Patent application number | Description | Published |
20120229061 | VOLTAGE CONVERTER AND VOLTAGE CONVERTER SYSTEM INCLUDING VOLTAGE CONVERTER - A voltage converter includes a first circuit and a second circuit. The first circuit includes two or more reactors and at least one switching element. One terminal of each of the reactors is connected in parallel with respect to a power source. The at least one switching element is connected to the other terminal of each of the reactors. The second circuit includes at least one rectifier of which one terminal is connected to the electrical load. The second circuit shares with the first circuit the at least one switching element connected to the at least one rectifier. The first circuit is connected such that the power source charges the respective reactors when the at least one switching element is turned ON. The second circuit is connected such that the reactors discharge power to the electrical load when the at least one switching element is turned OFF. | 09-13-2012 |
20130214709 | AC MOTOR CONTROL APPARATUS - A motor control circuit calculates an α-axis current iα and a β-axis current iβ in a fixed coordinate system based on a W-phase (sensor phase) of an AC motor. The control circuit calculates the α-axis current iα from a current iw.sns sensed in the W-phase, and the β-axis current iβ from a differentiated value Δiα determined from the variation quantity of the α-axis current based on that the α-axis current iα and the β-axis current iβ are in a relation of a sine wave and a cosine wave. Subsequently, the control circuit calculates a current phase xθ=tan | 08-22-2013 |
20130214710 | AC MOTOR CONTROL APPARATUS - A motor control circuit calculates an α-axis current iα and a β-axis current iβ in a fixed coordinate system based on a W-phase (sensor phase) of an AC motor. The control circuit calculates, at each switching time point and each intermediate time point, the α-axis current iα from a current iw.sns sensed in the W-phase, and the β-axis current iβ from a differentiated value Δiα determined from the variation quantity of the α-axis current between every two successive switching time points or intermediate time points. Subsequently, the control circuit calculates a current phase xθ=tan | 08-22-2013 |
20130214711 | AC MOTOR CONTROL APPARATUS - A motor control circuit calculates, based on a sensed current of a sensor phase sensed by a current sensor, an estimated current of the other phase and calculates a d-axis and a q-axis estimated currents based on the sensed current of the sensor phase and the estimated current of the other phase. The motor control circuit further calculates a d-axis and a q-axis command voltages based on the estimated currents thereby to control power supply to the AC motor. When the sensed current of the sensor phase is 0 [A], the command voltages are fixed and the estimated current is interpolated. Thus, variations of the command voltages caused by an error in the estimated current are reduced and a rapid change in the estimated current is reduced. | 08-22-2013 |
20130214712 | AC MOTOR CONTROL APPARATUS - A reference current phase sensing part of a sensor phase (W) calculates an α-axis current iα and a β-axis current iβ in a fixed coordinate system formed with respect to a sensor phase as a base. The α-axis current iα is calculated based on a sensed current iw.sns of the sensor phase and a β-axis current iβ is calculated based on command currents iu* and iv* of the other two phases (U, V) determined from a d-axis command current id* and a q-axis command current iq*. Then a current phase xθ=tan | 08-22-2013 |
20130278184 | AC MOTOR CONTROL APPARATUS - A control apparatus of an AC motor improves an electric current estimation accuracy of the AC motor. The control apparatus includes an electric current estimation unit that repeatedly performs an inverted dq conversion, a dq conversion, and a correction process. Based on a d/q axis electric current estimate values of a previous cycle, the inverted dq conversion calculates an electric current estimate value of a sensor phase. The dq conversion calculates a d/q axis electric current correction values based on an electric current estimation error of the sensor phase, which is derived from the electric current estimate value and the electric current detection value detected by an electric current detector. The correction process calculates the d/q axis electric current estimate values of a current cycle by correcting the d/q axis electric current estimate values of the previous cycle by using the d/q axis electric current correction values. | 10-24-2013 |
20130278185 | AC MOTOR CONTROL APPARATUS - A control apparatus for an AC motor includes a current sensor and an estimation section. The current sensor detects current flowing through one phase of the motor. The estimation section repeats an estimation process. In the estimation process, d-axis and q-axis current estimation values are calculated based on the presently detected current of the one phase and a previous current estimation value of another phase of the motor, and a present current estimation value of each phase is calculated based on smoothed values of the d-axis and q-axis current estimation values. The estimation section performs the estimation process based on a phase lag element. The phase lag element is a difference between the presently detected current and a previous current estimation value of the one phase or the previously detected current. | 10-24-2013 |
20130278186 | AC MOTOR CONTROL APPARATUS - A control apparatus for a three-phase AC motor includes a current sensor and a current estimation section. The current sensor detects current flowing through one phase of the motor. The current estimation section repeats dq transformation and inverse dq transformation in a predetermined cycle. In the dq transformation, a d-axis current estimation value and a q-axis current estimation value in a rotating coordinate system of the AC motor are calculated based on the detected current and a previous current estimation value of another phase of the AC motor. In the inverse dq transformation, a present current estimation value of the other phase to be obtained at a time of angle advance of one period of the cycle is calculated based on smoothed values of the d-axis current estimation value and the q-axis current estimation value. | 10-24-2013 |
20130278187 | AC MOTOR CONTROL APPARATUS - A control apparatus includes an electric current estimation unit to improve a responsiveness of an AC motor. The electric current estimation unit performs, at predetermined intervals, a dq conversion, a correction process, and an inverted dq conversion. The dq conversion calculates d/q axis electric current estimate values based on a detection value of a sensor phase from a sensor, and on an electric current estimate values of two phases of the AC motor other than the sensor phase from a previous cycle. The correction process corrects, during the dq conversion, the d/q axis electric current estimate values in an orthogonal direction that is orthogonal to a sensor phase axis. The inverted dq conversion calculates the electric current estimate values of the two phases other than the sensor phase based on the d/q axis electric current estimate values corrected by the correction process and smoothed by a low-pass filter process. | 10-24-2013 |
20130278188 | AC MOTOR CONTROL APPARATUS - A control apparatus of an AC motor improves an electric current estimation accuracy of the AC motor, which includes a three phase motor with an electric current detector to detect an electric current detection value of one of the three phases (a sensor phase). The control apparatus includes an electric current estimation unit that repeatedly performs an inverted dq conversion and a dq conversion. The inverted dq conversion calculates an electric current estimate values for phases other than the sensor phase based on the d/q axis electric current estimate values of a previous cycle. The dq conversion calculates the d/q axis electric current estimate values of a current cycle in a rotation coordinate system of the AC motor based on the electric current estimate values calculated by the inverted dq conversion and the electric current detection value of the sensor phase detected by the electric current detector. | 10-24-2013 |
20140091740 | CONTROL DEVICE FOR AC MOTOR - A control device for a three-phase alternate current motor, includes: a control phase current acquisition means; a monitor phase current acquisition means; a rotation angle acquisition means; a two-phase control current value current calculation means; a one-phase current estimated value estimation means; a voltage command value calculation means; an other phase current estimation means for calculating a monitor or a control phase current estimated value; an abnormality detection means for detecting an abnormality in a monitor phase or a control phase current sensor; and a switching means for switching between a monitoring stop mode, in which the voltage command value is calculated based on the two-phase control current value, and a monitoring mode, in which the voltage command value is calculated based on the one-phase current estimated value, and the abnormality detection means detects the abnormality, at predetermined time intervals. | 04-03-2014 |
20140091742 | CONTROL DEVICE FOR AC MOTOR - A control device for a three-phase alternate current motor includes: an inverter for driving the motor; current sensors for sensing current in the motor; and a control means having a feedback control operation part for operating a voltage command of each phase and switching the inverter based on the voltage command. When an absolute value of a sum of the current sensed values of three phases is larger than a threshold, the control means: executes a provisional current sensor system abnormality determination; generates a variation visualizing state, in which a response of a feedback control with respect to a variation in the current sensed value caused by the abnormality is delayed or stopped; and performs a phase identification processing for identifying the current sensor on a phase, in which an absolute value of a current deviation is larger than a threshold. | 04-03-2014 |
20140091743 | CONTROL DEVICE FOR AC MOTOR - A control device for a three-phase AC motor includes: an inverter having switching elements; current sensors for sensing a current in the motor; and a control means having a feedback control operation part for operating a voltage command of each phase and switching the switching elements based on the voltage command. When a positive and negative offset abnormality occurs, the control means executes a positive and negative offset abnormality detection process that the control means compares a value, which is obtained by integrating a variation in a voltage command of each phase over a predetermined detection interval, with a predetermined abnormality threshold value, the voltage command being outputted by the feedback control operation part with respect to a variation in the current caused by the positive and negative offset abnormality. | 04-03-2014 |
20140091744 | CONTROL DEVICE FOR AC MOTOR - A control device for a three-phase alternate current motor includes: a control phase current acquisition means; a monitor phase current acquisition means; a rotation angle acquisition means; a two-phase control current value calculation means; a one-phase current estimated value estimation means; a voltage command value calculation means; an other phase current estimation means for calculating a monitor or a control phase current estimated value; an abnormality detection means for detecting an abnormality in a monitor phase or a control phase current sensor; a number-of-revolutions calculation means for the motor; a number-of-revolutions determination means for determining whether the number of revolutions is not larger than a predetermined determination value; and a switching means between a two-phase control mode when the number of revolutions is not larger than the determination value and a one-phase control mode when the number of revolutions is larger than the determination value. | 04-03-2014 |
20140103844 | CONTROL DEVICE OF AC MOTOR - A control device for controlling an AC motor with an inverter includes: a current acquisition device of a sensor phase current sensed value of the motor in a sensor phase current sensing cycle; a rotation angle acquisition device of a rotation angle sensed value of the motor; a current command value operation device for updating a current command value in a command update cycle; a current estimation device; a voltage command value operation device; a drive signal generation device; and a sudden change prevention device for preventing the voltage command value from a sudden change according to a sudden change in the current estimated value. The sudden change of the current estimated value is caused by a sudden change in the current command value. | 04-17-2014 |
20140117893 | CONTROL APPARATUS FOR AC MOTOR - A current estimation section of a motor control apparatus carries out the following processing. When an AC motor is controlled under a current feedback control scheme (sine wave control mode or overmodulation control mode), a β-axis current iβ is calculated based on a current detection value iw_sns in a sensor phase and a current command value iv* in one other phase. When the AC motor is controlled under a torque feedback control scheme (rectangular wave control mode), the β-axis current iβ is calculated based on a differential value Δiα of an α-axis current. Then a sensor phase reference current phase θx is calculated to estimate a U-phase current. Thus it is possible to use the current feedback control scheme and the torque feedback control scheme together. | 05-01-2014 |
20140184114 | CONTROL APPARATUS FOR AC MOTOR - An apparatus for controlling an AC motor driven by an inverter includes a two-phase calculator for calculating a two-phase control current value based on a first-phase current, a second-phase current, and a rotation angle of the motor, a one-phase calculator for calculating a one-phase control current value based on the first-phase current and the rotation angle, a determinator for determining whether a sudden change occurs based on a fluctuation in a rotation speed of the motor, a switch for selecting the one-phase control current value as a fixed value when no sudden change occurs and selecting the two-phase control current value as the fixed value when the sudden change occurs, and a voltage command value calculator for calculating a voltage command value related to a voltage applied to the inverter based on the current fixed value and a drive command value related to driving of the AC motor. | 07-03-2014 |
Patent application number | Description | Published |
20110167954 | CAM DEVICE - In order to make easy to change the size of a cam device in the course of press mold design, there is provided a cam device including: a cam holder; a cam slider, and a cam driver, wherein the cam devices are grouped depending on the basis of width dimensions in combination of hardness of a sliding contact surface of the cam holder and a sliding contact surface on the cam slider end, and hardness of a cam surface of the cam driver and a cam surface of the cam slider, and the design structures of the respective groups are determined in such a manner that the maximum process ability in a certain group among the groups is larger than the minimum process ability of an adjacent group having a larger width dimension, and smaller than the maximum process ability in an adjacent group having a smaller width dimension. | 07-14-2011 |
20110202158 | METHOD OF DESIGNING AND MANUFACTURING CAM DEVICE AND THREE-DIMENSIONAL DESIGN-SUPPORT COMPUTER PROGRAM FOR THE SAME - There is provided a method of designing and manufacturing a cam device using a three-dimensional design-support computer program including a customer setup program for customers and a manufacture setup program for cam device manufactures being configured to generate different finenesses in 3D models and characteristic values of cam performance as a result of design of the cam device, and being configured to obtain a result which indicates the same cam device except for fineness and the required calculation items when the same parameters are loaded. The customer setup program is lent from the cam device manufacture to the customer, and detailed design to constructional details of the cam device is performed using the manufacture setup program on the basis of design data created using the customer setup program and handed to the cam device manufacturer, whereby the cam device is manufactured on the basis of a detailed design drawing. | 08-18-2011 |
20140208891 | CAM DEVICE - In order to make it easy to change the size of a cam device in the course of press mold design, there is provided a cam device including: a cam holder; a cam slider; and a cam driver, wherein the cam devices are grouped depending on the basis of width dimensions in combination of hardness of a sliding contact surface of the cam holder and a sliding contact surface on the cam slider end, and hardness of a cam surface of the cam driver and a cam surface of the cam slider, and the design structures of the respective groups are determined in such a manner that the maximum process ability in a certain group among the groups is larger than the minimum process ability of an adjacent group having a larger width dimension, and smaller than the maximum process ability in an adjacent group having a smaller width dimension. | 07-31-2014 |
20150273556 | CAM DEVICE - In order to make it easy to change the size of a cam device in the course of press mold design, there is provided a cam device including: a cam holder; a cam slider; and a cam driver, wherein the cam devices are grouped depending on the basis of width dimensions in combination of hardness of a sliding contact surface of the cam holder and a sliding contact surface on the cam slider end, and hardness of a cam surface of the cam driver and a cam surface of the cam slider, and the design structures of the respective groups are determined in such a manner that the maximum process ability in a certain group among the groups is larger than the minimum process ability of an adjacent group having a larger width dimension, and smaller than the maximum process ability in an adjacent group having a smaller width dimension. | 10-01-2015 |
20150273557 | CAM DEVICE - In order to make it easy to change the size of a cam device in the course of press mold design, there is provided a cam device including: a cam holder; a cam slider; and a cam driver, wherein the cam devices are grouped depending on the basis of width dimensions in combination of hardness of a sliding contact surface of the cam holder and a sliding contact surface on the cam slider end, and hardness of a cam surface of the cam driver and a cam surface of the cam slider, and the design structures of the respective groups are determined in such a manner that the maximum process ability in a certain group among the groups is larger than the minimum process ability of an adjacent group having a larger width dimension, and smaller than the maximum process ability in an adjacent group having a smaller width dimension. | 10-01-2015 |
Patent application number | Description | Published |
20100024790 | AIR-FUEL RATIO CONTROL SYSTEM OF A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE - An air-fuel ratio control system of a multi-cylinder internal combustion engine provided with a throttle valve and opening characteristic control means, which system performs feedback control of an air-fuel ratio based on an output of a sensor detecting an air-fuel ratio of exhaust gas and is capable of performing more accurate air-fuel ratio control, is provided. In the feedback control, the relationship of the output of the sensor and a feedback value is corrected based on a feedback learning correction value learned and determined based on the output of the sensor during the feedback control, and, when newly learning the feedback learning correction value, the intake air amount is controlled by only the throttle valve. | 02-04-2010 |
20100047133 | Exhaust Gas Purifying Apparatus for Internal Combustion Engine - The present invention has an object to provide an exhaust gas purifying apparatus for an internal combustion engine capable of obtaining accurate temperature information relating to a catalyst placed in an exhaust passage of the internal combustion engine. The degree of influence emthc of a catalyst inlet gas temperature and catalyst rear end temperature ethuf[end] is calculated (Step | 02-25-2010 |
20100191406 | CONTROL APPARATUS FOR VEHICLE DRIVE UNIT - A control apparatus for a vehicle drive unit including a control structure of a hierarchical type having a demand generation level, a mediation level, and a control variable setting level and a signal is transmitted in one direction from a higher level of hierarchy to a lower level of hierarchy. The demand generation level includes demand output elements for each capability. The mediation level includes mediation elements, each corresponding to a classified category of demands. Each of the mediation elements collects demand values of the category of which the mediation elements are in charge and performs mediation according to a rule to arrive at a single demand value. The control variable setting level includes an adjuster portion adjusting each of the mediated demand values based on a relationship between each other and control variable calculation elements calculating a control variable of each of a plurality of actuators based on the adjusted demand value. | 07-29-2010 |
20100268436 | CONTROL DEVICE FOR VEHICLE DRIVE UNIT - This invention is intended to ensure that a control device for a vehicle drive unit is capable of realizing desired torque by making the main-actuator and sub-actuator collaborate adequately while holding the interposition of the sub-actuator as low as possible. For this end, a future target of torque that is going to be output from the engine and a realization timing of the future target are taken as reservation information for reserving engine torque regulation. Next, the required period, which is required to realize the future target when a main-actuator (a throttle) is operated to regulate the torque, is computed from a current engine operating condition. Then, the operation of the main-actuator is started at the timing preceding the realization timing by the required period for realizing the future target. In parallel with that, a sub-actuator (an ignition system) is operated to cancel out a torque change induced by the operation of the main-actuator during the period from the start timing of the operation of the main-actuator to the realization timing. | 10-21-2010 |
20150277988 | PARALLEL COMPUTING DEVICE - The present invention relates to a multi-core parallel computing device that repeatedly processes a plurality of tasks having a restricted processing completion time using one or more cores having a variable operation frequency. When activating a new core and allocating the plurality of tasks to the new core and an operating core, the parallel computing device according to the present invention increases the operation frequency of the operating core. | 10-01-2015 |
Patent application number | Description | Published |
20150022614 | Printer and Recording Medium - The disclosure discloses a printer including a housing, a cartridge holder, a display device, a color detecting portion, and a control portion. The cartridge holder removably mounts a tape cartridge including a print-receiving tape roll and an ink ribbon roll. The display device displays a desired content in monochrome. The color detection portion detects first color information representing a color of a print-receiving tape and second color information representing a color of an ink ribbon, in the tape cartridge mounted in the cartridge holder. The control portion controls the display device at appropriate timing with an opening and closing cover closed, to display in text the first color information and the second color information detected by the color detection portion. | 01-22-2015 |
20150022831 | Recording Medium and Printer - This disclosure discloses a non-transitory computer-readable recording medium storing a printed matter production processing program for executing steps. The steps comprise an edition-screen display step, a database display step, a region-specification reception step, and a print-object arrangement step. In the edition-screen display step, an edition screen is displayed for receiving an input operation of the print object to be arranged in each of at least one block. In the database display step, a database that is stored in the memory and includes plurality of records is displayed. In the region-specification reception step, specification of a character-string including region is received. The character-string including region includes a plurality of character strings to be allocated as print objects. In the print-object arrangement step, the plurality of character strings included in the character-string including region are allocated to each of the block in accordance with a desired allocation rule. | 01-22-2015 |
20150029287 | Printer - The disclosure discloses a printer including a controller. The controller executes a first control, a second control and a switching control. In the first control, it is achieved that a first coordinated state wherein a pulse/dot ratio when a pulse motor rotates at a first rotation speed is set to a first ratio. In the second control, it is achieved that a second coordinated state wherein the pulse/dot ratio when the pulse motor rotates at a second rotation speed is set to a second ratio that is smaller than the first ratio. In the switching control, the pulse/dot ratio is gradually decreased from the first ratio to the second ratio when the first coordinated state is switched to the second coordinated state, and is gradually increased from the second ratio to the first ratio when the second coordinated state is switched to the first coordinated state. | 01-29-2015 |
20150042741 | Printer, Printing Processing Method, and Recording Medium - The disclosure discloses a printer including a first memory, a color detecting portion, a color identification information determining portion, and a transmitting portion. The first memory stores color correlations between a plurality of color types and a plurality of color identification information. The color detecting portion detects first color information of a print-receiving tape and second color information of an ink ribbon, of a tape cartridge mounted to a cartridge holder. The color identification information determining portion determines first color identification information of a color type corresponding to the first color information, and second color identification information of a color type corresponding to the second color information, by referring to color correlations. The transmitting portion transmits the first color identification information and the second color identification information to an operation terminal comprising substantially the same color correlations as the color correlations. | 02-12-2015 |
20160059590 | Print Label Producing Apparatus - The disclosure discloses a print label producing apparatus including a controller. The controller is configured to execute a print contents acquisition process, a cut pattern acquisition process, a coordination control process, and a display control process. In a cut pattern acquisition process, specification of a cut pattern related to formation of a full-cut position and a half-cut position in producing a print label is acquired. In a coordination control process, print contents acquired are formed on a print-receiving tape, and the half-cut position or the full-cut position are formed in accordance with the cut pattern acquired. In a display control process, a display device is controlled to display an appearance image of a print label together with an identification display of all cut positions of the full-cut position and the half-cut position. | 03-03-2016 |
Patent application number | Description | Published |
20100103932 | DATA DISTRIBUTION APPARATUS, RELAY APPARATUS AND DATA DISTRIBUTION METHOD - A distribution apparatus includes a packet divider which divides contents data into multiple contents data and packetizing each of the divided contents data to generate a transfer packet. A priority degree setter assigns a phase to each transfer packet generated by the packet divider according to each position in contents data and sets, for each transfer packet to which the phase has been assigned, a priority degree indicating the degree of priority of being transmitted to a transmission destination. A packet transmitter transmits the transfer packets to which the priority degrees have been set by the priority degree setter, beginning with the top of the contents data. A phase controller, when one round of transmission of all the transfer packets by the packet transmitter ends, performs control so that the phase assigned to each of the transfer packets is changed. | 04-29-2010 |
20110158412 | INFORMATION DISCLOSURE APPARATUS - An information tray creation apparatus generates a pair of an encryption key and a decoding key, encrypts disclosure information using the encryption key, and generates encrypted disclosure information. Next, the information tray creation apparatus encrypts a decoding key using a public key of a disclosure destination, and generates decoding key information. The information tray creation apparatus adds a pair of the disclosure destination and the decoding key information to disclosure destination information in an information tray as one record. The information tray creation apparatus then adds pairs of disclosure destinations and decoding key information to the disclosure destination information in the information tray for all information destinations. | 06-30-2011 |
20110191404 | DELIVERY SYSTEM, AGENT SERVER, AND DELIVERY METHOD - An SIP server determines whether the number of increased audiences is a switching from unicast to multicast “(U2M) threshold value”, stored in a connection threshold value storing unit, or more in a case where a viewing request is received from a viewing device and determines whether the number of decreased audiences is less than an “M2U threshold value” when a viewing end is received from a viewing device. As a result, multicast transmission is controlled to be performed in a case where the number of delivery requests is determined to be the “U2M threshold value” or more, and unicast transmission is controlled to be performed in a case where the number of delivery requests is less than the “M2U threshold value”. | 08-04-2011 |
Patent application number | Description | Published |
20130188481 | NETWORK SYSTEM, OFFLOAD DEVICE, AND OFFLOAD TRAFFIC CONTROL METHOD - A network system includes: a plurality of base stations, each with which a mobile station communicates; a core network to include the plurality of base stations; and a plurality of offload devices, each being arranged between the base station and a node device included in the core network, each to serve as the node device of an anchor point at which traffic to be offloaded is transmitted/received to/from an offload network, and each to serve as the node device of a relay point at which the traffic to be offloaded is relayed between the anchor point and one of the plurality of base stations with which the mobile station is communicating. | 07-25-2013 |
20130189994 | NETWORK SYSTEM, OFFLOAD DEVICE, AND USER IDENTIFICATION INFORMATION OBTAINING METHOD FOR OFFLOAD DEVICE - A network system includes: a plurality of base stations, each with which a mobile station communicates; a core network to include one or more gateways, each with which the plurality of base stations communicates; a plurality of offload devices, each arranged between the base station and the gateway, each to serve as the gateway of an anchor point at which traffic to be offloaded is transmitted to or received from an offload network, and each to serve as the gateway of a relay point at which the traffic to be offloaded is relayed between the anchor point and one of the plurality of base stations with which the mobile station is communicating; a control station to control the traffic between the mobile station and the gateway; and one or more interception devices, each to intercept the traffic between the control station and the gateway. | 07-25-2013 |
20140029501 | OFF-LOAD APPARATUS, NETWORK SYSTEM, AND HANDOVER METHOD OF MULTICAST TRAFFIC - An off-load apparatus is disposed between a core network accommodating base stations and the base stations capable of connection with a mobile station. The off-load apparatus includes a storage unit that stores line information and multicast viewing information of the mobile station when the mobile station performs multicast communication of an off-load object via the off-load apparatus; a transferring unit that transfers the line information and the multicast viewing information of the mobile station to another off-load apparatus that is an handover destination when the mobile station moves during the multicast communication; and a control unit that executes a process of participating in multicast viewing on behalf of the mobile station when the off-load apparatus acts as a handover-destination apparatus, based on the multicast viewing information transferred from a handover-source off-load apparatus. | 01-30-2014 |
20140289532 | VALIDITY DETERMINATION METHOD AND VALIDITY DETERMINATION APPARATUS - A validity determination method includes having a receiving apparatus of electronic data identify a public key corresponding to an electronic signature attached to the received electronic data among one or more public keys having respective valid terms, send a resend-request of the electronic data if the identified public key is not valid, and determine validity of the electronic data based on whether the electronic data is resent in response to the resend-request; and having a sending apparatus of the electronic data resend the electronic data to the receiving apparatus in response to receiving the resend-request if the sending apparatus has sent the electronic data relevant to the resend-request in a past. | 09-25-2014 |
20140293779 | ROUTE SELECTING APPARATUS, ROUTE SELECTING METHOD, AND COMMUNICATION SYSTEM - A first route selecting apparatus that is included among a plurality of route selecting apparatuses includes an acquiring unit that acquires for handover of communication currently relayed by the first route selecting apparatus, a selection state of a relay route of a second route selecting apparatus that is included among the route selecting apparatuses that each selects from among a first route and a second route, a relay route between a mobile terminal and a communication destination, and that when a traffic amount of the first route becomes at least a predetermined amount, selects the second route for communication established for a communication request issued thereafter; and a selecting unit that according to the acquired selection state, selects the second route for the currently relayed communication even when the traffic amount of the first route is less than the predetermined amount. | 10-02-2014 |
20160006692 | MONITORING DEVICE AND MONITORING METHOD - A monitoring device to operate as a first monitoring device in a network including communication devices and monitoring devices, the monitoring device includes: an acquisition unit to acquire information of packets transmitted or received by a first communication device monitored by the first monitoring device; a transmission unit to transmit a first join request message to a first multicast group in which a second monitoring device performs notification of communication information of a second communication device monitored by the second monitoring device, when the first communication device communicates with the second communication device, after the first communication device communicates with an external device not included in the network; and a determination unit to determine whether the external device is performing unauthorized access to the second communication device via the first communication device, based on packets transmitted from the second monitoring device to the first multicast group. | 01-07-2016 |
Patent application number | Description | Published |
20110318655 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, NON-AQUEOUS ELECTROLYTE, AND METHOD FOR FABRICATNG NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery is described, capable of inhibiting the raise of the internal resistance at a low temperature after use in a high-temperature circumstance, and having a good power performance at a low temperature. The non-aqueous electrolyte secondary battery has a non-aqueous electrolyte, and is characterized in containing a sulfate ester with a specific structure in an amount of 4.0 wt % or less relative to the total weight of the non-aqueous electrolyte. | 12-29-2011 |
20120064396 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR FABRICATNG NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery includes a positive electrode containing a positive-electrode active material, a negative electrode containing a negative-electrode active material, and a non-aqueous electrolyte, and is characterized in that the non-aqueous electrolyte contains 1.0 wt % or less of a compound represented by formula (1) and 2.0 wt % or less of a cyclic sulfate ester represented by formula (2), based on the total weight of the non-aqueous electrolyte. By using the non-aqueous electrolyte including a specified amount of the compound represented by formula (1) and a specified amount of the cyclic sulfate ester, when the battery is used at a low temperature after being stored at a high temperature, the increase of the internal resistance is inhibited. | 03-15-2012 |
20130183580 | ENERGY STORAGE ELEMENT, METHOD OF PRODUCING ENERGY STORAGE ELEMENT, AND NON-AQUEOUS ELECTROLYTE - An energy storage element, wherein a non-aqueous electrolyte contains lithium difluorobis(oxalato)phosphate that is a first additive represented by Formula (1): | 07-18-2013 |
20130244072 | ENERGY STORAGE DEVICE, WINDING APPARATUS, AND WINDING METHOD - An energy storage device includes: a core; and a wound body including, layered and wound around the core: a positive electrode, a negative electrode, and two separators, one of which is interposed between the positive electrode and the negative electrode and each having a first surface and a second surface. The first surface has thermal bonding properties superior to thermal bonding properties of the second surface, and at least one of the two separators is bonded to the core via the first surface thereof. | 09-19-2013 |
20150092320 | ELECTRIC STORAGE DEVICE - An electric storage device having a positive electrode, a negative electrode, a separator located between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The positive electrode has a positive substrate layer, a positive composite layer containing a positive active material, and an undercoat layer located between the positive substrate layer and the positive composite layer. A density of the positive composite layer is 2.1 g/cm | 04-02-2015 |
20150093647 | BATTERY - A battery includes a positive electrode, a negative electrode including a negative active material layer containing hardly-graphitizable carbon as a negative active material and an aqueous binder, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The negative active material layer has a density of not less than 0.81 g/cc and not more than 1.01 g/cc. The negative active material has a particle size D90 of not less than 1.9 μm and not more than 11.5 μm, the particle size D90 being a particle size at which the cumulative volume is 90% in the particle size distribution. | 04-02-2015 |
20150340677 | ENERGY STORAGE DEVICE, ENERGY STORAGE APPARATUS, VEHICLE, AND METHOD FOR USING ENERGY STORAGE DEVICE - An energy storage device comprises a positive electrode, a negative electrode, a separator arranged between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The negative electrode has a negative substrate layer, and a negative composite layer arranged on the surface of the negative substrate layer. The separator has a separator substrate layer. The negative composite layer contains a non-graphitizable carbon having a particle diameter D50 of 2.0 μm or more and 6.0 μm or less. A corrected negative electrode density, which is defined as a value obtained by dividing, by a thickness of the separator substrate layer, a value obtained by multiplying a density of the negative composite layer by a thickness of the negative composite layer, is 1.2 (g/cm | 11-26-2015 |
20150340737 | METHOD FOR PRODUCING ENERGY STORAGE DEVICE AND ENERGY STORAGE DEVICE - A method including: a placing step of placing an electrode assembly including a positive electrode that contains a positive active material and a negative electrode that contains a negative active material, and an electrolyte solution containing an additive in a container; a charging step of charging the electrode assembly placed in the container; and a hermetically sealing step of hermetically sealing the container after the charging step. When starting charging in the charging step, the electrolyte solution contains 1.0 mass % or less of lithium difluoro bis(oxalate)phosphate as the additive. The charge voltage in the charging step is 4.0 V or more. | 11-26-2015 |
20150349326 | ENERGY STORAGE DEVICE - An energy storage device comprising: a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, a nonaqueous electrolyte, and an insulating layer disposed between the positive electrode and the separator, wherein the positive electrode contains a compound represented by Li | 12-03-2015 |
20160064775 | ENERGY STORAGE DEVICE - Provided is an energy storage device including an electrolyte solution including a compound represented by the general formula (1), a compound represented by the general formula (2), and a compound represented by the general formula (3): | 03-03-2016 |
20160093860 | ENERGY STORAGE DEVICE AND METHOD OF PRODUCING ENERGY STORAGE DEVICE - An energy storage device includes a positive electrode provided with a positive composite layer containing a positive active material, a negative electrode provided with a negative composite layer containing a negative active material, and a separator partitioning between the positive electrode and the negative electrode, wherein the separator includes a substrate uniaxially drawn into a sheet shape and a coating layer coating at least one of surfaces of the substrate, and the coating layer has an anisotropic structure with orientation in a direction different from a drawing direction of the substrate. | 03-31-2016 |
Patent application number | Description | Published |
20120288751 | Electric Storage Device - Provided is an electric storage device including a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, a nonaqueous electrolyte solution in which an electrolyte is dissolved in a nonaqueous solvent, wherein an inorganic filler layer is disposed between the positive electrode and the negative electrode and the nonaqueous electrolyte solution contains lithium difluorobis(oxalato)phosphate. | 11-15-2012 |
20130130079 | MANUFACTURING METHOD OF SECONDARY BATTERY, SECONDARY BATTERY, AND ASSEMBLED BATTERY - A secondary battery includes an opening portion provided to a case. A first sealing body is provided to the opening portion, the first sealing body being displaced or deformed by a pressure difference between an inside and an outside of the case in such manners that the first sealing body is pressed by internal pressure to allow outflow of inside air from the opening portion when the internal pressure in the case is higher than external pressure and that the first sealing body is pressed by the external pressure to prevent entry of outside air from the opening portion when the internal pressure in the case is lower than the external pressure. Pressure in a space surrounded with the case and the first sealing body is set to be lower than pressure outside the space. | 05-23-2013 |
20130280568 | ENERGY STORAGE DEVICE, WINDING APPARATUS, AND WINDING METHOD - Provided is an energy storage device which employs the use of a separator provided with a layer having poor thermal properties such as a heat resistant coated layer and is capable of inhibiting a decrease in performance. The energy storage device includes: a wound body including a positive electrode, a negative electrode, and separators which are layered and wound, the separators being interposed between the positive electrode and the negative electrode and having a first surface and a second surface, the first surface having thermal bonding properties superior to thermal bonding properties of the second surface; and an insulation sheet wound around an outermost layer of the wound body. At least one of the separators is bonded to the insulation sheet via the first surface thereof. | 10-24-2013 |
20140017549 | ENERGY STORAGE DEVICE - An energy storage device including a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte, wherein the negative electrode includes non-graphitizable carbon as a negative electrode active material, and the separator has a thickness of 10 to 30 μm and an air permeability of 10 to 180 sec/100 cc. | 01-16-2014 |
20140154557 | ENERGY STORAGE DEVICE AND ENERGY STORAGE UNIT - An energy storage device including a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte, wherein the negative electrode includes a negative electrode active material layer containing a non-graphitizable carbon as a negative electrode active material, and the negative electrode active material has a negative electrode active material weight per unit volume of the negative electrode active material layer of 0.92 g/cc or more and 1.13 g/cc or less and a particle size D90 of 4.3 μm or more and 11.5 μm or less, the particle size D90 being a particle size in particle size distribution in which a cumulative volume is 90%. | 06-05-2014 |
20140154559 | Energy Storage Unit - An energy storage unit having plural energy storage devices, each of which includes a container housing an electrode assembly and positive and negative electrode terminals electrically connected to the electrode assembly and extending from the container in the same direction, includes: a bus bar electrically connecting a first terminal, which is one of the positive electrode terminal and the negative electrode terminal of a first energy storage device included in the plural energy storage devices, and a second terminal, which is one of the positive electrode terminal and the negative electrode terminal of a second energy storage device included in the plural energy storage devices and opposite in polarity to the first terminal; a packing member interposed between the first terminal and the container of the first energy storage device; and an insulating member interposed between the bus bar and the container of the first energy storage device. | 06-05-2014 |
20140176074 | Electric Storage Device - Provided is an electric storage device including a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, a nonaqueous electrolyte solution in which an electrolyte is dissolved in a nonaqueous solvent, wherein an inorganic filler layer is disposed between the positive electrode and the negative electrode and the nonaqueous electrolyte solution contains lithium difluorobis(oxalato)phosphate. | 06-26-2014 |
20140295220 | ELECTRIC STORAGE DEVICE AND ELECTRIC STORAGE APPARATUS - An electric storage device is provided with an electrode assembly including a positive electrode plate and a negative electrode plate; a case for housing the electrode assembly; a positive-electrode external terminal arranged on an outer surface of the case and electrically connected to the positive electrode plate; a negative-electrode external terminal arranged on an outer surface of the case and electrically connected to the negative electrode plate; and a gas exhaust valve formed in a region of the case on the opposite side of a region where the positive-electrode external terminal and the negative-electrode external terminal are arranged. | 10-02-2014 |
20140370393 | ENERGY STORAGE DEVICE AND ENERGY STORAGE MODULE - Provided is an energy storage device provided with a negative electrode including a negative substrate having a surface, and a negative composite layer formed on the surface of the negative substrate and including a negative active material; a positive electrode including a positive substrate, and a positive composite layer formed on the positive substrate and including a positive active material; and a separator placed between the positive electrode and the negative electrode. 10% cumulative diameter D10 in the particle size distribution of the negative active material on a volume basis is 1.3 μm or more, and 90% cumulative diameter D90 in the particle size distribution of the negative active material on a volume basis is 8.9 μm or less. The surface of the negative substrate has a center line roughness Ra of 0.205 μm or more and 0.781 μm or less, and has a center line roughness Ra to a ten-point mean height Rz of 0.072 or more and 0.100 or less. | 12-18-2014 |
20140376160 | ELECTRIC STORAGE DEVICE AND ELECTRIC STORAGE MODULE - An electric storage device includes: a positive electrode; a negative electrode; and a separator placed between the positive electrode and the negative electrode. The positive electrode includes a positive electrode substrate, a positive active material layer formed on the positive electrode substrate, and a protective layer that covers at least one of side surfaces in a width direction of the positive active material layer. The negative electrode includes a negative electrode substrate and a negative active material layer formed on the negative electrode substrate. The separator includes a separator substrate opposed to the negative active material layer, and an inorganic layer containing a binder, the inorganic layer formed on the separator substrate and opposed to the positive active material layer. | 12-25-2014 |
20140377629 | ENERGY STORAGE DEVICE AND ENERGY STORAGE MODULE - In the state where a positive electrode and a separator are held in a case, the value of the ratio of the tensile elongation in a first direction of the separator to the tensile elongation in the first direction of a positive electrode substrate is from 4 to 68. In the same state, the value of the ratio of the tensile elongation in a second direction of the separator to the tensile elongation in the second direction of the positive electrode substrate is from 4 to 68. The value of the ratio of the thickness of a heat-resistant layer to the thickness of the positive electrode substrate is from 0.25 to 0.70. The proportion by mass of heat-resistant particles contained in the heat-resistant layer is from 30 to 99% by mass of the heat-resistant layer. | 12-25-2014 |
20150093620 | ELECTRIC STORAGE DEVICE AND ELECTRIC STORAGE APPARATUS - An electric storage device includes: an electrode assembly in which electrodes are wound such that paired curved portions and a straight portion connecting the paired curved portions are formed; a case which houses the electrode assembly, the case comprising a convex part protruding toward the straight portion of the electrode assembly to support the straight portion; and a support portion which supports the curved portion toward an inside of the electrode assembly. | 04-02-2015 |
20150140382 | ELECTRIC STORAGE DEVICE AND ELECTRIC STORAGE DEVICE MODULE - An electric storage device includes an electrode assembly including a winding core and electrodes, and a case. The case and the winding core each have a rigidity satisfying 0.01≦P | 05-21-2015 |