Murata, Aichi
Hiromi Murata, Aichi JP
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20130033209 | MOTOR CONTROL DEVICE - A motor control device has a motor driving circuit for driving a motor, a current detection circuit for detecting a motor current flowing through the motor driving circuit, and a controller for calculating a detected value of the motor current based on an output of the current detection circuit, comparing the detected value with a target value of the motor current, and generating a command value for allowing a motor current of the target value to flow through the motor based on a deviation therebetween, to output the command value to a motor driving circuit. The current detection circuit is configured of a first current detection circuit having a positive first gain and a second current detection circuit having a negative second gain obtained by inverting the first gain. | 02-07-2013 |
20150280609 | LOAD DRIVING DEVICE - A motor driving device includes a failure detector detecting the failure of switching elements and diodes of an inverter circuit. When the failure detection unit detects a failure according to which a switching element of a phase C upper stage is not conducting, but does not detect a failure according to which the diode connected is not conducting, a motor is driven using the switching element paired with the faulty switching element and the switching elements of the other phase. When the failure detection unit detects the failure according to which the switching element of the phase C upper stage is not conducting, and detect the failure according to which the diode connected is not conducting, the switching element paired with the faulty switching element is maintained in an off state, and each of the switching elements of the other phase is on/off controlled. | 10-01-2015 |
Keiji Murata, Aichi JP
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20150257631 | Endoscope Image-Acquisition Unit and Endoscope Apparatus - Positioning precision between an image-acquisition device and an objective lens is enhanced by suppressing manufacturing errors. Provided is an endoscope image-acquisition unit equipped with an objective-lens-unit frame that holds an objective lens and an image-acquisition-device holding frame that is fitted to the objective-lens-unit frame and that holds an image-acquisition device, wherein the objective-lens-unit frame and the image-acquisition-device holding frame are attached and secured to each other by means of thermosetting resin that is applied to fitting portions therebetween and in which polar-molecule materials are mixed, and one of the objective-lens-unit frame and the image-acquisition-device holding frame, whichever one is positioned outside at the fitting portions, is formed of a material that allows microwaves to pass therethrough. | 09-17-2015 |
Kenji Murata, Aichi JP
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20150068880 | OPERATING DEVICE - An operating device includes a push operation mechanism including an operating portion to be push-operated, a tactile presenting means that drives the operating portion, a detecting portion for detecting movement of the operating portion, and a drive control unit that drives the driving portion by a drive control signal and a main vibration pulse signal output after outputting the drive control signal, the drive control signal being generated based on a start pulse signal and a pre-vibration pulse signal. The drive control unit sets a mask time to invalidate a detection signal of the detecting portion in a certain period when the drive control signal is output and switches from the output of the drive control signal to the output of the main vibration pulse signal based on a detection signal of the detecting portion after an elapse of the mask time. | 03-12-2015 |
Masaaki Murata, Aichi JP
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20150275563 | DOOR OPENING/CLOSING CONTROL DEVICE - A door opening/closing control device includes: a driving part driving an actuator opening or closing a door; an operation switch operated for instructing opening/closing or stopping of the door; a first controller controlling driving of the actuator via the driving part in accordance with the operation; a manual opening/closing detector detecting that the door is manually opened or closed; and a second controller controlling the driving of the actuator via the driving part to assist a manual operation of opening or closing the door when the manual opening/closing detector detects the manual opening/closing operation. Then, when the second controller controls the driving of the actuator to assist the manual operation of opening or closing the door, even when the operation switch is operated, the first controller does not control the driving of the actuator in accordance with the operation, and the second controller continues to control the driving. | 10-01-2015 |
Shinichi Murata, Aichi JP
Yasuhiro Murata, Aichi JP
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20120305920 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF, DISPLAY APPARATUS AND ELECTRONIC APPARATUS - A semiconductor device including: a first electric conductor of a lower layer side and a second electric conductor of an upper layer side; a thick film insulating layer provided between the first electric conductor and the second electric conductor; and a contact portion formed so as to imitate an inner surface shape of a through hole with respect to the insulating layer and electrically connecting the first electric conductor and the second electric conductor, in which a tapered angle of the through hole is an acute angle. | 12-06-2012 |
Yutaka Murata, Aichi JP
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20100051224 | METHOD TO MOVE AN UPPER MOLD IN RELATION TO A LOWER MOLD IN A PERMANENT MOLD CASTING MACHINE AND THE PERMANENT MOLD CASTING MACHINE USED FOR THE METHOD - The present invention provides a method to operate an upper mold in a permanent mold casting machine and the permanent mold casting machine used for the method where a stable operation of the upper mold is realized. The method to operate the upper mold against a lower mold whereby molten metal held in a holding furnace is poured via a stoke into s set of molds consisting of the upper and lower molds and to manufacture casting products, the mold casting machine comprising a mold clamping mechanism attached to a lifting and lowering frame, wherein the mold clamping mechanism is equipped with the upper mold lifting and lowering means that carries out the assembling and separation of the upper and lower molds by lifting and lowering, relative to the lower mold and the lifting and lowering frame, the upper mold being attached to the lower part of the upper mold lifting and lowering means, wherein the space for a setting of a core and for taking out the products is formed between the upper and lower molds by the lifting of the upper mold lifting and lowering means relative to the lifting and lowering frame, and by the lifting of the lifting and lowering frame relative to the lower mold, and wherein the molten metal is poured, while the lifting and lowering frame, to which the mold clamping mechanism having the upper mold is attached, is kept fixed relative to the lower mold, and then the permanent mold casting machine causes the upper mold to be separated from the lower mold by the operation of the upper mold lifting and lowering means, while keeping the lifting and lowering frame fixed relative to the lower mold. | 03-04-2010 |
20100108285 | DEVICE FOR LOW-PRESSURE CASTING, A METHOD FOR FILLING INERT GAS IN THE DEVICE, AND METHOD FOR PRODUCING A CAST - The object of the present invention is to provide a device for low-pressure casting wherein the stalk or the guiding hole is filled with inert gas by causing the space formed over the molten metal in the pressurizing room to communicate with the stalk or the guiding hole. The device for low-pressure casting ( | 05-06-2010 |
Yutake Murata, Aichi JP
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20100108283 | LOW-PRESSURE CASTING APPARATUS AND A METHOD FOR FILLING IT WITH AN INERT GAS - The present invention is aimed to provide a low-pressure casting apparatus which can prevent the molten metal that is a residue in a conduit from being oxidized. A conduit in the apparatus is connected to a lower part of a pressure chamber in which the molten metal is pressurized. Also, the end of the conduit is made so that it can communicate with a sprue for a mold. | 05-06-2010 |