Patent application number | Description | Published |
20110072928 | Mechanism for Converting Rotary Motion into Linear Motion - Upon assembly of a mechanism for converting rotary motion into linear motion, since a plurality of rollers are different from one another in the tilt direction with respect to a holder, a difficulty occurs in fixing one end sides thereof to the holder and thereafter making fixation for the other end sides. | 03-31-2011 |
20110193500 | MECHANISM FOR CONVERTING ROTARY MOTION INTO LINEAR MOTION AND LIFTING DEVICE - There is provided a mechanism for converting rotary motion into linear motion in which high positioning accuracy can be obtained in mutual conversion between rotary motion and linear motion. The mechanism includes a plurality of rollers having a roller annular groove member and a pair of thrust bearings, a thrust bearing portion that is convex shaped and is held between the pair of thrust bearings on an outer surface of an end of the roller shaft, a step surface that is disposed on an inner surface of the roller annular groove member and facing to the thrust bearing portion putting one of the pair of thrust bearing in between, a thrust facing member that is in mesh with an inner surface of the roller annular groove member and is facing to the thrust bearing portion putting the other one of the pair of thrust bearing in between. | 08-11-2011 |
20110255706 | Sound Generator - A sound generator is provided capable of generating vehicle sound that will be produced when a specific sound element is changed out of a plurality of sound elements arising from the operation of a plurality of components mounted on a vehicle. A sound generator | 10-20-2011 |
20120141315 | External Gear Pump - An external gear pump capable of achieving both a sealing property and a sliding property is disclosed. The external gear pump includes a pair of rotating shafts that are respectively pivotally supported by bearings provided in a casing; at least a pair of gears that are respectively fixed to the pair of rotating shafts and are externally meshed with each other; a side plate that is provided in sliding contact with one side surfaces of the pair of gears; and a seal block integrally including a side surface sliding part and a tooth tip sliding part. The external gear pump further includes movement restrictors on both sides of a straight line connecting axes of the pair of gears, and the movement restrictors restrict the seal block from moving with respect to the casing on a plane orthogonal to the rotating shafts. | 06-07-2012 |
20140095037 | ENGAGEMENT POSITION STORAGE DEVICE AND BRAKE SYSTEM INCLUDING THE SAME - Provided is an engagement position storage device capable of detecting a clutch engagement position of a vehicle finely and a brake system including such a device. In an engagement position storage device | 04-03-2014 |
Patent application number | Description | Published |
20080218556 | LIQUID DROPLET EJECTION HEAD, LIQUID DROPLET EJECTION DEVICE, AND IMAGE FORMING APPARATUS - A liquid droplet ejection had having: a vibrating pate at which is formed a piezoelectric element which deforms when voltage is applied; a wiring board disposed above the piezoelectric element, an electric wire for deforming the piezoelectric element being disposed at the wiring board; a liquid storage chamber provided at a side opposite to the piezoelectric element, with the wiring board sandwiched therebetween; a pressure chamber provided at a side opposite to the wiring board, with the vibrating plate sandwiched therebetween; an ejection opening that ejects liquid droplets from the pressure chamber; a liquid supply opening that supplies liquid within the liquid storage chamber to the pressure chamber; and an electrical connection portion that passes through the wiring board and electrically connects the piezoelectric element and the electric wire through the liquid supply opening, is provided. | 09-11-2008 |
20080284825 | LIQUID DROPLET EJECTING HEAD AND IMAGE FORMING DEVICE - A liquid droplet ejecting head, comprising: a plurality of pressure chambers; nozzles communicating respectively with the plurality of pressure chambers; a vibrating plate that forms portions of the plurality of pressure chambers; a piezoelectric body disposed above the vibrating plate; individual electrodes formed respectively for each of the plurality of pressure chambers at one of a bottom surface and a top surface of the piezoelectric body, the individual electrodes being one polarity of the piezoelectric body; a common electrode, formed at the other surface of the one of a bottom surface and a top surface of the piezoelectric body, so as to extend over the plurality of pressure chambers, the common electrode being the other polarity of the piezoelectric body; electrical connecting portions electrically connected to the individual electrodes; and first electrode members electrically isolated from the common electrode, is provided. | 11-20-2008 |
20090066738 | LIQUID DROPLET EJECTING APPARATUS - A liquid droplet ejecting apparatus includes: a piezoelectric body that deforms and ejects liquid droplets as a result of a voltage being applied thereto and, when a superposed voltage, obtained by superposing a constant voltage of a constant voltage level and a waveform voltage of a sinusoidal waveform is applied thereto, an electrostatic capacitance and a deformation amount changes in response to the voltage level of the constant voltage; and a voltage applying unit that uses, as a reference voltage level, a voltage level of the constant voltage when the square of the deformation amount divided by the electrostatic capacitance is at a maximum value, and which applies to the piezoelectric body, when the piezoelectric body is to eject the liquid droplets, a drive voltage in which a drive waveform is superposed on the constant voltage that is within a predetermined range that includes the reference voltage level | 03-12-2009 |
20090262156 | LIQUID DROPLET EJECTING HEAD AND IMAGE FORMING APPARATUS - A liquid droplet ejecting head includes: an ejector having a nozzle, a pressure chamber, and a drive element that applies pressure to a liquid inside the pressure chamber; and a controller that applies a drive waveform to the drive element. The controller vibrates a flow velocity of the liquid ejected from the nozzle in a first positive direction vibration mode for causing a leading end portion of the liquid droplet to be ejected from the nozzle toward the opposite side of the pressure chamber side; and a second positive direction vibration mode for adjusting the velocity of a trailing end portion of the liquid droplet. An interval between the first positive direction vibration mode and the second positive direction vibration mode is set so as to make the velocity of the trailing end portion of the columnar liquid droplet faster than the velocity of the leading end portion thereof. | 10-22-2009 |
20110043558 | DROPLET EJECTION DEVICE - There is provided a droplet ejection device including: a droplet ejection unit that successively ejects plural droplets within a pre-specified driving cycle and is capable of causing the plural droplets to aggregate and impact; and a control section that controls application to the droplet ejection unit of driving waveforms among plural driving waveforms that are each capable of ejecting a droplet from the droplet ejection unit, which are generated within the pre-specified driving cycle, such that the driving waveforms that are applied include at least one driving waveform generated at a pre-specified later period in the driving cycle. | 02-24-2011 |
20110134174 | DRIVING DEVICE FOR LIQUID DROPLET JETTING DEVICE, LIQUID DROPLET JETTING DEVICE, IMAGE FORMING APPARATUS, AND COMPUTER READABLE MEDIUM - A driving device for a liquid jetting apparatus includes an application unit and a controller. The application unit generates and applies a first voltage of a first waveform to a first pressure generating unit and generates and applies a second voltage of a second waveform to the second pressure generating unit to jet a liquid droplet outside a nozzle after pulling liquid inside the nozzle. The second waveform includes at least one of a third waveform corresponding to a jetting angle for changing a jetting direction from a reference direction by deforming a liquid level of liquid pulled inside the nozzle in a direction of pushing the liquid level outside the nozzle, or a fourth waveform corresponding to a jetting angle for changing the jetting direction from the reference direction by deforming the liquid level of liquid pulled inside the nozzle in a direction of further pulling the liquid level. | 06-09-2011 |
20140232772 | IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - An image forming apparatus includes: a plurality of nozzles that eject liquid droplets; an image forming unit that determines at least some of the plurality of nozzles as nozzles that do not eject liquid droplets, and to form a plurality of images by performing image formation for each of the determined nozzles based on image information predetermined using the remaining nozzles other than the determined nozzles; and an acquisition unit that acquires information representing a defective nozzle which is unusual in ejection of liquid droplets among the plurality of nozzles based on the plurality of images formed by the image forming unit. | 08-21-2014 |
20140232773 | IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - An image forming apparatus includes: a plurality of nozzles that include a normal nozzle which is normal in ejection of liquid droplets and an abnormal nozzle which is abnormal in ejection of liquid droplets; a storage unit in which nozzle information capable of determining a non-ejection nozzle which does not eject liquid droplets at the time of image forming is stored to correspond to each of a plurality of different conditions; and a control unit that performs a control based on the nozzle information corresponding to at least one of the conditions related to the image forming such that liquid droplets are not ejected from the non-ejection nozzle, and performs a control based on the image information such that liquid droplets are ejected from the nozzles except the non-ejection nozzle among the plurality of nozzles. | 08-21-2014 |