Patent application number | Description | Published |
20090039386 | Semiconductor Device - A semiconductor device comprises a first base layer of a first conductivity type; a plurality of second base layers of a second conductivity type, provided on a part of a first surface of the first base layer; trenches formed on each side of the second base layers, and formed to be deeper than the second base layers; an emitter layer formed along the trench on a surface of the second base layers; a collector layer of the second conductivity type, provided on a second surface of the first base layer opposite to the first surface; an insulating film formed on an inner wall of the trench, the insulating film being thicker on a bottom of the trench than on a side surface of the trench; a gate electrode formed within the trench, and isolated from the second base layers and the emitter layer by the insulating film; and a space section provided between the second base layers adjacent to each other, the space section being deeper than the second base layers and being electrically isolated from the emitter layer and the second base layers. | 02-12-2009 |
20110101417 | SEMICONDUCTOR DEVICE - A semiconductor device comprises a first base layer of a first conductivity type; a plurality of second base layers of a second conductivity type, provided on a part of a first surface of the first base layer; trenches formed on each side of the second base layers, and formed to be deeper than the second base layers; an emitter layer formed along the trench on a surface of the second base layers; a collector layer of the second conductivity type, provided on a second surface of the first base layer opposite to the first surface; an insulating film formed on an inner wall of the trench, the insulating film being thicker on a bottom of the trench than on a side surface of the trench; a gate electrode formed within the trench, and isolated from the second base layers and the emitter layer by the insulating film; and a space section provided between the second base layers adjacent to each other, the space section being deeper than the second base layers and being electrically isolated from the emitter layer and the second base layers. | 05-05-2011 |
Patent application number | Description | Published |
20090087213 | CHARGING DEVICE INCLUDING CHARGING ROLLER AND CLEANING ROLLER - A charging device, a process cartridge, and an image forming apparatus are provided. The charging device includes a charging roller configured to charge an image carrier and a cleaning roller configured to clean the charging roller while making contact with a surface of the charging roller. The charging device further includes a bearing member including a first portion configured to rotatably support a rotational shaft of the charging roller and a second portion configured to rotatably support a rotational shaft of the cleaning roller. The charging device also includes an elastic member provided outside of the second portion of the bearing member with respect to an axial direction of the rotational shaft of the cleaning roller such that the charging roller makes contact with the image carrier when the first portion of the bearing member is pressed by the elastic member. | 04-02-2009 |
20110206432 | Image forming apparatus - An image forming apparatus includes a plurality of image forming units that are arranged in parallel so as to be opposed to an intermediate transfer belt or a transfer carriage belt. A black image forming unit that forms a black toner image is arranged at a downstream end or upstream end in the running direction of the intermediate transfer belt or the transfer carriage belt with respect to the other image forming units. The black image forming unit is configured so that its lubricant supplying unit contains a larger amount of lubricant. | 08-25-2011 |
20110262179 | CHARGING DEVICE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND TONER - A cleaning roller cleaning a surface of a cleaning component, wherein the cleaning roller is provided in a roller configuration having a cylindrical shape and has a portion in contact with the cleaning component, the portion being made of a melamine resin foam having a continuous foam structure, the melamine resin foam being provided by heating compression from an original configuration in a radial direction, and wherein the portion in contact with the cleaning component has a continuous foam structure and a tensile strength in a range of 1.7±0.5 kg/cm | 10-27-2011 |
20130243449 | LUBRICANT SUPPLYING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - A lubricant supplying device includes: lubricant; a supplying member that supplies the lubricant to a lubricant supply target; and a remaining amount detecting unit that detects that a remaining amount of the lubricant is equal to or smaller than a certain amount. The remaining amount detecting unit includes a first electrode member and a second electrode member. The lubricant supplying device further comprises a member that causes at least a part of the second electrode member to move and causes the second electrode member to abut the first electrode member with an increase in consumption of the lubricant. | 09-19-2013 |
20130251380 | LUBRICANT SUPPLYING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - In an embodiment, provided is a lubricant supplying device that includes: a solid lubricant; a supplying member that supplies lubricant of the solid lubricant to a lubricant supplying target; and a remaining amount detecting unit that detects an amount of the solid lubricant being at a given amount or less. The remaining amount detecting unit is provided on a downstream side in a rubbing direction of the supplying member with respect to the solid lubricant. | 09-26-2013 |
20130251381 | LUBRICANT SUPPLYING DEVICE, AND IMAGE FORMING APPARATUS - In the present invention, a lubricant supplying device includes a lubricant end determining unit that determines that a solid lubricant is in an end state when the amount of a lubricant supplying operation reaches a threshold after a residual amount detecting unit detects that the residual amount of the solid lubricant is equal to or smaller than a predetermined amount. The lubricant end determining unit makes a threshold of the amount of the lubricant supplying operation at temperature or humidity of equal to or lower than a predetermined value lower than a threshold of the amount of the lubricant supplying operation at temperature or humidity of higher than the predetermined value. | 09-26-2013 |
20140147170 | IMAGE CARRIER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An image carrier includes a tubular image carrier body to carry an image on an outer circumferential surface thereof, a shaft disposed inside the image carrier body, a first flange mounted on the shaft, and a second flange spaced apart from the first flange in an axial direction of the image carrier and mounted on the shaft. Each of the first flange and the second flange includes a through-hole contacting the shaft, a first engagement portion to engage a lateral end of the image carrier body in the axial direction of the image carrier, and a second engagement portion, constituting at least a part of the through-hole, to engage the shaft. The second engagement portion is disposed inboard from the first engagement portion in the axial direction of the image carrier. | 05-29-2014 |
20140199091 | DETACHABLE UNIT AND IMAGE FORMING APPARATUS INCORPORATING SAME - A detachable device, which can be included in an image forming apparatus, includes a unit drive mechanism, and a cover disposed at one end and an opposite end in the given attachment/detachment direction to cover the unit drive mechanism thereof. The cover includes a first cover and a second cover. The first cover includes at least one first inlet port to intake air from the apparatus body and guide the air to the detachable unit. The second cover includes a second inlet port to intake the air guided into the detachable unit and an air outlet port to exhaust the air introduced from the second inlet port to the apparatus body. | 07-17-2014 |
20140270881 | LUBRICANT SUPPLY DEVICE, PROCESS UNIT, IMAGE FORMING APPARATUS, AND PROCESS UNIT MANUFACTURING METHOD - A lubricant supply device includes a solid lubricant, a lubricant holder to hold the solid lubricant, a lubricant supply member to supply lubricant to a lubrication target, a pressing member to press the solid lubricant toward the lubricant supply member, and a pressing force adjuster to change an amount of pressing force exerted by the pressing member. | 09-18-2014 |
Patent application number | Description | Published |
20080298291 | SEMICONDUCTOR DEVICE - Aiming at realizing high breakdown voltage and low ON resistance of a semiconductor device having the super-junction structure, the semiconductor device of the present invention has a semiconductor substrate having an element forming region having a gate electrode formed therein, and a periphery region formed around the element forming region, and having an field oxide film formed therein; and a parallel p-n layer having n-type drift regions and p-type column regions alternately arranged therein, formed along the main surface of the semiconductor substrate, as being distributed over the element forming region and a part of the periphery region, wherein the periphery region has no column region formed beneath the end portion on the element forming region side of the field oxide film and has p-type column regions as at least one column region formed under the field oxide film. | 12-04-2008 |
20080299726 | SEMICONDUCTOR APPARATUS AND METHOD OF MANUFACTURING SEMICONDUCTOR APPARATUS - A semiconductor apparatus with a superjunction structure includes a gate electrode which fills a trench that is formed in an epitaxial layer, and a column region which is surrounded by the gate electrode in a plane view. A photomask for forming the column region is elaborated. The photomask has a compensation pattern that compensates a deformation of a photo resist pattern caused by photo interference and a deformation of the ion implantation region diffused by heat treatment. Therefore extending direction of the gate electrode and the outer edge of the column region are substantially parallel. | 12-04-2008 |
20090275180 | METHOD FOR MANUFACTURING A SEMICONDUCTOR DEVICE - A conventional power MOSFET structure is difficult to improve a breakdown voltage of an element even using a super-junction structure. A power MOSFET according to an embodiment of the invention is a semiconductor device of a super-junction structure, including: a gate electrode filled in a trench formed on a semiconductor substrate; a gate wiring metal forming a surface layer; and a gate electrode plug connecting between the gate electrode and the gate wiring metal. Thus, a polysilicon layer necessary for the conventional typical power MOSFET is unnecessary. That is, column regions of an element active portion and an outer peripheral portion can be formed under the same conditions. As a result, it is possible to improve an element breakdown voltage as compared with the conventional one. | 11-05-2009 |
Patent application number | Description | Published |
20120099126 | DETECTING DEVICE, DETECTING METHOD, AND IMAGE FORMING APPARATUS - A detecting device includes a detecting unit that detects an image on a medium transported in a transport path. The detecting unit includes a light emitter, a light receiver, and a light adjusting portion. The light emitter emits light toward the transport path in which the medium is transported. The light receiver receives reflected light of the light emitted from the light emitter. The light adjusting portion adjusts a quantity of light received by the light receiver according to a quantity of light emitted from the light emitter. | 04-26-2012 |
20120099168 | DETECTION DEVICE AND IMAGE FORMING DEVICE - There is provided a detection device including: a detection section detecting an image on a medium conveyed along the conveyance path or the medium; a reference member that is disposed at an opposite side of the conveyance path from the side thereof at which the illumination unit is disposed and that is provided to be rotatable with a rotation axis direction being a width direction of the medium; a test face comprising one of reflection faces of the reference member; a position detection pattern provided at the test face; a focal point detection pattern provided at the test face, the focal point detection pattern enabling detection by the detection section of a focal point; and a depth detection portion provided at the test face, the depth detection portion enabling detection by the detection section of an illumination depth of the light illuminated from a illumination unit. | 04-26-2012 |
20120099873 | SENSING DEVICE, IMAGE FORMING DEVICE - A sensing device including: a sensing section having an illuminating section that illuminates light and a light-receiving section that receives reflected light of light illuminated from the illuminating section, the sensing section sensing an image on a recording medium; a housing that accommodates the illuminating section; a covering member covering the housing, that is freely installed at and removed from the housing, having a transmitting member through which the light from the illuminating section is transmitted; and a setting section disposed at an opposite side to a housing side with respect to the covering member, the setting section being freely installed at and removed from the housing, and having a setting surface that sets a position at which the recording medium reflects light, wherein, at a positioning portion of the setting section, the covering member is positioned at least in a direction perpendicular to the setting surface, is provided. | 04-26-2012 |
20120099874 | DETECTION DEVICE AND IMAGE FORMING APPARATUS - A detection device includes: a detection member that includes an emission member emitting a beam toward a transportation direction of a transportation path and a beam receiving member receiving a reflected beam of the beam emitted from the emission member, and that detects an image on a medium; a transmissive member that allows the beam emitted from the emission member and the beam reflected from the medium to be transmitted therethrough; and a support member that has an open portion blocked by the transmissive member, and that supports an upstream end portion of the transmissive member in the transportation direction of the medium at an upstream portion of the open portion toward the medium, an edge portion of a downstream portion of the open portion in the transportation direction being located closer to the emission member than a bottom surface of the transmissive member. | 04-26-2012 |
20120099884 | DETECTION DEVICE AND IMAGE FORMING APPARATUS - A detection device includes: an imaging unit that forms an image of an incident beam on an image detection unit; an emission unit that includes a guided portion that is guided to a guiding portion provided at the imaging unit and guiding an attachment-detachment operation of the guided portion, a positioned portion that is positioned in a positioning portion provided at the imaging unit, and an emission member that emits a beam toward a direction of a transportation path such that a beam reflected from the medium is incident to the imaging unit; and a setting unit that includes a positioned portion that is positioned in a positioning portion provided at the emission unit when a drawing unit is pressure-inserted into the image forming apparatus and a setting surface that sets a position on the medium at which the beam is reflected. | 04-26-2012 |
20120106987 | DETECTION APPARATUS AND IMAGE FORMING APPARATUS - A detection apparatus includes a transmission member that is provided facing a conveying path on which a medium is conveyed and that transmits light from the medium being conveyed on the conveying path; a detection section that detects the medium or an image on the medium according to the light which is transmitted by the transmission member, wherein the light is received by a light-receiving member of the detection section; and an opposing member provided on an opposite side of the conveying path from the transmission member and having at least one opposing surface that faces the transmission member. In a conveying direction of the medium, a length of the opposing surface is shorter than a length of a detection surface. | 05-03-2012 |
Patent application number | Description | Published |
20120076526 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image bearing member rotatably supported in a body of the image forming apparatus, and bearing a developer image; a developing device including a developing container, a developing member, and a transporting member, the developing container containing a developer, the developing member disposed so as to oppose the image bearing member, the developing member having thereon the developer in the developing container and rotating to develop a latent image, the transporting member transporting the developer in the developing container while stirring the developer, the developing device being unremovably supported with respect to the body of the image forming apparatus; and a damping member disposed with respect to an axial direction of a rotational axis of the developing member so as to be situated at an end portion of the developing container in the axial direction, and restraining vibration of the developing container. | 03-29-2012 |
20120076548 | POWDER HOLDING CONTAINER AND IMAGE FORMING APPARATUS - A powder holding container includes: a tubular shaped section that is formed in a tubular shape with a hole formed in a tube wall for letting powder pass through; an opening and closing member that moves in a straight line inside the tubular shaped section to open and close the hole; a projection portion that projects out from the opening and closing member and enters the hole; and a resilient tab that is formed by a cutout provided in the opening and closing member, and is resiliently deformable in directions in which the projection portion enters or exits the hole. | 03-29-2012 |
20140056623 | DEVELOPMENT METHOD, DEVELOPING DEVICE, AND IMAGE FORMING ASSEMBLY AND IMAGE FORMING APPARATUS INCLUDING THE DEVELOPING DEVICE - A development method is used for a developing device including a toner holding member that faces but is not in contact with an image carrier carrying a latent image and that rotates while holding a nonmagnetic toner, a charging member that charges the toner, and a developing electric field forming unit that forms a developing electric field at least including a direct current component to cause the charged toner to fly and adhere to the latent image to develop the latent image. The method includes, when the developing electric field is applied such that the toner is caused to fly toward the image carrier by the direct current component of the developing electric field alone, maintaining a non-electrostatic adhesion of the toner to the toner holding member to be about 2 nN or more under a low-temperature low-humidity environment of a temperature of 10° C. and a relative humidity of 15%. | 02-27-2014 |
20140147141 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developing device includes a transporting unit that rotates while facing an image carrier that carries an electrostatic latent image, the transporting unit transporting developer toward the image carrier; a feeding unit that contacts the transporting unit to feed the developer to the transporting unit; a transport path that connects a containing chamber that contains the developer to a feeding chamber that houses the feeding unit; a supplying unit that retains the developer to be supplied in the transport path and supplies the developer to the feeding unit in a supply region that is separated from a contact region in which the feeding unit contacts the transporting unit; and an attaching unit that is disposed downstream of the contact region and upstream of the supply region in a rotation direction of the feeding unit and that attaches the developer to the feeding unit at a location below the contact region. | 05-29-2014 |
20140147142 | DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS USING THE SAME - There is provided a developing device including a toner holding member that is rotatably provided to face an image holding member and holds and transports a nonmagnetic single-component toner toward a development region to develop an electrostatic latent image on the image holding member, a supplying member that is rotatably provided in elastic contact with the toner holding member to supply the toner from a contact region therebetween to the toner holding member, a toner replenishing unit that faces a replenishment region at a portion apart from the contact region to replenish a new toner, and a regulating member that is provided on a downstream side of the contact region in a rotation direction thereof and on an upstream side of the development region to triboelectrically charge the toner held on the toner holding member and regulate the amount of toner provided for the development. | 05-29-2014 |
20140147144 | DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS USING THE SAME - A developing device includes a toner holding member that is rotatably installed opposite to an image holding member which holds a latent image and circularly moves, a supply member that has a rough surface capable of capturing toner, a toner supply portion that supplies new toner, and a restriction member that restricts an amount of toner used for development, wherein the toner supply portion connects an accommodation chamber to a developing chamber via a toner transport path, wherein a developing chamber side opening is located on a lower side of an accommodation chamber side opening of the toner transport path, and wherein a width size in a direction following a rotation direction of the supply member in the developing chamber side opening of the toner transport path is set to be smaller than an outer diameter of the supply member in a projection plane viewed from the supply member side. | 05-29-2014 |