Patent application number | Description | Published |
20080231109 | Brake apparatus - An object of the present invention is to provide a brake apparatus in which a hydraulic pressure in a master cylinder is prevented from being increasingly varied while an anti-lock brake system is in operation, and therefore a pedal feeling can be improved. The brake apparatus comprises an electric booster including an input member which moves forward or backward in response to an operation of a brake pedal, an assist member which moves forward or backward by being driven by an electric actuator using an electric motor as its driving source. The electric booster generates a boosted brake hydraulic pressure in the master cylinder under an input thrust provided to the input member through the brake pedal and an assist thrust provided to the assist member by the electric actuator. In the brake apparatus, the brake hydraulic pressure generated in the master cylinder is supplied to a wheel cylinder through a hydraulic pressure circuit of an anti-lock brake system, and, while the anti-lock brake system in operation, an operation of the assist member is restricted by a booster control, whereby a change in a hydraulic pressure in the master cylinder due to the operation of the assist member can be restrained. | 09-25-2008 |
20090178404 | Electrically driven brake booster and master cylinder - An electric booster according to the present invention comprises a booster piston disposed around an input piston so as to movable relative to the input piston. The booster piston and input piston also serve as a primacy piston of a tandem master cylinder. A brake fluid pressure is generated in the tandem master cylinder by an input thrust force provided from a brake pedal to the input piston and a booster thrust force provided from the electronic actuator to the booster piston. In this electric booster, a slide hole is formed through the secondary piston of the tamed master cylinder in the axial direction therefore, and a rod member is slidably disposed through the slide hole. When the fluid pressure is not increased in the primary pressure chamber, due to the fluid pressure in the secondary pressure chamber, the rod member comes to abut against the input piston, and a reactive force in the secondary pressure chamber is returned to the brake pedal. | 07-16-2009 |
20110246039 | ELECTRIC BRAKE APPARATUS - Even when a rigidity table stored in a RAM at the time of a start of a brake operation does not coincide with a actual rigidity characteristic (pressing force characteristic in relation to positions) of an electric caliper which changes according to brake conditions including how often and how long a brake operation is applied, it is possible to reduce a deviation between a pressing force instruction value and a generated pressing force by updating the characteristic of the relation between a pressing force instruction value and rotational position (rigidity table) each time an estimated thrust force value is calculated during one brake operation. In other words, it is possible to steadily keep followability to a pressing force instruction according to an actual state of the rigidity characteristic of the electric caliper, thereby ensuring generation of an appropriate brake force. | 10-06-2011 |
20120193177 | ELECTRIC BRAKE APPARATUS - The present invention provides an electric brake apparatus capable of maintaining predetermined control accuracy despite wear of a brake pad and other changes over time. The electric brake apparatus compares an estimated thrust force corresponding to a predetermined rotational position of an electric motor, which is calculated from an electric current/thrust force conversion function, with a reference thrust force based on a rotational position/thrust force table indicating a relationship between the rotational position of the electric motor and a thrust force of a piston to correct and update the electric current/thrust force conversion function, thereby maintaining predetermined control accuracy despite wear of the brake pad and other changes over time. | 08-02-2012 |
20130261917 | DISC BRAKE APPARATUS - The present invention provides a disc brake apparatus, in which, at the time of a parking brake release operation, a control unit configured to control driving of an electric motor drives the electric motor so as to cause a piston holding mechanism to stop holding a piston, detects separation of a brake pad from a disk, and then stops driving the electric motor after driving the electric motor by a predetermined amount based on a current value of the electric motor. | 10-03-2013 |
20150061365 | BRAKE SYSTEM - A brake system includes a brake apparatus. This brake apparatus is configured to keep a vehicle braked by an electric mechanism in response to a parking brake request signal, and brake the vehicle by supply of a hydraulic pressure from a hydraulic source in response to an operation performed on a brake pedal. The brake system further includes a controller configured to drive the electric mechanism until a target pressing force is acquired to establish a brake holding state in response to the parking brake request signal. The controller is configured to change the target pressing force according to a change in a hydraulic pressure in the brake apparatus after starting driving the electric mechanism in response to the parking brake request signal. | 03-05-2015 |
Patent application number | Description | Published |
20100156996 | LIQUID DISCHARGE HEAD AND METHOD OF MANUFACTURING THE SAME - A liquid discharge head includes a liquid discharge substrate including a discharge port for discharging liquid, and a flow path member including a transparent member that is transparent to a laser beam, an absorption member capable of absorbing a laser beam, and a flow path for supplying liquid to the liquid discharge substrate, wherein the flow path is formed between the transparent member and the absorption member by emitting a laser beam toward a flow path portion of the absorption member constituting a portion of a wall of the flow path and toward a periphery of the flow path portion through the transparent member and thereby welding the transparent member and the absorption member at the periphery of the flow path portion, and wherein the flow path portion includes an inclined surface inclined with respect to a direction of the laser beam that has passed through the transparent member. | 06-24-2010 |
20110069119 | LIQUID DISCHARGE HEAD AND METHOD OF MANUFACTURING THE SAME - A liquid discharge head includes a liquid discharge substrate including a discharge port; a flow path for supplying liquid to the liquid discharge substrate; an absorption member capable of absorbing a laser beam, wherein a first flow path portion constituting a portion of a wall of the flow path is formed on a surface thereof; and a transparent member transparent to a laser beam, wherein a second flow path portion constituting another portion of the wall of the flow path is formed on a surface thereof; wherein the flow path is formed by welding the surfaces of the absorption and transparent members with each other at a periphery of the first flow path portion using a laser beam, and wherein the second flow path portion is constituted by a depression including an inclined surface capable of reflecting a laser beam directed toward the first flow path portion. | 03-24-2011 |
20110141196 | RECORDING HEAD AND METHOD FOR MANUFACTURING THE SAME - One of an electric wiring substrate and a retaining member includes a section having an absorptance with respect to a laser beam, and the other one of the electric wiring substrate and the retaining member includes a section having a transmittance with respect to the laser beam. The electric wiring substrate and the retaining member are welded to each other by irradiation with a laser beam. At this time, the electric wiring substrate and the retaining member are welded to each other at least at a part of an outer peripheral section of the electric wiring substrate. | 06-16-2011 |
20110310161 | LIQUID DISCHARGE HEAD AND ASSEMBLY METHOD OF LIQUID DISCHARGE HEAD - An assembly method of a liquid discharge head is provided. The liquid discharge head includes an element substrate, an electrode portion, a flexible wiring member which has the element substrate at one end and the electrode portion at another end, and includes a plurality of bent portions, wherein, each edge line of at least two bent portions are not parallel and a housing. The assembly method includes a step for providing the flexible wiring member and the housing in which the element substrate is fixed on a first surface of the housing, a step for fixing the flexible wiring member on a second surface of the housing while holding the electrode portion at a position on a third surface of the housing where the electrode portion to be fixed, and a step for fixing the electrode portion to the position. | 12-22-2011 |
20120113192 | LIQUID EJECTION HEAD AND FLEXIBLE WIRING SUBSTRATE USED IN LIQUID EJECTION HEAD - A flexible wiring substrate that is used in a liquid ejection head having an element substrate provided with energy generating elements for generating energy for ejecting liquid includes: a bending portion; a base member including resin; electrical wiring lines formed on the base member and electrically connected to the element substrate, the electrical wiring lines extending over a ridge of the bending portion; and a metal layer that is arranged on an area of the base member in which no electrical wiring lines are provided and that is not electrically connected to the element substrate, the metal layer extending over the ridge. | 05-10-2012 |
20120120154 | RECORDING APPARATUS - A liquid ejection apparatus has an ejection orifice ejecting a liquid; a liquid storage section storing the liquid; a conductive communication path forming member forming a communication path to supply the liquid from the liquid storage section to the ejection orifice; and an electrode provided inside the liquid storage section and used to detect a remaining amount of the liquid, the communication path is electrically connected to the electrode, and the electrical resistance value between the electrode and the communication path contacting the liquid when the liquid is present in the liquid storage section is smaller than the electrical resistance value between the electrode and the communication path when the liquid is not present in the liquid storage section, and a recording apparatus capable of detecting the presence or absence of ink in the recording head with high precision without increasing the size of the recording head can be provided. | 05-17-2012 |
20130286099 | LIQUID EJECTING HEAD, METHOD OF MANUFACTURING LIQUID EJECTING HEAD, AND LIQUID EJECTION PRINTING APPARATUS - The liquid ejecting head includes a printing element board having a plurality of printing elements for producing energy used to eject liquid, a contact board having a contact terminal for electrically connecting to a liquid ejection printing apparatus, and a functional element, a plurality of lands which are provided on the face of the contact board where the functional element is mounted, and to which terminals of the functional element are connected, a wiring member that connects the printing element board to the contact board, a first terminal and a second terminal disposed on one edge of the contact board, a first wiring connecting the contact terminal to the first terminal, a second wiring connecting at least one of the plurality of lands to the second terminal, and insulating resin that covers the edge face of the second terminal positioned on the one edge of the contact board. | 10-31-2013 |
20140022309 | PRINT HEAD AND INK JET PRINTING APPARATUS - A print head and an ink jet printing apparatus are provided which can have smaller sizes if a print head is used which includes a substrate with a plurality of ejection port arrays and a substrate with ejection port arrays longer than the plurality of ejection port arrays. A drive circuit formed in a substrate is formed outside ejection port arrays in the substrate along the extending direction of the ejection port arrays. The drive circuit formed on an overlapping side of the substrate where the ejection port arrays overlap is formed to be longer, along the extending direction of the ejection port arrays, than a drive circuit formed on a side of the substrate which is opposite to the overlapping side. Furthermore, the ejection port arrays and the ejection port arrays overlap in the extending direction of ink supply ports, and the substrates are mounted on a support. | 01-23-2014 |
20140160205 | METHOD OF MANUFACTURING LIQUID EJECTION HEAD AND LIQUID EJECTION HEAD - A method of manufacturing a liquid ejection head including a liquid ejection substrate, an electric wiring member, and a supporting member having a first supporting surface and a second supporting surface, including: positioning an outer peripheral portion of the electric wiring member disposed on the side of the second supporting surface outside of the second supporting surface; providing the supporting member with the first depression at a position facing one part of the outer peripheral portion of the electric wiring member and the second depression connected to the first depression at a position facing another part of the outer peripheral portion having a width smaller than that of the first depression, and applying an adhesive agent in the first depression to cause part of the adhesive agent to flow into the second depression, so that the outer peripheral portion of the electric wiring member is adhered to the supporting member. | 06-12-2014 |
Patent application number | Description | Published |
20100025139 | VEHICLE BODY STRUCTURE AND COAXIAL TWO-WHEEL VEHICLE - Provided is a vehicle body which constitutes a coaxial two-wheel vehicle including two wheels coaxially arranged. The vehicle body includes: a parallel linkage that includes horizontal links and vertical links and is rotatable in a left-and-right direction of the coaxial two-wheel vehicle; and step plates respectively provided to upper end portions of the vertical links. A load of a passenger riding on the left and right step plates acts on the parallel linkage at a position inside or outside of a line which passes through a ground contact point of one of the wheels respectively mounted to the vertical links and which is in parallel with the vertical links. | 02-04-2010 |
20100038163 | COAXIAL TWO-WHEEL VEHICLE AND METHOD OF CONTROLLING THE SAME - To provide a coaxial two-wheel vehicle that allows a person to easily get off the vehicle with high safety, and a method of controlling the same. A coaxial two-wheel vehicle according to the present invention includes step portions on which feet are placed, and a handle capable of operating back-and-forth movements, and said vehicle moves with a passenger riding thereon. Upon detecting that the passenger gets off the vehicle by using a getting-off switch or the like, a control device of the coaxial two-wheel vehicle performs an assist control for getting-off the vehicle by increasing an inclination angle of each of the step portions with respect to a direction in which the passenger gets off the vehicle. | 02-18-2010 |
20110060513 | MOVING BODY, METHOD OF CONTROLLING THE SAME, AND PROGRAM - A vehicle includes a support member and at least one wheel attached to the support member. The support member is capable of oscillating in a front-back direction of the vehicle. The vehicle further includes a torque control unit applying torque to the wheel, and a control loop controlling the torque control unit to adjust the torque applied to the wheel to allow the vehicle to travel while keeping an inverted state of the support member. The control loop controls the torque control unit to apply normal torque and additional torque to the wheel, the normal torque determined according to a deviation between a target value and a controlled variable including at least one of an inclination angular velocity and an inclination angle of the support member in the front-back direction, the additional torque determined according to a power of a velocity parameter of the vehicle. | 03-10-2011 |
20110130925 | COAXIAL TWO-WHEELED VEHICLE AND ITS CONTROL METHOD - To provide a coaxial two-wheeled vehicle capable of performing a turning movement with stability and its control method. A coaxial two-wheeled vehicle in accordance with the present invention includes drive means to drive two coaxially-arranged wheels, turning reference-input input means to input a turning reference input, and control means to control the drive means according to a turning gain based on a turning reference-input input by the turning reference-input input means to thereby perform a turning movement. The control means preferably brings the turning gain to substantially zero when the coaxial two-wheeled vehicle is in a backward traveling state with a backward speed greater than or equal to a first speed, and sets the turning gain to a value greater than zero when a vehicle speed is substantially zero. | 06-02-2011 |
20110282532 | INVERTED TWO-WHEEL APPARATUS, AND CONTROL METHOD AND CONTROL PROGRAM THEREOF - An inverted two-wheel apparatus includes drive means that drives wheels; control means that generates a torque command value to control drive torque of the drive means; and posture detection means that detects posture information of a vehicle. The inverted two-wheel apparatus is able to travel while keeping an inverted state. Furthermore, the control means performs control to dismount an occupant upon judgment that the torque command value that is generated is equal to or more than a predetermined value, which means in a saturation state, and inverted control is in a failure state based on the posture information detected by the posture detection means. | 11-17-2011 |
20120232757 | COAXIAL TWO-WHEELED VEHICLE AND ITS CONTROL METHOD - To provide a coaxial two-wheeled vehicle capable of performing a turning movement with stability and its control method. A coaxial two-wheeled vehicle in accordance with the present invention includes drive means to drive two coaxially-arranged wheels, turning reference-input input means to input a turning reference input, and control means to control the drive means according to a turning gain based on a turning reference-input input by the turning reference-input input means to thereby perform a turning movement. The control means preferably brings the turning gain to substantially zero when the coaxial two-wheeled vehicle is in a backward traveling state with a backward speed greater than or equal to a first speed, and sets the turning gain to a value greater than zero when a vehicle speed is substantially zero. | 09-13-2012 |
20130187576 | LOAD DRIVING DEVICE AND INVERTED MOVABLE BODY EQUIPPED WITH SAME - Provided is a load driving device capable of efficiently recovering and using regenerative power and an inverted type movable body equipped with same. The load driving device includes a battery that supplies power to a load when driving the load, and is charged with a part of regenerative power when the regenerative power equal to or higher than a first reference value is generated by the load. The load driving device also includes an internal circuit that consumes at least a part of regenerative power when the regenerative power is generated by the load. | 07-25-2013 |
20140330507 | METHOD OF ESTIMATING MOUNTING ANGLE ERROR OF GYROSCOPES BY USING A TURNING DEVICE, AND CORRESPONDING TURNING DEVICE - Bias values of pitch axis and roll axis angular velocity sensors in a stationary state where a reference yaw axis of a two-wheeled inverted pendulum vehicle body is stationary in parallel with a vertical direction are acquired. Bias values of the pitch axis and roll axis angular velocity sensors in a turning state where a two-wheeled inverted pendulum vehicle is turned at a predetermined turning angular velocity in a state where the reference yaw axis of the two-wheeled inverted pendulum vehicle body remains parallel to the vertical direction are acquired. Mounting angle errors of the pitch axis and roll axis angular velocity sensors with respect to the two-wheeled inverted pendulum vehicle body are estimated on the basis of the bias values of the sensors in the stationary state, the bias values of the sensors in the turning state and the predetermined turning angular velocity. | 11-06-2014 |
Patent application number | Description | Published |
20080297552 | INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - An object of the present invention is to provide an ink jet printing apparatus that inhibits the temperature of a print head from increasing excessively while preventing significant density or hue unevenness from occurring in images, without the need for a complicated structure or complicated control. Thus, the present invention detects temperature of the print head, and sets number of scans in which the print head is to stand by until start of scanning and a standby time for each of the set number of scans by the print head, on the basis of the detected temperature. | 12-04-2008 |
20090021548 | INKJET PRINTING APPARATUS AND METHOD FOR PERFORMING MAINTENANCE ON INKJET PRINTING APPARATUS - An inkjet printing apparatus, a maintenance method and an inkjet printing system which are capable of precisely calculating the amount of satellites or ink mist generated and replacing a collecting mechanism at most appropriate time. The inkjet printing apparatus has a wind-powered collecting mechanism collecting generated sub-droplets such as satellites or ink mist, and head temperature sensors for obtaining temperature information of the print head. The CPU calculates the amount of sub-droplets generated on the basis of printing conditions including the detected temperature information of the print head. The CPU determines whether the replacement of the wind-powered collecting mechanism is necessary on the basis of the calculated amount of sub-droplets generated. | 01-22-2009 |
20100156977 | INK JET PRINTING APPARATUS AND PRINTING METHOD - An object of the present invention is to provide a printing apparatus and a printing method even with a variation in the temperature of a print head, thus keeping the quality of images resulting from printing high. Adjustment patterns used to adjust the difference in ink ejection timing between ink ejected in a forward direction and ink ejected in a backward direction during scanning are printed at a plurality of different temperatures. Adjustment values for the ink ejection timing at the respective temperatures are selected from the adjustment patterns. Then, the correction value for the ink ejection timing is calculated from the adjustment values based on the temperature detected by the detection device. Printing is then performed with the difference in ink ejection timing between the ink ejected in the forward direction and the ink ejected in the backward direction during scanning, adjusted based on the correction value. | 06-24-2010 |
20100238222 | INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD - An inkjet printing apparatus and an inkjet printing method are realized which can improve a print quality while minimizing the volume of waste ink, running cost and throughput degradations. For this purpose, the scan width is set according to the size and position of the print medium and then, based on that scan width, a location where the preliminary ejections are to be executed and the number of times that the preliminary ejection is to be executed in a single preliminary ejection session are determined. | 09-23-2010 |
20100302301 | PRINTING APPARATUS AND PRINTING METHOD - There is an object of providing a printing apparatus which can restrict a variation in ejection characteristic of an ink droplet due to a temperature change of a printing head to restrict degradation in an image. The printing apparatus adjusts temperatures of the print head to first and second temperature so as to measure ejection characteristics of the print head at the first and second temperature. Then, a driving condition is generated based on the measured ejection characteristics and a printing is performed based on the measured ejection characteristics. | 12-02-2010 |
20110057973 | INK JET PRINTING APPARATUS AND INK JET PRINTING METHOD - The present invention provides an ink jet printing apparatus and an ink jet printing method in which even with a variation in ink ejection amount depending on an image print area, the ink ejection amount for preliminary ejection can be optimally set. For this purpose, a print area is divided into a plurality of areas, and the number of ink ejections through a nozzle is measured for each of the areas. Based on the number of ink ejections for each area, the number of ink ejections for the preliminary ejection is determined. | 03-10-2011 |
20110181645 | RECORDING APPARATUS - A recording apparatus includes a first acquisition unit configured to acquire a speed of ink discharged from a recording head, a second acquisition unit configured to acquire information relating to a speed change based on the speed acquired by the first acquisition unit and a reference speed; a setting unit configured to set driving information relating to the recording head based on the information relating to the speed change acquired by the second acquisition unit, and a drive unit configured to drive the recording head based on the driving information set by the setting unit. | 07-28-2011 |
20130027455 | PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus includes a print unit, an acquisition unit, and a setting unit. The print unit performs printing on a sheet by repeating reciprocating scans of a print head. The acquisition unit acquires information on a temperature of the print head. The setting unit sets a wait time to start a next scan after one scan. The setting unit increases the wait time by a predetermined additional time for each subsequent scan once a value acquired by the acquisition unit exceeds a first threshold, unless the value falls below a second threshold. | 01-31-2013 |
20130027456 | PRINTING APPARATUS - A printing apparatus, which includes a heating unit for heating a recording medium during printing, determines a pass number for multi-pass printing based on acquired information relating to the duty in each of a plurality of regions in one band of print region. The printing apparatus sets an amount of heat of the heating unit based on the acquired information. | 01-31-2013 |
20130050337 | INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD - An inkjet printing apparatus and an inkjet printing method are realized which can improve a print quality while minimizing the volume of waste ink, running cost and throughput degradations. For this purpose, the scan width is set according to the size and position of the print medium and then, based on that scan width, a location where the preliminary ejections are to be executed and the number of times that the preliminary ejection is to be executed in a single preliminary ejection session are determined. | 02-28-2013 |
20130147868 | INK JET RECORDING APPARATUS - The present invention relates to an ink jet recording apparatus including a recording head including a plurality of energy generation elements configured to generate thermal energy. The ink jet recording apparatus includes a specification unit and a control unit. The specification unit specifies a pulse width upper limit value of a prepulse during a recording operation based on a minimum pulse width by which ink is discharged by applying a drive pulse to the energy generation elements and a temperature of the recording head during the recording operation. The control unit controls the energy generation elements to be driven using a drive pulse of a prepulse with a pulse width equal to or less than the pulse width upper limit value. | 06-13-2013 |
20130235104 | INKJET PRINTING APPARATUS AND DRIVING METHOD - Provided are an inkjet printing apparatus, whereby pulse drive periods and a pause period can be adjusted so as to fall within predetermined periods, while the volume of ink to be ejected is ensured, and a heat generating element driving method therefor. For the inkjet printing apparatus, a pulse signal drive period for a pulse driven previously, a pulse signal drive period for a pulse driven subsequently and a pause period are set to perform ejection of ink droplets one time. When the ejection period exceeds the threshold value, the pulse signal drive period for the pulse driven subsequently and the pause period are reduced to adjust the ejection period to be equal to or lower than a threshold value. | 09-12-2013 |
20130257933 | INKJET RECORDING APPARATUS - An inkjet recording apparatus predicts the volume of air bubbles generated in a storage section of a recording head based on an input recording job. When the volume of the amount of ink in the storage section of the recording head is less than the predicted volume of air bubbles, a recovery operation is performed. | 10-03-2013 |
20150022574 | PRINTING APPARATUS AND PRINTING METHOD - An inkjet printing apparatus which performs printing by performing scanning using a print head has a problem in that quality of an image of a ruled line is degraded when ink is not ejected for a certain period of time. To address this problem, control is performed such that power for driving the print head for unit regions including pixels having a ruled-line attribute becomes higher than power for driving the print head for unit regions which do not include the pixels having the ruled-line attribute. By this, a high-quality ruled-line image may be printed. | 01-22-2015 |