Patent application number | Description | Published |
20080258050 | ENCODER - A light via first and second index scales is split by a beam splitter, and one of the split lights is received by a first light-receiving element via a movable scale and also the other of the split lights is received by a second light-receiving element via a reference scale, and therefore by computing positional information of the movable scale using an output of the first light-receiving element (a first output) and an output of the second light-receiving element (a second output), movement information of the movable scale can be measured with high precision without being affected by drift of the modulation center (the oscillation center) of the beam. | 10-23-2008 |
20090135388 | MOVABLE-BODY APPARATUS, EXPOSURE APPARATUS, EXPOSURE METHOD, AND DEVICE MANUFACTURING METHOD - A moving grating is arranged on a side of a wafer stage, a light source irradiates a light to the moving grating, diffracted lights generated from the moving grating are interfered by fixed scales and an index scale of which positional relation with the light source is fixed, and a detection instrument detects the interfered light. In this case, since the moving grating is arranged on a side of the wafer stage, upsizing of the entire wafer stage can be suppressed. Further, since interference occurs between a plurality of diffracted lights (e.g., the ±1st-order diffracted light) passing extremely close optical paths, influence caused by a fluctuation of ambient atmosphere becomes less in comparison to conventional interferometers, and thus, a high-precision measurement of positional information of the movable body is possible. | 05-28-2009 |
20090267781 | ENCODER - The present invention performs calculations on photoelectric conversion signals (I | 10-29-2009 |
20100176282 | ENCODER - A reflection mirror that causes an illumination light to be incident on a movable scale is oscillated in an X-axis direction based on a modulation signal. Accordingly, the optical path of the illumination light, of the illumination light and another illumination light generated at an index scale, periodically changes, and as a consequence, the illumination light is periodically modulated. Accordingly, an extra scanner that scans the illumination light or another illumination light with respect to the movable scale does not have to be arranged, which allows an apparatus to be reduced in size and cost. | 07-15-2010 |
20110192964 | ENCODER - An encoder emits modulated light from a light source section and lets a first light and a second light separated from the modulated light interfere with each other in a moving grating. In the encoder, the light emitted from the light source section is electrically modulated, and the first light and the second light have different light path lengths. | 08-11-2011 |
20110272565 | ENCODER - An encoder includes: a light modulation section which modulates at least a portion of light that is emitted from a light source; a moving member which has an incidence plane, on which a plurality of light beams of the light incident, and is relatively movable in at least one direction; and at least two light receiving sections which respectively receive interference fringes that are generated in at least two regions on the moving member, wherein the light enters into the moving member such that at least two interference fringes move in opposite directions on the moving member in accordance with a modulation by the light modulation section. | 11-10-2011 |
20120292539 | ENCODER - An encoder detects positional information of a moving body using interference of a modulated illumination light. A scale has a pattern arrayed in movement directions of the moving body. An optical member generates an emergent light by the interference of the modulated illumination light. A light receiving device receives the emergent light and outputs a first photoelectric conversion signal and a second photoelectric conversion signal which have a phase difference. A control circuit generates a first signal by subtracting at least the first photoelectric conversion signal from the second photoelectric conversion signal, and outputs the positional information of the moving body based on the first signal. At least one of the scale, the optical member and the light receiving device is fixed to the moving body, and the scale is moved relative to the optical member and the light receiving device. | 11-22-2012 |
Patent application number | Description | Published |
20100000939 | PROCESS FOR PRODUCTION OF HOLLOW-FIBER MEMBRANE BUNDLES - The present invention relates to a method of producing a hollow fiber membrane bundle having an end fixed with a casting material wherein the ends of hollow fiber membranes are fixed with the casting material in a condition that an insert is placed inside a hollow fiber membrane bundle at a position inner than a region where a fixing portion is formed, and then the insert is removed from the inside of the hollow fiber membrane bundle; and relates to a method of producing a hollow fiber membrane filter element through this method. The hollow fiber membrane bundle produced by the method of the present invention can be used in various types of filtration treatment such as external pressure filtration. | 01-07-2010 |
20100044908 | PROCESS FOR PRODUCING MIXTURE OF TWO-LIQUID MIXING TYPE CURABLE RESIN AND PROCESS FOR PRODUCING HOLLOW-FIBER MEMBRANE FILTER ELEMENT - An object of the present invention is to provide a process for producing a mixture of a two-liquid mixing type curable resin, which process is hard to generate curing unevenness, can be carried out with low energy consumption, and is suited for mixing even with a disposable static mixer. | 02-25-2010 |
20140088833 | CONTROL DEVICE FOR FOUR-WHEEL DRIVE VEHICLE - When there is a curve in a forward driving path of a vehicle, a wheel clutch for a turning outer wheel of a rear shaft is engaged and a wheel clutch for a turning inner wheel of the rear shaft is disengaged during driving of the curve. When there is no curve, both of the right and left wheel clutches are engaged when it is estimated the vehicle receive a predetermined disturbance input during forward driving. Then, a target yaw moment of a vehicle is calculated. If an average speed of the right and left wheels of a front shaft is more than the speed of the turning outer wheel, the wheel clutch for the turning outer wheel is engaged when the target yaw moment is applied to the vehicle, so that the engaging force of a transfer clutch is controlled based on the target yaw moment. | 03-27-2014 |
Patent application number | Description | Published |
20090311012 | DEVELOPING DEVICE AND IMAGE-FORMING APPARATUS - This invention relates to a developing device | 12-17-2009 |
20110150537 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS PROVIDED THEREWITH - Provided is a developing device including: a developing container including a developer replenishing port from which the developer is replenished, and a developer discharge port which is provided on a downstream side of one of the conveyance paths and from which surplus developer is discharged; and a discharge regulating portion provided to one of the plurality of stirring members which is arranged in the one of the conveyance paths, in which the discharge regulating portion includes a regulating member arranged so as to face the developer discharge port, for regulating movement of the developer to the developer discharge port side, and a decelerating conveyance member arranged between the helical blade and the regulating member, for partially reducing a conveying speed of the developer in the one of the conveyance paths. | 06-23-2011 |
20120177412 | Developing Apparatus and Image Forming Apparatus Including the Same - A developing apparatus according to the present disclosure is partitioned into a plurality of convey chambers which include a first convey chamber and a second convey chamber which are disposed substantially in parallel with each other, the second convey chamber has a U shape in section, a sensor disposition portion, where a toner concentration sensor is disposed on a bottom surface, is formed in an upstream with respect to a restriction portion in a developer convey direction, across a predetermined width in the developer convey direction including a detection surface of the toner concentration sensor, a distance between curved surface portions on both sides of a U-shaped inner wall surface and the second stir member is wider than another portion of the second stir chamber. | 07-12-2012 |
20120201573 | STIR-TRANSPORT MEMBER, DEVELOPMENT DEVICE PROVIDED THEREWITH, AND IMAGE FORMING APPARATUS - A stir-transport member is formed on a circumferential surface of a rotation shaft with a first spiral blade, and a second spiral blade formed to overlap the region of the first spiral blade and is opposite the first spiral blade in phase and having a smaller radial-direction height than the first spiral blade. Sections of the spiral blades along the cross longitudinal direction thereof have trapezoidal shapes. The first spiral blade have a plurality of first swell portions, a part of each corresponding to a bottom of the trapezoidal shape and is more swollen than the other portions. The second spiral blade have a plurality of second swell portions, a part of each corresponding to the bottom of the trapezoidal shape and is more swollen than the other portions. The first spiral blade cross the second spiral blade at least at one of the first swell portions per turn. | 08-09-2012 |
20130156454 | DEVELOPING DEVICE, IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING DEVELOPING DEVICE - A developing device includes a development roller, a magnetic roller, a transformer, a switching portion, output control portion and a capacitor. The development roller is opposite a photoconductor drum. The magnetic roller performs, with a magnetic brush, the supply of a toner to the development roller and the removal of the toner. The transformer generates an alternating-current voltage applied to the development roller. The switching portion passes and interrupts a current to the transformer. The output control portion stepwise changes, when a duty ratio in switching is changed, the duty ratio a plurality of times from a first duty ratio to a second duty ratio. The capacitor has one end connected to the transformer and the other end connected to the switching portion. | 06-20-2013 |
20130216251 | IMAGE FORMING APPARATUS - An image forming apparatus has a first voltage application section for applying a first bias to a magnetic roller, a second voltage application section for applying a second bias to a developing roller, and a controller for controlling the voltages of the first and second voltage application sections and the driving/rotating of the magnetic roller and the developing roller. When no image formation is taking place, the controller can execute a toner collection mode in which, with the first and second biases set at the same potential and the second bias set lower than the voltage applied to an image carrying member, the magnetic roller is rotated in the direction reverse to that in which it is rotated during image formation. | 08-22-2013 |
20140376973 | IMAGE FORMING APPARATUS - An image forming apparatus can perform a toner collection mode that includes a first positive rotation step in which at the time of no image formation, in a state where the second bias applied to a toner carrying member is set at a higher voltage on the same polarity side as a toner than a first bias, a developer carrying member and the toner carrying member are rotated in the same direction as a direction at the time of image formation and a reverse rotation step in which after the first positive rotation step is performed, in a state where the first bias is set at a higher voltage on the same polarity side as the toner than the second bias, the developer carrying member and the toner carrying member are rotated in a reverse direction to the direction at the time of image formation. | 12-25-2014 |
Patent application number | Description | Published |
20080206661 | Image forming apparatus and image forming method - An image forming apparatus having a touchdown-development type developing apparatus, in which a toner collecting roller that collects scattered toner suspended in the vicinity of a toner holding body and a two-component developer holding body is arranged on the downstream side in a rotational direction of the two-component developer holding body from a closest position of the two-component developer holding body and the toner holding body, and between the two-component developer holding body and the housing wall, and further, bias means that applies a bias voltage for collecting the scattered toner to the toner collecting roller, and image density sensing means for sensing a density of a toner image developed on the electrostatic latent image holding body surface or a toner image on a transfer body onto which the toner image developed on the electrostatic latent image holding body surface is transferred to control the bias voltage are provided. | 08-28-2008 |
20080226320 | DEVELOPING UNIT AND IMAGE FORMING APPARATUS - A developing unit has a voltage-applicator ( | 09-18-2008 |
20080232859 | IMAGE FORMING APPARATUS - An image forming apparatus has a photoconductive member on which a latent image is to be formed, a developing roller for developing the latent image on the photoconductive member by a first bias. A magnetic roller forms a magnetic brush thereon with a two-component developer and forms a thin toner layer on the developing roller by a second bias. The developing roller is aluminum with a surface treated for high resistance. The thickness (T) of the toner layer and the duty ratio (D | 09-25-2008 |
20080232862 | IMAGE FORMING APPARATUS - An image forming apparatus has a photoconductive member, and a developing roller develops a latent image on the photoconductive member by a first alternating-current bias in the form of a rectangular wave. The following relationships are satisfied in calculating the duty ratio (D | 09-25-2008 |
20080298847 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device uses a two-component developer including at least carriers and toners. The toners are supplied to an image bearing member bearing an electrostatic latent image so that a toner image is developed from the electrostatic latent image. The developing device has a developing roller arranged to oppose the image bearing member; and a magnetic roller arranged to oppose the developing roller. The magnetic roller retains the two-component developer to supply toners to the developing roller. The developing roller and the magnetic roller are rotationally driven in directions to be opposite from one another at an opposed position, and a magnetic pole of the magnetic roller and a magnetic pole of the developing roller have magnetic polarities different from one another at the opposed position. A surface roughness of the magnetic roller is greater than a surface roughness of the developing roller. | 12-04-2008 |
20090154962 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device visualizing an electrostatic latent image previously formed on the surface of an image carrier as toner image, comprising: a developing roller placed at a position facing the image carrier, carrying a toner on the surface thereof, conveying the toner and flying the conveyed toner onto the surface of the image carrier; and a resin layer coated on the surface of the developing roller, wherein the absolute value of the difference in charge between the toners in the upper and lower layers of the toner layer formed on the developing roller as the toner carried on the developing roller is 6 μC/g or less. | 06-18-2009 |
Patent application number | Description | Published |
20080285081 | Data Processing Apparatus and Method, Program, and Storage Medium - Disclosed herein is a data processing apparatus that sets identification information for identifying each of a plurality of contents based on metadata added to each of the contents. The apparatus includes: title information acquisition means for acquiring title information of each of the contents, the title information concerning a title of the content and being included in the metadata; information extraction means for comparing the title information of each of the contents to extract a part of the title information that is common to all of the contents; and identification information setting means for setting the identification information of each of the contents based on the other part of the title information than the part of the title information that is common to all of the contents. | 11-20-2008 |
20120022854 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM - An apparatus and method provide logic for processing information. In one implementation, an apparatus includes a receiving unit configured to receive a selection of displayed content from a user. An obtaining unit is configured to obtain data corresponding to the selection. The data includes text data. An identification unit is configured to identify a keyword within the text data, and a storage unit is configured to generate a command to transmit the keyword to a device. | 01-26-2012 |
20120023398 | IMAGE PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM - An apparatus and method provide logic for processing information. In one implementation, an apparatus includes a receiving unit configured to receive a selection of displayed content from a user. An obtaining unit is configured to obtain data corresponding to the selection. The data includes text data. An identification unit is configured to identify a keyword within the text data, and a storage unit is configured to store the keyword in a keyword database. | 01-26-2012 |
20120023399 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM - An information processing apparatus includes a selection unit selecting at least a part of a text included in contents, an acquisition unit acquiring a processing result of natural language processing for the part of the text selected by the selection unit, a specifying unit specifying a predetermined part of the text based on the processing result acquired by the acquisition unit, a detection unit detecting a keyword from the predetermined part of the text based on the processing result acquired by the acquisition unit, a tag generation unit automatically generating a tag in accordance with the keyword detected by the detection unit, and an association unit associating the tag generated by the tag generation unit with the predetermined part of the text. | 01-26-2012 |
20120023447 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM - An apparatus and method provide logic for processing information. In one implementation, an apparatus includes a receiving unit configured to receive a selection of displayed content from a user. An obtaining unit is configured to obtain data corresponding to the selection. The data includes text data. An identification unit is configured to identify a keyword within the text data, and a control unit configured to generate a signal to highlight the keyword within the displayed content. | 01-26-2012 |