Yoshida, Hitachi
Hideki Yoshida, Hitachi JP
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20150222227 | MONITORING SYSTEM AND SLAVE DEVICE FOR PHOTOVOLTAIC POWER GENERATION PLANT - A monitoring system includes a slave device ( | 08-06-2015 |
Hirotaka Yoshida, Hitachi JP
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20110200289 | HIGH VOLTAGE CABTIRE CABLE - A high voltage cabtire cable | 08-18-2011 |
Jun Yoshida, Hitachi JP
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20110241455 | Magnetic Shield for Stator Core End Structures of Electric Rotating Machine - In an electric rotating machine, for reducing losses that occur in clamping plates and their shield, the electric rotating machine includes a rotor formed with field winding wound around a rotor core, a stator placed opposite to the rotor at a predetermined space and formed with stator winding wound around a stator core formed by stacking multiple magnetic steel sheets in the axial direction, clamping plates clamping and retaining the stator core from both axial end parts thereof in the stacking direction of the magnetic steel sheets, and a magnetic shield placed around the clamping plates to shield flux leakage flowing into the clamping plates, and the magnetic shield is formed of a cylinder of stacked steel sheets stacked in a form of a cylinder about the rotor shaft and powder magnetic core segments and powder magnetic core segments having portions which are stuck to the cylinder of stacked steel sheets on the stacking cross section, and arranged to cover side surfaces and an inner surface of radial direction of the clamping plates. | 10-06-2011 |
Katsumi Yoshida, Hitachi JP
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20100235699 | FAULT DIAGNOSIS APPARATUS AND FAULT DIAGNOSIS METHOD OF MULTI-CHANNEL ANALOG INPUT/OUTPUT CIRCUIT - A fault diagnosis apparatus and method capable of simultaneously detecting the fault of a multiplexer and the fault of an A/D converter and isolating and identifying causes of these faults, the multiplexer and the A/D converter being used in a multi-channel analog input/output circuit. Test-voltage values are inputted from a diagnosis-voltage input unit into the multiplexer and the A/D converter constituting an analog-signal conversion unit, the multiplexer having plural channels, the A/D converter converting outputs from the multiplexer into digital signals, the test-voltage values being different from each other for each channel of the multiplexer. Comparisons are made between the digital voltage values and the test-voltage values inputted, the digital voltage values being outputted for each channel of the multiplexer. From this comparison result, it is judged whether the multiplexer is at fault or the A/D converter is at fault. | 09-16-2010 |
Shoji Yoshida, Hitachi JP
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20100006755 | CHARGED PARTICLE BEAM ALIGNMENT METHOD AND CHARGED PARTICLE BEAM APPARATUS - An object of the present invention is to provide a charged particle beam apparatus and an alignment method of the charged particle beam apparatus, which make it possible to align an optical axis of a charged particle beam easily even when a state of the charged particle beam changes. The present invention comprises calculation means for calculating a deflection amount of an alignment deflector which performs an axis alignment for an objective lens, a plurality of calculation methods for calculating the deflection amount is memorized in the calculation means, and a selection means for selecting at least one of the calculation methods is provided. | 01-14-2010 |
20140146430 | Digital Protection Control System and Digital Protection Control Apparatus - Disclosed are a digital protection control system and a digital protection control apparatus, wherein the digital protection control apparatus can easily be made to have more terminals, even when the number of terminals of a power transmission line increases. The digital protection control system has, as terminal stations thereof, a reference station that is to become the reference point for the sampling time at which power grid current information is to be taken in, tail-end stations that take in power grid current information from the power grid system, and intermediate stations that are connected between the reference station and the tail-end stations via transmission paths. The intermediate station is provided with an uplink transmission unit that is connected to a transmission path at the reference station side thereof, and a plurality of downlink transmission units that are connected to transmission paths at the tail-end station side thereof. The intermediate station also has the time thereof to be subordinate to the time of the terminal station connected to the uplink transmission unit thereof, and the time of the terminal stations connected to the downlink transmission units thereof are made to be subordinate to the intermediate station, with the time thereof used as reference time. | 05-29-2014 |
Yoshiyuki Yoshida, Hitachi JP
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20080234105 | Control System and Method for Automatic Transmission - A worsening of drivability is to be kept to a minimum by making a fail-safe control taking the state in the event of failure of a shifting operation into account. When clamping a sleeve to a free rotatable gear and during the period after instructing movement of the sleeve to a clamping position until movement of the sleeve to a predetermined positional range which makes it possible to judge that the sleeve has been clamped to the free rotatable gear, a pushing load for the sleeve is increased if the sleeve is in a fixed state near the balk ring, while if the sleeve is in a fixed state near the free rotatable gear, the sleeve is once returned to a neutral position thereof and is re-clamped to the free rotatable gear. Further, the number of times the sleeve is re-clamped to the free rotatable gear is counted and the use of the free rotatable gear is inhibited in accordance with the counted number of times. | 09-25-2008 |
20090042692 | Apparatus and Method for Controlling Automatic Transmission - The control apparatus includes a so-called pre-shift means. The pre-shift means operates a predetermined synchromesh based on a result of prediction by a predicting means. It thereby couples together a transmission input shaft with which a friction transfer mechanism having not been used for achievement of a current gear position and a transmission output shaft through a predetermined gear train and brings them into standby state. As the timing with which the synchromesh coupling operation by the standby control is started, the time when it is determined that the friction transfer mechanism having not been used for the achievement of the current gear position has been disengaged is taken regardless of the completion of the achievement of the current gear position. | 02-12-2009 |
20110100326 | Engine Control Unit - Provided is an engine control unit which is capable of determining whether or not a sudden change in ETC characteristic has occurred, timely learning the ETC characteristic, and thus suppressing excessive racing of an engine and enhancing torque realizing accuracy thereof, at a time other than the opportunity of a regular air quantity learning in a vehicle having no idle state or a less frequent opportunity of the idle state. The engine control unit performs automatic stop control and automatic starting control of an engine and includes: a characteristic storage means which stores therein a characteristic of an air flow rate with respect to a valve opening degree of an electronic throttle control valve; a characteristic change determination means | 05-05-2011 |
Yuhiro Yoshida, Hitachi JP
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20110238387 | APPARATUS AND COMPUTER PROGRAM FOR GENERATING ROUTE - A route generating apparatus includes: storage section storing geometric data of connection objects; data representing connection relations of group of main route for directly connecting objects, and branch route branching from main route, and connection objects; and data representing each constraint condition for constraining disposition position of branch point on the main route; constraint region generating section that generates each constraint region where corresponding branch point can be disposed, based on the geometric disposition position of corresponding connection object, corresponding connection relation, and corresponding constraint condition; route generating section that generates, as each main route, a shortest main route passing through each constraint region and generates, as each branch route, a shortest branch route that branches from the main route; and constraint region and route display section that displays a geometric figure of each constraint region, each main route, and each branch route. | 09-29-2011 |
20120221298 | Design Assist Device, Method, and Program - An arrangement possible/impossible determination part of a piping order edit device: refers a pipe constituting a pipe list as a pipe subjected to determination; searches a main-branched pipe relationship database for a given pipe using identification information on the pipe subjected to determination as a search key; acquires a main pipe and a branched pipe corresponding to the searched given pipe; and, if there is a branched pipe positioned before the pipe subjected to determination in the pipe list or if there is a main pipe positioned after the pipe subjected to determination in the pipe list, the “arrangement possible/impossible” of the pipe subjected to determination is set at “impossible”. | 08-30-2012 |