Patent application number | Description | Published |
20080212998 | TANDEM IMAGE FORMING DEVICE AND IMAGE FORMINGAPPARATUS INCLUDING THE SAME - A method of arranging a plurality of image forming sections, each of which includes a developing device and a cleaning device. The method includes arranging the plurality of image forming sections side by side along an inclined image carrier; and positioning the cleaning device above the developing device of other image forming sections in one of nearby ones of the plurality of image forming sections. | 09-04-2008 |
20080219702 | IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING METHOD - A disclosed image forming apparatus includes an image carrier; one or more charging units configured to charge the image carrier in preparation for formation of each of plural latent images corresponding to toner images of different colors; a latent image forming unit configured to expose non-image areas on the charged image carrier to form each of the latent images; and developing units configured to develop the corresponding latent images in sequence with toners of the corresponding colors to form the toner images and thereby to form a color toner image composed of the toner images of the different colors on the image carrier, the toners having polarity opposite to that of the charged image carrier. | 09-11-2008 |
20080261768 | Driving device or image forming apparatus - A rotary-body driving-force transmitting mechanism transmits a driving force from a driving-force source to a rotary body. A rotary-inertial-body driving-force transmitting mechanism transmits the driving force to a rotary inertial body that suppresses a velocity fluctuation in the rotary body. A rotational velocity shift mechanism shifts the rotational velocity. The rotary inertial body, the rotary-body driving-force transmitting mechanism, and the rotary-inertial-body driving-force transmitting mechanism are provided coaxially with a rotary shaft of the rotary body. A satellite frictional gear mechanism is used as the rotational velocity shift mechanism. | 10-23-2008 |
20090052912 | ABNORMALITY DETERMINING APPARATUS, IMAGE FORMING APPARATUS, COPYING MACHINE, AND INFORMATION OBTAINING METHOD - A time point at which a predetermined period elapses since the start of use of a copying machine as a detection subject after factory shipment or repair is obtained. Pieces of set information, which are combinations of various types of information until the time point is reached are sequentially stored to construct a normal set information group. After the time point is reached, presence of abnormality in the copying machine is determined based on the normal set information group and the various types of information obtained. | 02-26-2009 |
20090074431 | IMAGE FORMING APPARATUS - An image forming apparatus includes a toner-layer filling-rate lowering unit that causes a toner layer of toner images to be formed on an image carrier so that the toner layer has sufficient optical transparency for exposing and the toner-layer filling rate is set relatively low; and a toner rolling rate adjusting unit that rolls the toner images at a predetermined toner rolling rate in accordance with the toner-layer filling rate when the toner images are transferred to the transferring/fixing unit. | 03-19-2009 |
20090322020 | Decelerator, drive device including same, and image forming apparatus incorporating the drive device - A decelerator for reducing a speed of rotation of a drive source and transmitting drive of the drive source to an image bearing member of an image forming apparatus includes a drive shaft, a drive transmission member, and a pressure regulator. The drive shaft is rotated by the drive source. The drive transmission member is rotated by the drive shaft and includes a peripheral surface that contacts the drive shaft. The pressure regulator presses the drive shaft against a center of rotation of the drive transmission member and includes an alignment regulator to regulate alignment of the drive shaft in a direction of rotation of the drive transmission member. A drive device for rotating an image bearing member includes a drive source including a drive shaft, and the decelerator. An image forming apparatus includes the drive device and an image bearing member rotated by the drive device. | 12-31-2009 |
20110230305 | Driving device and image forming apparatus - A driving device includes a planetary gear deceleration mechanism in a transmission path that transmits driving force from a driving motor to a driven member, in which the deceleration mechanism includes first and second support units into which a housing that constitutes a mechanism main body is divided, the first support unit includes carriers of at least one stage and pinion gears supported thereby, and is provided with an output unit in the carrier of the final stage, the second support unit includes an output shaft that is detachable from the output unit and a supporting unit for the output shaft, and the output shaft is supported in an insertable and removable manner with respect to the output unit of the carriers in the first and the second support units that are joined to each other. | 09-22-2011 |
20110293328 | Rotary drive device and image forming apparatus including same - A rotary drive device to drive a rotary body included in an image forming apparatus. The rotary drive device includes a drive source and a planetary gear mechanism to control torque from the drive source. The planetary gear mechanism includes a sun gear rotated by the torque, an annular gear coaxial to the sun gear and having inward-facing teeth, multiple planetary gears provided within the annular gear, and a carrier rotatable coaxially to the sun gear and the annular gear to rotatably support the multiple planetary gears. The annular gear is formed by injecting molten resin into a mold having a cylindrical cavity with teeth shapes along an inner circumference of the cavity from multiple pin gates provided to the mold at equal intervals along a circumference of the cavity. A number of pin gates is a non-integer multiple of a number of planetary gears. | 12-01-2011 |
20120046142 | REDUCTION GEAR UNIT AND IMAGE FORMING APPARATUS INCORPORATING SAME - A reduction gear unit incorporatable in an image forming apparatus includes planetary gear mechanisms each including a sun gear, an outer gear, planetary gears arranged between the outer gear and the sun gear at equal intervals and meshing with the sun gear and the outer gear, and a carrier rotatable coaxially with the sun gear and the outer gear to rotatably support the planetary gears. An extreme upstream mechanism in the drive transmission direction includes an input element connected to a drive source. An extreme downstream mechanism includes an output element connected to a member outputting the drive force to a rotary member. Any mechanism other than the extreme downstream mechanism includes an output element connected to an input element of an adjacent mechanism located downstream of any other mechanism. The sun gear of the extreme downstream mechanism has a larger pitch diameter than any other mechanisms. | 02-23-2012 |
20120196720 | PLANETARY GEAR UNIT AND IMAGE FORMING APPARATUS INCLUDING SAME - A planetary gear unit including a sun gear rotatable by torque from a drive source, an outer gear disposed coaxially with the sun gear, multiple planetary gears disposed within the outer gear at equal intervals along an inner circumference of the outer gear to engage the sun gear and the outer gear, a carrier pin to rotatably support each of the multiple planetary gears, and a carrier rotatable coaxially with the sun gear and the outer gear to support both ends of the carrier pin. At least a first end of the carrier pin is constructed of a circular portion and a linear portion to form a first supported part. The carrier includes a first support part that supports the first supported part and is formed to position the circular portion of the first supported part downstream from the linear portion in a direction of rotation of the carrier. | 08-02-2012 |
20130017924 | DRIVE DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAMEAANM Shimizu; KeisukeAACI TokyoAACO JPAAGP Shimizu; Keisuke Tokyo JPAANM Maehata; YasuhiroAACI TokyoAACO JPAAGP Maehata; Yasuhiro Tokyo JPAANM Miyawaki; KatsuakiAACI KanagawaAACO JPAAGP Miyawaki; Katsuaki Kanagawa JPAANM Watanabe; TetsuoAACI KanagawaAACO JPAAGP Watanabe; Tetsuo Kanagawa JPAANM Matsuda; HiromichiAACI KanagawaAACO JPAAGP Matsuda; Hiromichi Kanagawa JP - A drive device including a planetary gear reduction device having at least two stages and an output shaft, and a driven shaft to support a driven member rotatively driven by torque reduced by the planetary gear reduction device and transmit the torque from the output shaft to the driven member. Each stage of the planetary gear reduction device includes a sun gear, an outer gear, multiple planetary gears, a carrier, and a support shaft. The output shaft is provided to the carrier of the last stage. Central axes of the sun gear, the outer gear, the carrier, the output shaft, the driven shaft, and the driven member are all arranged coaxially with one another and at least one carrier is floatingly supported relative to the outer gear. The carrier is formed as a single integrated unit having holes into which both ends of the support shaft are fitted. | 01-17-2013 |
20130065725 | DRIVE TRANSMISSION UNIT AND IMAGE FORMING APPARATUS INCLUDING SAME - A drive transmission unit includes a planetary gear mechanism. The planetary gear mechanism includes an outer gear rotatably disposed on a shaft, a sun gear rotated by a power source, coaxially disposed on the same shaft as the outer gear, multiple planetary gears to engage the sun gear and the outer gear, disposed along an inner circumferential surface of the outer gear, a carrier rotatable on the same shaft as the outer gear to rotatably support the planetary gears, a contact member that contacts the sun gear as the sun gear moves in a direction of thrust due to engagement with the plurality of planetary gears, and a grease retaining portion to retain grease near a contact portion at which the sun gear contacts the contact member as the sun gear moves in the direction of thrust. The outer gear, the sun gear, and the planetary gears are helical gears. | 03-14-2013 |
20130109529 | ROTARY BODY DRIVER WITH PLANETARY GEAR TRANSMISSION AND IMAGE FORMING APPARATUS INCORPORATING SAME | 05-02-2013 |
20130260952 | PLANETARY GEAR ASSEMBLY, DRIVE UNIT INCLUDING THE PLANETARY GEAR ASSEMBLY, AND IMAGE FORMING APPARATUS INCLUDING THE DRIVE UNIT, AND INSTALLATION METHOD FOR PLANETARY GEAR ASSEMBLY - A planetary gear mechanism includes a plurality of planetary gears, an outer gear, a sun gear, a carrier, and a stick mount. The outer gear meshes with the plurality of planetary gears. The sun gear is coaxially disposed on the same axis as the outer gear and transmits force to the planetary gears. The carrier rotatably supports the plurality of planetary gears and is rotatably and floatingly supported. The carrier includes a hole through which a stick member penetrates in a direction of axis of rotation of the carrier. The stick member penetrates through the hole and is mounted on the stick mount. The stick mount is disposed opposite the carrier. The outer gear and the sun gear are held such that one of the outer gear and the sun gear does not rotate. | 10-03-2013 |
20140056618 | ROTATING-BODY DRIVING DEVICE AND IMAGE FORMING APPARATUS - A rotating-body driving device comprising: a rotating body; a driving source; a reduction gear that includes an output shaft and a gear rotating at a non-integer ratio of rotation period to a rotation period of the output shaft, and the reduction gear reducing rotation speed of the driving source; a pulse-signal generating unit; a pulse-count storage unit; a speed-fluctuation storage unit that stores therein a rotation speed fluctuation of the output shaft; and a driving-source control unit, wherein the driving-source control unit detects the speed fluctuation information associated with the accumulated number of pulse signals from the speed-fluctuation storage unit, and performs for the driving source a feedforward control to set off the rotation speed fluctuation. | 02-27-2014 |
20140073476 | DRIVING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE DRIVING DEVICE - A driving device includes a drive source, a planetary gear decelerator, a drive-target shaft, a rotation speed detector, and a sensor mount. The planetary gear decelerator includes a planetary gear mechanism equipped with an output shaft, a sun gear, an outer gear, a plurality of planetary gears, and a rotatable first carrier. The outer gear is made of resin and includes a deformable portion at a drive target side, and the deformable portion is elastically deformable in a radial direction. The plurality of planetary gears engages the sun gear and the outer gear. The rotatable first carrier rotatably supports the planetary gears. The rotation speed detector detects a rotation speed of the planetary gear decelerator, and includes a sensor and a detection target disposed coaxially on the output shaft. The sensor mount supports the sensor and moves in the radial direction in accordance with elastic deformation of the outer gear. | 03-13-2014 |
20140356027 | DRIVE TRANSMISSION DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME - A drive transmission device that transmits rotation from a drive source of an image forming apparatus to a rotary body detachably attachable relative to a main body thereof in an axial direction includes two external gears, a cylindrical member, and an intermediate-body retainer. The two external gears include teeth on an outer circumferential surface thereof extending in an axial direction. The cylindrical member includes an internal gear formed on an inner circumferential surface thereof to mesh with the external gears, and a flange on a portion of an outer circumferential surface of the cylindrical member, the flange including a projection. The intermediate-body retainer includes a depression to fit with the projection of the flange to prevent the cylindrical member from getting disengaged from the external gears. The external gears constitute a two-stage spline joint that meshes with the internal gear of the cylindrical member. | 12-04-2014 |
20150047459 | ROTATOR DRIVING SYSTEM AND IMAGE FORMING APPARATUS WITH SAME - A rotator driving system for driving a rotator with a motor includes a dynamic vibration absorber attached to a rotary shaft of the rotator. The dynamic vibration absorber includes an inertia body, a viscosity-providing component to provide a viscosity, and a torsion spring unit to function as a torsion spring that includes a boss fixed to the rotary shaft. Multiple spokes extend radially outward from the boss. Multiple seats are provided at respective tips of the multiple spokes to fix the inertia body. The torsion spring unit is fixed by both the rotary shaft of the rotator and the boss fixed to the rotary shaft therebetween. The viscosity-providing component supports the inertia body via the multiple seats provided at the respective tips of the multiple spokes. | 02-19-2015 |
20150053032 | POWER TRANSMISSION DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A power transmission device includes a drive coupling, a driven coupling, and an intermediate transmission member. The drive coupling receives power from a drive source and rotates. The driven coupling is disposed coaxially on a first rotary shaft of the drive coupling and detachably attachable relative to the main body of the image forming apparatus. The intermediate transmission member meshes with the drive coupling and the driven coupling and is held by one of the drive coupling and the driven coupling in a state in which the driven coupling is disengaged from the main body. One of the drive coupling and the driven coupling, whichever holds the intermediate transmission member, constitutes a retaining coupling including an attachment member attached to one of a drive-side device and a driven-side device, and a stopper assembly facing the intermediate transmission member in an axial direction of the first rotary shaft. | 02-26-2015 |
Patent application number | Description | Published |
20130234893 | BROADCASTING DEVICE, POSITION MANAGEMENT SYSTEM, BROADCASTING METHOD, AND STORAGE MEDIUM - A broadcasting device includes a broadcasting unit configured to broadcast positional information indicating the position of the broadcasting device; and a receiving unit configured to receive, from a communication terminal receiving the broadcast positional information, terminal identification information for identifying the communication terminal and the positional information. | 09-12-2013 |
20130244697 | POSITION MANAGEMENT SYSTEM, APPARATUS AND METHOD FOR DISTRIBUTING POSITION DATA - A distribution apparatus includes a distribution unit configured to distribute position data indicating a position of the distribution apparatus, a reception unit configured to receive data from a communication terminal that received the position data distributed by the distribution unit, the data received from the communication terminal including terminal identification data for identifying the communication terminal and the position data, and a transmission unit configured to transmit terminal setting data of the communication terminal. The reception unit is configured to receive the terminal setting data from a position data management system according to an inquiry transmitted from the communication terminal. | 09-19-2013 |
20130316729 | POSITION INFORMATION MANAGEMENT SYSTEM, POSITION INFORMATION MANAGEMENT METHOD, AND MANAGEMENT SERVER - A position information management system is disclosed, including a communication apparatus which includes a storage unit which stores therein position information of the communication apparatus; a wireless terminal which includes identification information and which communicates with the communication apparatus; and a management server which manages a position of the wireless terminal, wherein the management server further includes a position information receiving unit which receives the identification information and the position information from the communication apparatus; a storage unit which stores therein the communication apparatus and registered position information of the communication apparatus; a determining unit which determines whether the position information received by the position information receiving unit and stored in the storage unit and the registered position information match; and a management unit which manages a position of the wireless terminal with the identification information and the position information that is determined to match by the determining unit. | 11-28-2013 |
20130324153 | COMMUNICATION APPARATUS, POSITION INFORMATION MANAGEMENT SYSTEM, AND POSITION INFORMATION MANAGEMENT METHOD - A communication apparatus which transmits information on a position at which the communication apparatus is positioned is disclosed. The communication apparatus includes a detecting unit which detects one of a first signal which is detected when the communication apparatus is fixed to an installed location and a second signal which is detected when the communication apparatus is brought to a state in which it is not fixed to the installed location; a storage unit which stores therein the position information; and a control unit which erases the position information stored in the storage unit when the second signal is detected after the first signal is detected by the detecting unit. | 12-05-2013 |
20130342399 | BROADCASTING DEVICE, COMMUNICATION TERMINAL, AND BROADCASTING SYSTEM - A broadcasting device includes a broadcasting unit configured to broadcast positional information indicating an indoor position of the broadcasting device to a predetermined area, wherein the broadcasting unit broadcasts range information indicating the size of the predetermined area together with the positional information. | 12-26-2013 |
20140004879 | COMMUNICATION DEVICE AND COMMUNICATION SYSTEM | 01-02-2014 |
20140071853 | INFORMATION MANAGEMENT SYSTEM, WIRELESS TERMINAL, AND MANAGEMENT METHOD - An information management system is disclosed that includes a wireless terminal configured to store identification data of the wireless terminal used to identify the wireless terminal in the system; a broadcasting device configured to transmit position data which represents a position at which the device is located for a predetermined area; and a server configured to store position data indicating a position at which the terminal is located. The terminal includes a collection unit configured to collect environmental data which represents a state of an environment around the terminal; a receiving unit configured to receive the position data from the device when the terminal is located in the predetermined area; and a transmission unit configured to transmit, via the device, to the server, the identification of the terminal, the position data received from the device, and the environmental data collected by the collection unit. | 03-13-2014 |
20140087710 | COMMUNICATION TERMINAL, COMMUNICATION METHOD, AND RECORDING MEDIUM STORING COMMUNICATION TERMINAL CONTROL PROGRAM - A communication terminal, a communication method, and a communication terminal control program stored in a non-transitory recording medium, each of which is capable of receiving location data indicating a location at which at least one transmission device of a transmission system is located, using a receiver. The receiver is activated so as to start receiving the location data, when a stop of a movement of the communication terminal is detected. | 03-27-2014 |
20140087766 | TRANSMISSION SYSTEM, LOCATION MANAGEMENT SYSTEM, AND METHOD OF TRANSMITTING LOCATION DATA - A transmission system, a location management system, and a transmission method, each of which transmits first location data and second location data, respectively, from a first transmission device and a second transmission device, and receives, at the second transmission device, the first location data and terminal identification data that identifies a communication terminal, from the communication terminal that receives at least the first location data. | 03-27-2014 |
20140087767 | COMMUNICATION TERMINAL, COMMUNICATION METHOD, AND RECORDING MEDIUM STORING COMMUNICATION TERMINAL CONTROL PROGRAM - A communication terminal, a communication method, and a communication terminal control program stored in a non-transitory recording medium, each of which receives, from a first transmission device, first location data indicating a location at which the first transmission device is located, and transmits the first location data and terminal identification data that identifies the communication terminal, to a second transmission device, which is a separate device from the first transmission device. | 03-27-2014 |
20140087768 | RECEIVER SYSTEM, LOCATION MANAGEMENT SYSTEM, AND METHOD OF RECEIVING LOCATION DATA - A receiver system, a location management system, and a receiving method, each of which transmits first location data from a first receiver device, and receives, at a second receiver device, the first location data and terminal identification data that identifies a communication terminal, from the communication terminal that receives at least the first location data. | 03-27-2014 |
Patent application number | Description | Published |
20090015917 | THREE-DIMENSIONAL IMAGE DISPLAY APPARATUS - In the present invention, there is provided a three-dimensional image display apparatus, including: (A) a light source including U | 01-15-2009 |
20090303597 | THREE-DIMENSIONAL IMAGE DISPLAY APPARATUS - A three-dimensional image display apparatus includes a light source and an optical system including a light modulation unit having pixels for generating a two-dimensional image by modulating light from the light source by the respective pixels and emitting a spatial frequency in the generated two-dimensional image along a diffraction angle corresponding to diffraction orders generated from the respective pixels, a Fourier transform image formation unit for performing Fourier transform on the spatial frequency in the two-dimensional image to generate Fourier transform images corresponding to the diffraction orders, a Fourier transform image selection unit for selecting a Fourier transform image corresponding to a desired diffraction order among the Fourier transform images, and a conjugate image formation unit for forming a conjugate image of the selected Fourier transform image, and further includes a semi-transmissive mirror for changing a light ray travelling direction emitted from the optical system. | 12-10-2009 |
20110043909 | THREE-DIMENSIONAL IMAGE DISPLAY APPARATUS - Disclosed herein is a three-dimensional image display apparatus, including: a light source configured to emit light from a plurality of light emitting positions disposed discretely; optical modulation means for including a plurality of pixels and configured such that a plurality of light beams successively emitted from the different light emitting positions of the light source and having different incoming directions from each other are modulated individually by the pixels to generate two-dimensional images and spatial frequencies of the generated two-dimensional images are individually emitted along diffraction angles corresponding to a plurality of diffraction orders generated from the pixels; and Fourier transform image forming means for Fourier transforming the spatial frequencies of the two-dimensional images emitted from the optical modulation means to produce a number of Fourier transform images corresponding to the plural number of diffraction orders to form the Fourier transform images. | 02-24-2011 |
20110248904 | HEAD MOUNTED DISPLAY AND OPTICAL POSITION ADJUSTMENT METHOD OF THE SAME - Disclosed herein is an optical position adjustment method of a head mounted display, the head mounted display including (a) an eyeglass type frame worn on the head of a viewer, and (b) two image display devices for the right and left eyes attached to the frame, and each of the image display devices including (A) an image forming device, and (B) an optical device adapted to receive, guide and emit light emitted from the image forming device, wherein the optical position adjustment method includes the step of: controlling an image signal that is supplied to the image forming device making up at least one of the image display devices so as to control the position of the image displayed on the optical device making up at least one of the image display devices and adjust the mutual positions of the two images. | 10-13-2011 |
20140347252 | HEAD MOUNTED DISPLAY AND OPTICAL POSITION ADJUSTMENT METHOD OF THE SAME - Disclosed herein is an optical position adjustment method of a head mounted display, the head mounted display including (a) an eyeglass type frame worn on the head of a viewer, and (b) two image display devices for the right and left eyes attached to the frame, and each of the image display devices including (A) an image forming device, and (B) an optical device adapted to receive, guide and emit light emitted from the image forming device, wherein the optical position adjustment method includes the step of: controlling an image signal that is supplied to the image forming device making up at least one of the image display devices so as to control the position of the image displayed on the optical device making up at least one of the image display devices and adjust the mutual positions of the two images. | 11-27-2014 |