Patents by Inventor Hiroshi Takao
Hiroshi Takao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140191705Abstract: A battery charger in a power supply apparatus is mechanically and electrically connectable to and disconnectable from a battery that is for supplying electric power to a power-assisted bicycle, and includes an AC outlet and a USB connecting terminal that are electrically connected with the other apparatus and supply the electric power from the battery to the other apparatus.Type: ApplicationFiled: May 2, 2012Publication date: July 10, 2014Inventors: Hiroshi Takao, Hideaki Aoki
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Publication number: 20140152224Abstract: A motor drive circuit comprises: a DC power supply; power supply lines; an inverter which has upper arm switch elements and lower arm switch elements; and a detection unit for detecting, based on a power state on the previous stage side of the inverter, the insulation resistances of the motor drive circuit and the motor. The detection unit performs a first detection operation for detecting the insulation resistances by using the output of the DC power supply while the upper arm switch elements and the lower arm switch elements are all turned off and a second detection operation for detecting the insulation resistances by using the output of the DC power supply while the elements of one of the upper arm switch elements and the lower arm switch elements are all turned off and at least one of the elements of the other one is turned on.Type: ApplicationFiled: May 15, 2012Publication date: June 5, 2014Applicant: SANYO ELECTRIC CO., LTD.Inventors: Yoichi Enomoto, Hiroshi Takao, Yoshihiko Maeda, Hoshihito Okada
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Patent number: 8707102Abstract: A method for verifying an operation of a processor, the method includes executing, by a software simulator, a test instruction used for verifying a model dependent operation of the processor, obtaining an expectation value from a result of the executed test instruction, obtaining a result value of the test instruction executed by the processor, and comparing, by a verification processor, the obtained expectation value with the obtained result value to determine a match or mismatch between the expectation value and the result value.Type: GrantFiled: September 6, 2011Date of Patent: April 22, 2014Assignee: Fujitsu LimitedInventor: Hiroshi Takao
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Patent number: 8468327Abstract: A processor test method of testing a processor includes executing each test instruction of a test instruction sequence to obtain a condition code set by a condition code setting instruction of the test instruction sequence for testing the processor; producing a condition branching instruction to add the produced condition branching instruction to the end of the condition code setting instruction of the test instruction sequence, the condition branching instruction branching to an error output instruction when a condition code that does not match the obtained condition code is supplied; and executing, by an advanced control scheme, a test instruction sequence in which the condition branching instruction is added to the test instruction sequence.Type: GrantFiled: December 22, 2009Date of Patent: June 18, 2013Assignee: Fujitsu LimitedInventor: Hiroshi Takao
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Patent number: 8198846Abstract: A motor control device that controls the driving of a motor having a permanent magnet provided at a rotor has: an angle detector that detects the angle of the rotor by use of an angle sensor; a current detector that detects, as a detected current, the outflow current from or inflow current to a direct-current power source serving as the source for driving the motor; and an angle corrector that corrects the detected angle based on the detected current. The driving of the motor is controlled by use of a corrected angle obtained through the correction by the angle corrector.Type: GrantFiled: April 23, 2008Date of Patent: June 12, 2012Assignee: SANYO Electric Co., Ltd.Inventors: Naoya Iwasaki, Hiroshi Takao
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Publication number: 20120117426Abstract: A method for verifying an operation of a processor, the method includes executing, by a software simulator, a test instruction used for verifying a model dependent operation of the processor, obtaining an expectation value from a result of the executed test instruction, obtaining a result value of the test instruction executed by the processor, and comparing, by a verification processor, the obtained expectation value with the obtained result value to determine a match or mismatch between the expectation value and the result value.Type: ApplicationFiled: September 6, 2011Publication date: May 10, 2012Applicant: FUJITSU LIMITEDInventor: Hiroshi TAKAO
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Publication number: 20120074884Abstract: An inverter device of the present invention includes: an inverter circuit portion that has a plurality of switching elements and that converts direct-current power into alternating-current power; and a temperature detection sensor that detects the temperature of the switching elements, in which, in the inverter circuit portion, a plurality of the switching elements on each of an upper side arm and a lower side arm corresponding to each phase are connected in parallel, and the temperature detection sensor is arranged in an intermediate position between the switching elements connected in parallel.Type: ApplicationFiled: September 23, 2011Publication date: March 29, 2012Applicant: SANYO Electric Co., Ltd.Inventors: Hoshihito OKADA, Yoshihiko Maeda, Hiroshi Takao, Yoichi Enomoto
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Patent number: 8029267Abstract: An ejector apparatus moves a lift core extending through a core of a component of a resin molding mold to form an undercut portion in a molded piece and is installed so as to be capable of moving obliquely with respect to the core surface in a longitudinal direction. An ejector plate is arranged between the core and a base plate below the core, so as to be capable of moving up and down. A slide path is formed in the ejector plate extending in a direction in which a lower end of the lift core makes relative horizontal movement during ascent and descent of the lift core. A slide base is movably arranged in the slide path and coupled to the lower end of the lift core. A guide rod imparts a moving force within the slide path to the lower end of the lift core during ascent and descent of the ejector plate.Type: GrantFiled: May 19, 2008Date of Patent: October 4, 2011Assignee: Takao Injection Mold Engineering Co., Ltd.Inventor: Hiroshi Takao
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Publication number: 20110238250Abstract: A system control apparatus for a mobile body which controls a motor and the entire system of the mobile body while monitoring the remaining capacity of a battery includes: a remaining capacity estimator which estimates the remaining capacity of the battery; a remaining capacity corrector which corrects the remaining capacity of the battery estimated by the remaining capacity estimator based on at least one of the voltage, current, and temperature of the battery; and a system controller which turns off the driving of the motor on the condition that the remaining capacity of the battery corrected by the remaining capacity corrector becomes equal to or less than a first predetermined remaining capacity.Type: ApplicationFiled: March 23, 2011Publication date: September 29, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventor: Hiroshi TAKAO
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Publication number: 20110210651Abstract: A motor of the present invention is provided with a storage portion, and information stored in the storage portion can be output to the outside.Type: ApplicationFiled: February 23, 2011Publication date: September 1, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventors: Yoshihiko MAEDA, Hiroshi TAKAO
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Publication number: 20110073363Abstract: A circuit board is accommodated in an internal space of a main body casing, and a bus bar electrically connected to the circuit board is drawn out of the main body casing. The bus bar is held in an internal region of a terminal holder positioned outside the main body casing. One end of a harness is connected to the bus bar in the internal region of the terminal holder, and the other end of the harness is drawn out to an external space. In this state, a joint region of a terminal cover is joined to a joint region of the terminal holder.Type: ApplicationFiled: September 24, 2010Publication date: March 31, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventors: Takeshi NAGAO, Hiroshi TAKAO
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Publication number: 20110074214Abstract: Terminals of a battery apparatus is connected to terminals of a vehicle body controller, respectively, and terminals of the battery apparatus are connected to terminals of a charger, respectively. The terminals are connected to each other through a communication path, and the terminals are connected to each other through a communication path. A termination resistor and a switch are connected in series between the communication paths. A microcomputer controls the switch based on a voltage of the terminal.Type: ApplicationFiled: September 27, 2010Publication date: March 31, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventors: Hiroshi TAKAO, Kazushige KAKUTANI
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Publication number: 20110069941Abstract: A recording apparatus performs bit rate conversion on an input stream and records the input stream with additional data such as captions and a weather forecast left therein into a recording medium in consideration of the remaining capacity thereof. A recording apparatus (10) performs bit rate conversion on an input stream including video data, voice data and additional data and records the converted input stream. The recording apparatus (10) comprises a control portion (15) which calculates a target total bit rate which is a target of the input stream on the basis of the recording time of the input stream and the remaining capacity of the recording medium and sets a target bit rate of the video data with respect to the calculated target total bit rate and a transcoder (13) which measures an actual total bit rate of the input stream after starting the bit rate conversion on the basis of the target bit rate of the video data.Type: ApplicationFiled: April 28, 2009Publication date: March 24, 2011Inventors: Hiroshi Takao, Masayasu Kakami
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Publication number: 20100221379Abstract: An ejector apparatus moves a lift core extending through a core of a component of a resin molding mold to form an undercut portion in a molded piece and is installed so as to be capable of moving obliquely with respect to the core surface in a longitudinal direction. An ejector plate is arranged between the core and a base plate below the core, so as to be capable of moving up and down. A slide path is formed in the ejector plate extending in a direction in which a lower end of the lift core makes relative horizontal movement during ascent and descent of the lift core. A slide base is movably arranged in the slide path and coupled to the lower end of the lift core. A guide rod imparts a moving force within the slide path to the lower end of the lift core during ascent and descent of the ejector plate.Type: ApplicationFiled: May 19, 2008Publication date: September 2, 2010Applicant: TAKAO INJECTION MOLD ENGINEERING CO., LTD.Inventor: Hiroshi Takao
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Publication number: 20100169621Abstract: A processor test method of testing a processor includes executing each test instruction of a test instruction sequence to obtain a condition code set by a condition code setting instruction of the test instruction sequence for testing the processor; producing a condition branching instruction to add the produced condition branching instruction to the end of the condition code setting instruction of the test instruction sequence, the condition branching instruction branching to an error output instruction when a condition code that does not match the obtained condition code is supplied; and executing, by an advanced control scheme, a test instruction sequence in which the condition branching instruction is added to the test instruction sequence.Type: ApplicationFiled: December 22, 2009Publication date: July 1, 2010Applicant: FUJITSU LIMITEDInventor: Hiroshi Takao
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Publication number: 20100026225Abstract: Provided is an electric device capable of encouraging a user to perform maintenance in a forceful manner when the performance such as safety, operation efficiency or the like decreases. In an electric device of the present invention, a control circuit controlling an operation of the actuator includes detecting means for detecting a drive condition value which varies in accordance with deterioration of one or a plurality of components forming the electric device, and output limit means for limiting an output of the actuator in accordance with the drive condition value detected by the detecting means.Type: ApplicationFiled: March 27, 2008Publication date: February 4, 2010Applicant: Sanyo Electric Co, Ltd.Inventors: Hiroki Kamei, Hiroshi Takao
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Patent number: 7515398Abstract: In a one-and-a-half circuit breaker system gas-insulated switchgear assembly for three-phase AC transmission, the circuit breakers are located on a common horizontal floor directed in Y direction. First main bus bars extending in X direction are located above the first circuit breakers. The positions of the first main bus bars in different phases are different from one another only in height. Similarly, the second main bus bars extending in X direction are located above the third circuit breakers. Each phase of the main bus bars and disconnecting switches is located in a common horizontal plane. The heights are different for different phases. Relative locations of the disconnecting switches are substantially common for every phase horizontally, but are shifted in the X direction.Type: GrantFiled: March 21, 2006Date of Patent: April 7, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Hiroshi Takao, Masayuki Fukunaga, Reiji Ohara
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Publication number: 20080297078Abstract: A motor control device that controls the driving of a motor having a permanent magnet provided at a rotor has: an angle detector that detects the angle of the rotor by use of an angle sensor; a current detector that detects, as a detected current, the outflow current from or inflow current to a direct-current power source serving as the source for driving the motor; and an angle corrector that corrects the detected angle based on the detected current. The driving of the motor is controlled by use of a corrected angle obtained through the correction by the angle corrector.Type: ApplicationFiled: April 23, 2008Publication date: December 4, 2008Applicant: SANYO ELECTRIC CO., LTD.Inventors: Naoya IWASAKI, Hiroshi TAKAO
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Patent number: 7443130Abstract: In a motor driving control device, a high-frequency alternating voltage or rotation voltage (having a frequency of ?h) is applied to a motor so that magnetic saturation occurs in the motor, thereby extracting, from a ?-axis current, a high-frequency second-harmonic component (a frequency component of 2×?h) that is obtained by attenuating at least a direct-current component of the ?-axis current. The polarity checker detects the polarity of the magnetic pole of the rotor based on the difference, caused by magnetic saturation, between the positive and negative amplitudes of the high-frequency second-harmonic component.Type: GrantFiled: December 5, 2006Date of Patent: October 28, 2008Assignee: Sanyo Electric Co., Ltd.Inventors: Hiroshi Takao, Yoshio Tomigashi
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Patent number: 7245104Abstract: A position-sensorless motor control device has a superposer that superposes, on the drive current with which the motor is driven, a superposed current having a different frequency than the drive current, a superposed component extractor that extracts, from the motor current fed to the motor, the ?-axis and ?-axis components of the superposed current, and a controller that controls the motor so that the direct-current component of the arithmetic product of the extracted ?-axis and ?-axis components of the superposed current converges to zero.Type: GrantFiled: August 14, 2006Date of Patent: July 17, 2007Assignee: Sanyo Electric Co., Ltd.Inventors: Yoshio Tomigashi, Hiroshi Takao