Naoki Yamaguchi
Naoki Yamaguchi, Nagaokakyo-Shi JP
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20090316444 | SWITCHING POWER SUPPLY DEVICE - In a switching power supply device, a first switch element, which defines a main switch element of a DC-DC converter, and a third switch element, which defines a switch element of a power-factor correcting circuit, are controlled such that turn-on timings are synchronized while on-period control is independently performed to thereby prevent an increase in switching frequency and prevent noise by eliminating intermittent oscillation. Thus, it is possible to prevent intermittent oscillation control due to an increase in switching frequency of the first switch element under a light load state or a no load state. This eliminates problems of the frequency of intermittent oscillation that falls within an audible frequency range causing noise and increasing ripple voltage. | 12-24-2009 |
20130107579 | SWITCHING POWER SUPPLY APPARATUS | 05-02-2013 |
20130250625 | SWITCHING POWER SUPPLY APPARATUS - In a switching power supply apparatus, a low-side switching device is connected in series with a primary winding. A high-side switching device and the primary winding define a closed loop. A voltage induced in a high-side drive winding is applied to the high-side switching device to turn on the high-side switching device. A transistor, which is turned on/off in accordance with the voltage across a capacitor charged by the voltage induced in the high-side drive winding, is connected to the gate terminal of the high-side switching device. When the capacitor is charged and the transistor is turned on, the high-side switching device is turned off. The capacitor is discharged by the voltage induced in the high-side drive winding, during the ON period of the low-side switching device. | 09-26-2013 |
20140376273 | SWITCHING POWER SUPPLY APPARATUS - In a switching power supply apparatus, when it is detected at time t1 that a voltage Vis has exceeded a first threshold Vth1, a timer counting a period of time T1 is started, and the number times the input voltage Vis does not exceed Vth1 is started to be counted. When the timer expires before the count reaches a predetermined number, a first overcurrent protection operation is performed. When it is detected at time t2 that Vis has exceeded a second threshold Vth2, a second overcurrent protection operation is immediately performed. As a result, appropriate overcurrent protection is performed in accordance with the operating state of a load. | 12-25-2014 |
20140376274 | SWITCHING POWER SUPPLY DEVICE - In a switching power supply device, a partition portion that includes a slit divides a winding portion of a bobbin. A primary winding of a transformer is wound to a height h1 in a first section, and a secondary winding is wound to a height h2 in a second section. A low side drive winding and a high side drive winding are wound around the primary winding to a height h3 with the high side drive winding being located toward the secondary winding. | 12-25-2014 |
Naoki Yamaguchi, Nagano JP
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20110169733 | CURSOR POSITIONING CONTROL DEVICE - A cursor positioning control device is provided. The device includes a cursor movement measuring unit configured to measure a measurement value corresponding to a movement amount of a cursor on a display every certain time, a cursor deceleration determination unit configured to subtract an N-th measurement value from an (N-1)-th measurement value of the cursor movement measuring unit, and configured to determine that the cursor is being decelerated if the subtracted value is greater than a predetermined threshold value, wherein N is a natural number. When the number of successive times that the subtracted value is greater than the predetermined threshold value exceeds a predetermined number of times, the cursor deceleration determination unit generates an instruction signal for at least further decelerating a movement of the cursor than a cursor movement deceleration speed that a user instructs. | 07-14-2011 |
20110175808 | POINTING DEVICE - A pointing device is provided. The pointing device is configured to output a movement instruction signal for moving a cursor on a display in an instructed direction and includes: a pointing stick; a cursor movement including a +X sensor, −X sensor, +Y sensor and −Y sensor configured to sense a cursor movement instruction signal for instructing the cursor to move in +X direction, −X direction, +Y direction and −Y direction, respectively, according to an operation to the pointing stick; and a stick Z direction operation detector configured to determine that an instruction signal according to an operation to the pointing stick is different from the cursor movement instruction signals when each of outputs from the +X sensor, −X sensor, +Y and −Y sensor is changed by a corresponding predetermined first threshold value or greater within a predetermined time period. | 07-21-2011 |
Naoki Yamaguchi, Utsunomiya-Shi JP
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20110261333 | EXPOSURE APPARATUS, DEVICE MANUFACTURING METHOD USING SAME, AND GAS SUPPLY DEVICE - The exposure apparatus includes a purge member that includes a humidifier that humidifies supplied gas; a first regulator that regulates a flow rate of first gas which passes through the humidifier; a second regulator that regulates a flow rate of second gas which does not pass through the humidifier; a variable instrument that varies a humidifying performance of the humidifier; a sensor; and a controller. Here, the controller controls the first and the second regulators to adjust a flow rate ratio of the first gas and the second gas on the basis of the humidity of the humidified gas detected by the sensor and a pre-set target humidity, and controls the variable instrument to keep the flow rate of the first gas constant on the basis of an amount of operation of the first regulator and an amount of pre-set target operation. | 10-27-2011 |
20130234371 | IMPRINT APPARATUS, AND ARTICLE MANUFACTURING METHOD USING SAME - An imprint apparatus molds a resin on a substrate with a mold and cures it by irradiation with a light to form a pattern on the substrate. This imprint apparatus includes an light irradiation unit configured to irradiate the light, and a mold holding unit configured to hold the mold, and at which an opening is formed to allow passage of the light irradiated from the light irradiation unit toward the substrate via the mold. Here, at least a portion of the surface of the mold holding unit which a reflected light that is reflected by at least either the substrate or the mold is can be incident has a reflectance that is lower than the reflectance of the surface of the mold relative to the light that is irradiated from the light irradiation unit. | 09-12-2013 |
Naoki Yamaguchi, Aikoh-Gun JP
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20110317312 | FLEXURE AND METHOD OF FORMING WIRING PART OF FLEXURE - A flexure includes a metal substrate whose front end supports a slider and a wiring part having a base insulating layer and a conductor layer formed on the base insulating layer. The wiring part includes a normal wiring part that is on the metal substrate and an aerial wiring part that is on a space separated from the metal substrate. The base insulating layer of the aerial wiring part is formed to be thinner than that of the normal wiring part. This configuration reduces a rigidity contribution ratio of the wiring part. | 12-29-2011 |
Naoki Yamaguchi, Anjo-Shi JP
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20120199413 | VEHICULAR REAR WHEEL STEERING DEVICE - A vehicular rear wheel steering device includes a housing, a rod being non-turnable with respect to the housing and movably supported in an axial direction of the rod, and a conversion mechanism arranged between the rod and the housing to convert a rotation of a rotational drive device to a drive force in the axial direction. The housing includes a tubular first bush disposed at a first end and a tubular second bush at a second end. Each bush is slidably engaged to an outer periphery of the rod and supports the rod to be movable in the axial direction. A rod supporting rigidity of the first bush is lower compared to that of the second bush. The first bush is arranged with an elastic body that deforms in a radial direction of the rod. The second bush is arranged with an inner periphery protrusion at which the rod tilts. | 08-09-2012 |
Naoki Yamaguchi, Kanagawa JP
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20130010392 | WIRING SUBSTRATE WITH A TORSION RESTRICTOR FOR A TERMINAL - A wiring substrate comprises a conductor pattern embedded in an insulating layer, the insulating layer having an opening to expose top and bottom faces of the conductor pattern and define a terminal of the wiring substrate, a torsion restrictor formed in the conductor pattern at a location passing over an edge of the opening, the torsion restrictor restricting torsion of the terminal, and an easily extensible part formed on at least one of the torsion restrictor and a portion of the terminal adjoining the torsion restrictor, the easily extensible part allowing the conductor pattern to longitudinally extend toward the opening. | 01-10-2013 |
20150241788 | FLEXURE AND METHOD OF FORMING PART OF FLEXURE - A flexure includes a metal substrate whose front end supports a slider and a wiring part having a base insulating layer and a conductor layer formed on the base insulating layer. The wiring part includes a normal wiring part that is on the metal substrate and an aerial wiring part that is on a space separated from the metal substrate. The base insulating layer of the aerial wiring part is formed to be thinner than that of the normal wiring part. This configuration reduces a rigidity contribution ratio of the wiring part. | 08-27-2015 |
Naoki Yamaguchi, Fukuroi-Shi JP
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20140062438 | LOAD DRIVING APPARATUS AND CONTROLLING METHOD THEREFOR - There is provided a load driving apparatus including: a power converter circuit configured to convert electric power into direct current power; an output electric current detecting circuit configured to detect an output current flowing in the load; and a control circuit section configured to switch ON/OFF-operations of the load depending on an operation instruction information, to perform constant current control during a period of the ON-operation of the load, to output a first pulse signal to the power converter circuit when starting the constant current control, ON-duty of the first pulse signal being substantially same as that during a period of a most recent operation of the load performed immediately before, to perform constant voltage control during a period of the OFF-operation of the load based on an output voltage applied to the load, and to output a second pulse signal to the power converter circuit. | 03-06-2014 |
Naoki Yamaguchi, Komaki-Shi JP
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20130223893 | DEVELOPING ROLL FOR ELCTROPHOTOGRAPHIC MACHINE - Provided is a developing roll for use in an electrophotographic machine capable of preventing an ion conductive agent from blooming and retaining long-term charge decay characteristics. The roll ( | 08-29-2013 |
Naoki Yamaguchi, Fuchu JP
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20150151642 | CHARGING MANAGEMENT SYSTEM - According to one embodiment, there is provided a charging management system including a display controller configured to cause a display device to display a time slot which is settable as a new desired rental time slot of an electric vehicle, based on a charging time slot on an assumption that charging to the vehicle by a second charging device is performed, and a scheduling module configured to set the desired rental time slot as a time slot in which rental is possible, if the charging to the electric vehicle for enabling the rental is possible in the input desired rental time slot and the rental time slot in which the rental reservation has been made. | 06-04-2015 |
Naoki Yamaguchi, Kodaira JP
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20160028253 | CHARGE PERIOD ADJUSTING APPARATUS, CHARGE SYSTEM, AND CHARGE PERIOD ADJUSTING PROGRAM - [PROBLEM] To provide a technology of effectively using supplied electric power through adjustment of a charge schedule period of an EV. | 01-28-2016 |
Naoki Yamaguchi, Shiga JP
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20160066616 | JUICER AND ATTACHMENT FOR JUICER - A juicer includes a screw, attachment, container, a lid, and a main unit. Attachment has the screw disposed internally, and crushes frozen material between an inner surface and the screw. Container has first spout for discharging the crushed material. The lid includes a feed opening for the material, and is disposed on upper part of container. A main unit has a mount section on an upper part for placing container, and drives the screw. Attachment has drum section for crushing the frozen material between the inner surface and the screw, and second spout connected to an inlet of first spout for guiding the crushed material into first spout. A first rib is provided in first spout for prevention of finger insertion, and second rib is disposed in second spout at a position corresponding to the first rib. This structure can discharge the frozen material in fluid form smoothly from inside of the attachment to outside of the container. | 03-10-2016 |
Naoki Yamaguchi, Saitama-Shi JP
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20160077354 | SHAKE CORRECTION DEVICE AND OBSERVATION DEVICE - A first correction signal creation unit | 03-17-2016 |