Toshio Nishimura
Toshio Nishimura, Yasu-Shi JP
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20100239444 | LAYERED PIEZOELECTRIC ELEMENT AND PIEZOELECTRIC PUMP - A piezoelectric element that is capable of achieving a larger amount of displacement and in which migration between electrodes hardly occurs, is included in a piezoelectric pump. The piezoelectric pump includes a first excitation electrode opposed to a second excitation electrode via a first piezoelectric layer in a central area of a layered piezoelectric body, a third excitation electrode opposed to a fourth excitation electrode via a second piezoelectric layer and a third excitation electrode opposed to a fourth excitation electrode via the second piezoelectric layer in peripheral portions of the layered piezoelectric body. A polarization direction and a direction in which an electric field is applied in a first driving area where the first excitation electrode opposes the second excitation electrode are equal to a polarization direction and a direction in which the electric field is applied in second driving areas where the third excitation electrode opposes the fourth excitation electrode and the third excitation electrode opposes the fourth excitation electrode, and bending and displacement in the layered piezoelectric element where the second excitation electrode is isolated from the third excitation electrodes and in a thickness direction and in a central portion of the layered piezoelectric element are used to discharge liquid. | 09-23-2010 |
Toshio Nishimura, Anjo-Shi JP
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20110153180 | ELECTRONIC CONTROL UNIT FOR CONTROLLING ELECTRICALLY DRIVEN LOADS IN ENHANCED FAIL SAFE MANNER - A first judgment circuit and a second judgment circuit are adapted to set a judging signal high when a judgment data sent from a microprocessor indicates failure. The high level judging signal triggers a forced idle command connected to a motor driver, to be high level whereby the motor is forcibly suspended. Subsequently, when a reset command is accidentally transmitted by the microprocessor due to an unexpected fault, a first judging signal from the first judgment circuit is reset to low level. However, a second judging signal from the second judgment circuit remains high level. As a result, the forced idle command stays high level. | 06-23-2011 |
Toshio Nishimura, Nagaokakyo-Shi JP
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20120187800 | Electromechanical Conversion Element and Actuator - An electromechanical conversion element having high connection reliability and an actuator equipped with the electromechanical conversion element. The electromechanical conversion element includes: a displacement part capable of expanding and contracting by application of voltage and having electrode forming faces and an adhesion face which are disposed adjacent to each other; and external electrodes on the electrode forming faces, in which lead electrodes for applying voltage to the displacement part are bonded to bonding regions provided in the external electrodes, and a driven member capable of being driven by the expansion and contraction of the displacement part is bonded to the adhesion face by an adhesive. The electromechanical conversion element further includes bleed flow blocking parts on the electrode forming faces at points closer to the adhesion face than ends of the bonding regions located on the same side as the adhesion face. | 07-26-2012 |
20120228997 | Electromechanical Transducer and Actuator - An electromechanical transducer that includes an elongating/contracting member and a driving member. The elongating/contracting member elongates and contracts in response to application of a voltage thereto. The elongating/contracting member has a side surface that is parallel to an elongation/contraction direction. The driving member is provided on the side surface of the elongating/contracting member. The driving member is displaced with elongation and contraction of the elongating/contracting member. | 09-13-2012 |
20130241360 | MANUFACTURING METHOD FOR PIEZOELECTRIC ELEMENT AND MOTHER PIEZOELECTRIC SUBSTRATE WITH ELECTRODE - A method of manufacturing a piezoelectric element, which includes a first electrode adjacent a first main surface of a mother piezoelectric substrate and a second electrode adjacent a second main surface. During formation of the first electrode and the second electrode, cutouts are provided in the first electrode and the second electrode so that the shapes of the first electrode and the second electrode are different from each other when the mother piezoelectric substrate is inverted. | 09-19-2013 |
Toshio Nishimura, Anjo-City JP
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20140020661 | FUEL INJECTION CONTROLLER - A fuel injection controller includes a transistor downstream of a coil of a fuel injector, two transistors applying a source voltage to an upstream of the coil, a diode refluxing an electric current to the coil from a ground, and a Zener diode provided to promptly consume the counter electromotive force generated in the coil when one of the transistors is turned OFF and the transistor is turned OFF, after an injector-drive-period of the fuel injector is terminated. When a microcomputer measures an injector current āIā decreasing from a time of the termination of an injector-drive-period, a drive control circuit delays an OFF time of the transistor relative to a time of a termination of an injector-drive-period, whereby the injector current āIā decreases gradually. | 01-23-2014 |
20140034025 | FUEL INJECTION CONTROL APPARATUS - In a fuel injection control apparatus, an injector is driven to open its valve by supplying a coil of the injector with a current during a high-level period of a power supply command signal outputted from a microcomputer. A valve-closing time of the injector is detected based on a coil current, which decreases from a fall time of the power supply command signal. By comparing the coil current with plural equally-divided comparison threshold values by comparators, times are detected when the coil current decreases to the comparison threshold values, respectively. The valve-closing time is detected based on time differences among the detected times. | 02-06-2014 |
20140069389 | FUEL INJECTION CONTROLLER - A fuel injection controller is provided with a detection control portion which detects a valve-opening time. The detection control portion supplies the low valve-opening voltage to the fuel injector from a low voltage supply. An electric current flowing through a coil is gradually increased. When the fuel injector is fully opened, an inflection point appears on a waveform of an electric current. A valve-open detecting portion detects the inflection point and identifies a valve-opening time. A correction-amount computing portion computes a correction amount of a fuel injection quantity due to an error of the valve-opening time. In a succeeding fuel injection, the correction portion corrects an electric supply period. As a result, the error of the fuel injection quantity due to an error of valve-opening time is corrected. | 03-13-2014 |
20140069390 | FUEL INJECTION CONTROLLER - A fuel injection controller supplies a valve-opening voltage VF | 03-13-2014 |
20140069391 | FUEL INJECTION CONTROLLER - A fuel injection controller has terminals which can be connected to the coil of the fuel injector. A first valve-open control portion supplies the valve-opening voltage to the terminals for opening the fuel injector. The first valve-open control portion stops supplying the electric supply to the coil before the fuel injector is positioned at a full-open position. Before the fuel injector is fully dosed, a small injection quantity can be obtained. A demagnetization portion forms a demagnetization circuit for demagnetizing the magnetism remaining in the coil. A normal-injection portion controls the fuel injector at full-open position. | 03-13-2014 |