing the groove with a sealing member shaped to fit the groove. | 01-26-2012 |
20120060790 | LUBRICATION STRUCTURE FOR FOUR-STROKE ENGINE - A lubrication structure for a four-stroke engine to lubricate driving parts by supplying oil stored in an oil tank provided separately from a crank chamber, using pressure fluctuation in the crank chamber, includes: a first circulating route to supply the oil from the oil tank to the crank chamber and return oil mist generated in the crank chamber to the oil tank; a second circulating route to supply the oil mist from the oil tank to a valve operating mechanism and return to the oil tank; a discharge passageway to discharge blowby gas contained during circulation of the oil from the second circulating route to a combustion chamber; and a partition wall to separate between the crank chamber and the oil tank. A central part of the partition wall is located vertically above a surface of the oil stored in the oil tank even if an engine body is tilted. | 03-15-2012 |
20120103720 | ENGINE - An object of the present invention is to provide a muffler mounting structure configured to be able to prevent fastening parts from slackening by reducing the thermal conductivity from an exhaust port to the muffler mounting bosses and an engine including the muffler mounting structure. An engine of the present invention | 05-03-2012 |
20120199097 | LUBRICATION APPARATUS FOR FOUR-STROKE ENGINE - A lubrication apparatus for a four-stroke engine ( | 08-09-2012 |
20120204840 | ENGINE - An engine includes a crank chamber in which pressure fluctuation occurs and a carburetor including a diaphragm fuel pump. The diaphragm fuel pump includes a pump chamber configured to suck in and eject fuel and a diaphragm chamber to which a pressure that drives the pump chamber is supplied. The diaphragm chamber and the crank chamber communicate with one another in a state in which a negative pressure is created in the crank chamber. | 08-16-2012 |
Patent application number | Description | Published |
20130027762 | CIRCUIT BOARD AND OPTICAL MODULATOR - A printed circuit board (PCB) has a connection ground pattern and a wiring ground pattern. The connection ground pattern is a pattern for soldered connection formed on a first wiring layer. The wiring ground pattern is formed to be spaced from the connection ground pattern on the first wiring layer. The connection ground pattern and the wiring ground pattern are electrically coupled via a second wiring layer. When the wiring ground pattern is covered with an insulating layer, such as a solder resist, even if the position of an end of the insulating layer varies among wiring ground patterns, an influence on an exposed area of the connection ground pattern is eliminated. | 01-31-2013 |
20130039612 | OPTICAL MODULATOR - An optical modulator comprises a substrate having an electro-optical effect, an optical waveguide formed in the substrate, a buffer layer provided above the optical waveguide, a semiconductor film provided above the buffer layer and having an aperture at a top of the optical waveguide, and an electrode provided above the buffer layer and electrically coupled to the semiconductor film. | 02-14-2013 |
20130243363 | OPTICAL MODULATOR - An optical modulator includes a first coupler that branches an input light into two and outputs a first output light and a second output light; a first Mach-Zehnder interferometer (MZI) that modulates the intensity of the first output light from the first coupler and outputs a third output light; a second MZI that modulates the intensity of the second output light from the first coupler and outputs a fourth output light; a second coupler that combines the third output light from the first MZI and the fourth output light from the second MZI, branches a combined light into two, and outputs a fifth output light and a sixth output light. The interaction length of a branch of the first coupler and that of the second coupler are set such that the wavelength dependence of the splitting ratio of the first coupler is inversely related to that of the second coupler. | 09-19-2013 |
20140119686 | OPTICAL MODULATOR AND OPTICAL TRANSMITTER - An optical modulator includes a package | 05-01-2014 |
20140119745 | OPTICAL MODULATING APPARATUS AND OPTICAL TRANSMITTER - An optical modulating apparatus includes driver that is mounted on a printed circuit board such that a signal electrode pad and a ground electrode pad of the driver are exposed in an opening of the printed circuit board. An optical modulating device is mounted on the printed circuit board, opposing the driver across the opening. A flexible circuit board is disposed in the opening. An end of a signal terminal of the flexible circuit board is electrically connected to a signal electrode of the optical modulating device. An end of a ground terminal of the flexible circuit board is electrically connected to a ground electrode of the optical modulating device. The other end of the signal terminal is soldered to the signal electrode pad of the driver, and the other end of the ground terminal is soldered to the ground electrode pad of the driver. | 05-01-2014 |
20140153934 | OPTICAL MODULATOR AND OPTICAL TRANSMITTER - An optical modulator includes a Mach-Zehnder optical waveguide that includes a pair of parallel waveguides, and a two-input-one-output optical coupler that couples light output from the parallel waveguides; a branching waveguide that branches a portion of light output from the optical coupler; and a light receiving unit that receives the light output from the branching waveguide. Orientation of an output end of the branching waveguide is angled toward the light receiving unit, to be oblique with respect to the parallel waveguides, and orientation of an output end of the optical coupler is angled toward a side opposite to that of the output end of the branching waveguide, to be oblique with respect to the parallel waveguides. | 06-05-2014 |
20140294380 | OPTICAL DEVICE AND TRANSMITTER - An optical device includes an optical waveguide that includes an incident waveguide, parallel waveguides along an electrode, and emission waveguides, formed on a substrate having an electro-optical effect, a first emission waveguide among the emission waveguides is set as an output waveguide of signal light, for output to an external destination and a second emission waveguide among the emission waveguides is set as a monitoring optical waveguide for the signal light; a photodetector that is disposed over the monitoring optical waveguide; and a groove formed on a portion of the substrate, where the photodetector of the monitoring optical waveguide is disposed. The monitoring optical waveguide has a width that, as compared with the width at a starting point side, is formed to increase as the monitoring optical waveguide approaches the groove. | 10-02-2014 |
20140355924 | OPTICAL MODULATOR - An optical modulator includes: a substrate that has electrooptical effect and has a Mach-Zehnder modulator that has a 2×2 coupler acting as a splitter, two intermediate waveguides coupled to outputting waveguides of the splitter and another 2×2 coupler acting as a combiner coupled to the two intermediate waveguides; and a suppresser that suppresses a power of an output light from an uncoupled waveguide and an input light into the uncoupled waveguide of at least one of the 2×2 couplers in an extending direction of the Mach-Zehnder modulator. | 12-04-2014 |
20150063809 | OPTICAL MODULE AND OPTICAL TRANSMITTER - An optical module includes a waveguide substrate having an optical waveguide and electrodes that apply electronic signals to the optical waveguide; a relay substrate disposed adjacently to the waveguide substrate; and a termination substrate disposed sandwiching the waveguide substrate with the relay substrate. The electrodes respectively have a first wiring portion connected from the relay substrate through the waveguide substrate to the termination substrate and a second wiring portion extending from the first wiring portion and branching on the termination substrate. In the second wiring portion, one branched wiring portion has a capacitor and a termination resistor, and another branched wiring portion extends through a bias resistor to a DC electrode on the relay substrate. The second wiring portion is divided into a first group extending in a first direction along the optical waveguide and a second group extending in a direction opposite to the first direction. | 03-05-2015 |
20150078763 | OPTICAL MODULE AND OPTICAL TRANSMITTER - An optical module includes a waveguide substrate including an optical waveguide and electrodes that apply electronic signals to the optical waveguide; a relay substrate disposed adjacent to the waveguide substrate; a terminal substrate disposed adjacent to the waveguide substrate and opposite to the relay substrate across the waveguide substrate; and a carrier substrate on which the waveguide substrate, the relay substrate, and the terminal substrate are mounted. The electrodes have a first interconnect unit from the relay substrate to the terminal substrate via the waveguide substrate and second interconnect units from the first interconnect unit and branching on the terminal substrate. Among the second interconnect units, a first interconnect branch includes a capacitor and a terminal resistor; and a second interconnect branch is connected to an interconnect of the carrier substrate via a bias resistor, passes under the waveguide substrate to a DC electrode for bias-adjusting on the relay substrate. | 03-19-2015 |