Abstract: The SiC epitaxial wafer includes a substrate, and an SiC epitaxial growth layer disposed on the substrate, wherein an Si compound gas is used for a supply source of Si, and a Carbon (C) compound gas is used as a supply source of C, for the SiC epitaxial growth layer, wherein any one or both of the Si compound gas and the C compound gas is provided with a compound gas containing Fluorine (F), as the supply source. The Si compound is generally expressed with SinHxClyFz (n>=1, x>=0, y>=0, z>=1, x+y+z=2n+2), and the C compound is generally expressed with CmHqClrFs (m>=1, q>=0, r>=0, s>=1, q+r+s=2m+2) . There are provided a high quality SiC epitaxial wafer having few surface defects and having excellent film thickness uniformity and carrier density uniformity, a manufacturing apparatus of such an SiC epitaxial wafer, a fabrication method of such an SiC epitaxial wafer, and a semiconductor device.

Abstract: The present invention provides a heat conductive sheet that can maintain high heat conductivity and flexibility across a long period of time even in high temperature environments. The heat conductive sheet includes a (meth)acrylate polymer, a trimellitate ester plasticizer, a first antioxidant with a hindered phenol backbone, and a second antioxidant with a thioether backbone.

Abstract: Provided is an image forming apparatus including a manual feed tray for placing a sheet subjected to image formation, a sheet sensor configured to detect whether or not the sheet is placed on this manual feed tray, a pickup roller configured to feed the sheet placed on the manual feed tray, and a controller. When a size of a sheet to be fed is designated by a user, and it is determined that the sheet is placed, the controller causes at least one of the pickup roller and the manual feed tray to start movement to a position of enabling the pickup roller to feed the placed sheet.

Abstract: To provide silicon carbide epitaxial wafer in which occurrence of giant step bunchings (GSBs) caused by basal plane dislocations (BPDs) that occur during hydrogen etching is suppressed on low off-angle silicon carbide substrate to decrease surface defect density of epitaxially grown layer to allow formation of silicon carbide semiconductor device having high reliability, method for manufacturing the wafer, and apparatus for manufacturing the wafer, and silicon carbide semiconductor device having the wafer. A silicon carbide epitaxial wafer of the present invention is such that epitaxially grown layer is disposed on silicon carbide substrate which has ?-type crystal structure and in which (0001) Si face is tilted at greater than 0° and less than 5°, wherein surface defect density of the epitaxially grown layer based on giant step bunching caused by basal plane dislocation on substrate surface of the silicon carbide substrate is ?20/cm2.

Abstract: In an image forming apparatus (100) an image forming unit forms a first image of a first color and a second image of a second color. An obtaining unit obtains information related to relative positions of a first measurement image, which formed on an image carrier, of the first color and a second measurement image, which formed on an image carrier, of the second color. A generation unit generates correlation data based on first information corresponding to a first image forming speed and second information corresponding to second information. A controller, in a case where the image forming unit forms an image at the second image forming speed, corrects relative positions of the first image and the second image based on the first information in advance and the correlation data.

Abstract: An image forming apparatus includes a stacking portion on which a sheet is to be stacked, an image forming unit, a size detection unit, a setting unit, a notification unit, and a control unit. The image forming unit forms an image on a sheet fed from the stacking portion. The size detection unit detects a size of a sheet stacked on the stacking portion. The setting unit sets at least one sheet size to be allowed for use at the image forming apparatus. The notification unit provides notification of information. The control unit causes the notification unit to provide a warning in a case where the size of the sheet detected by the size detection unit is not included in the at least one sheet size set by the setting unit.

Abstract: To provide silicon carbide epitaxial wafer in which occurrence of giant step bunchings (GSBs) caused by basal plane dislocations (BPDs) that occur during hydrogen etching is suppressed on low off-angle silicon carbide substrate to decrease surface defect density of epitaxially grown layer to allow formation of silicon carbide semiconductor device having high reliability, method for manufacturing the wafer, and apparatus for manufacturing the wafer, and silicon carbide semiconductor device having the wafer. A silicon carbide epitaxial wafer of the present invention is such that epitaxially grown layer is disposed on silicon carbide substrate which has ?-type crystal structure and in which (0001) Si face is tilted at greater than 0° and less than 5°, wherein surface defect density of the epitaxially grown layer based on giant step bunching caused by basal plane dislocation on substrate surface of the silicon carbide substrate is ?20/cm2.

Abstract: An image forming apparatus includes a generation unit configured to generate correlation data indicating a relationship between a relative position of a first image and a second image corresponding to a first speed and a relative position of the first image and the second image corresponding to a second image forming speed; a controller configured to, in a case where a image forming unit forms an image at the second speed, correct a relative position of the first image and the second image based on first information and on correlation data; and a prohibition unit configured to prohibit formation of the measurement image at the second speed in a case where a housing unit does not house a predetermined recording material corresponding to the second speed.

Abstract: An image forming apparatus includes a unit configured to correct a relative position of a first image and a second image, and a controller configured to form a first measurement image in a case where a first condition is satisfied, and to form the first measurement image and a second measurement image in a case where a second condition is satisfied. The controller is further configured to, in a case where the first condition is satisfied, determine whether or not the second condition is satisfied before the first condition is satisfied next, and in a case where the second condition is satisfied before the first condition is satisfied next, cause an image forming unit to form the first measurement image and the second measurement image.

Abstract: An image forming apparatus comprising: an image carrier; an image forming unit configured to form a toner image on the image carrier by using toner, based on image information; a transfer unit configured to transfer the toner image formed on the image carrier to a sheet; a cleaning unit configured to clean toner on the image carrier; a collected toner box in which the toner cleaned by the cleaning unit is collected; a rotating member configured to be rotated for moving the toner in the collected toner box; and a controller configured to control, based on the image information, whether or not to rotate the rotating member.

Abstract: An image forming apparatus includes a generation unit configured to generate correlation data indicating a relationship between a relative position of a first image and a second image corresponding to a first speed and a relative position of the first image and the second image corresponding to a second image forming speed; a controller configured to, in a case where a image forming unit forms an image at the second speed, correct a relative position of the first image and the second image based on first information and on correlation data; and a prohibition unit configured to prohibit formation of the measurement image at the second speed in a case where a housing unit does not house a predetermined recording material corresponding to the second speed.

Abstract: An image forming apparatus includes a generation unit configured to generate correlation data indicating a relationship between a relative position of a first image and a second image corresponding to a first speed and a relative position of the first image and the second image corresponding to a second image forming speed; a controller configured to, in a case where an image forming unit forms an image at the second speed, correct a relative position of the first image and the second image based on first information and on correlation data; and a prohibition unit configured to prohibit formation of the measurement image at the second speed in a case where a housing unit does not house a predetermined recording material corresponding to the second speed.

Abstract: Provided is a practical heat insulating particulate pigment having high heat insulating properties. Provided therefore is a heat insulating particulate pigment having a cholesteric resin layer with cholesteric regularity controlled such that, in a wavelength range of 800 nm to 1,900 nm, the cholesteric resin layer has a band of reflecting 40% or more of incident light with a bandwidth equal to or wider than 200 nm.

Abstract: An image forming apparatus comprising: an image carrier; an image forming unit configured to form a toner image on the image carrier by using toner, based on image information; a transfer unit configured to transfer the toner image formed on the image carrier to a sheet; a cleaning unit configured to clean toner on the image carrier; a collected toner box in which the toner cleaned by the cleaning unit is collected; a rotating member configured to be rotated for moving the toner in the collected toner box; and a controller configured to control, based on the image information, whether or not to rotate the rotating member.

Abstract: An image forming apparatus includes a unit configured to correct a relative position of a first image and a second image, and a controller configured to form a first measurement image in a case where a first condition is satisfied, and to form the first measurement image and a second measurement image in a case where a second condition is satisfied. The controller is further configured to, in a case where the first condition is satisfied, determine whether or not the second condition is satisfied before the first condition is satisfied next, and in a case where the second condition is satisfied before the first condition is satisfied next, cause an image forming unit to form the first measurement image and the second measurement image.

Abstract: An image forming apparatus includes: a generation unit configured to generate correlation data indicating a relationship between a relative position of a first image and a second image corresponding to a first speed and a relative position of the first image and the second image corresponding to a second image forming speed; a controller configured to, in a case where a image forming unit forms an image at the second speed, correct a relative position of the first image and the second image based on first information and on correlation data; and a prohibition unit configured to prohibit formation of the measurement image at the second speed in a case where a housing unit does not house a predetermined recording material corresponding to the second speed.

Abstract: An image forming apparatus includes a stacking portion on which a sheet is to be stacked, an image forming unit, a size detection unit, a setting unit, a notification unit, and a control unit. The image forming unit forms an image on a sheet fed from the stacking portion. The size detection unit detects a size of a sheet stacked on the stacking portion. The setting unit sets at least one sheet size to be allowed for use at the image forming apparatus. The notification unit provides notification of information. The control unit causes the notification unit to provide a warning in a case where the size of the sheet detected by the size detection unit is not included in the at least one sheet size set by the setting unit.

Abstract: A method of reducing heat in an electronic device includes providing a housing, providing a heat generating component and positioning a heat reduction sheet between the housing and the heat generating component. The heat reduction sheet includes a substrate, a first porous layer and a second porous layer. Each of the substrate and first and second porous layers has a first main surface and a second main surface. The first porous layer has an average cavity diameter of between approximately 0.01 ?m and approximately 10 ?m. The second porous layer has an average cavity diameter of between approximately 0.01 ?m and approximately 10 ?m. At least a portion of the first main surface of the substrate is in contact with at least part of the first main surface of the first porous layer. At least a portion of the second main surface of the substrate is in contact with at least part of the first main surface of the second porous layer.

Abstract: There is provided a zinc oxide based compound semiconductor device in which drive voltage is not raised, property of crystal is satisfactory and device characteristics is excellent, even when the semiconductor device is formed by forming a lamination portion having a hetero junction of the ZnO based compound semiconductor layers. The zinc oxide based compound semiconductor device includes a substrate (1) made of MgxZn1-xO (0?x?0.5), the principal plane of which is a plane A (11-20) or a plane M (10-10), and single crystal layers (2) to (6) made of zinc oxide based compound semiconductor, which are epitaxially grown on the principal plane of the substrate (1) in such orientation that a plane parallel to the principal plane is a plane {11-20} or a plane {10-10} and a plane perpendicular to the principal plane is a plane {0001}.

Abstract: A heat insulating member including at least one cholesteric resin layer having cholesteric regularity controlled such that, in a wavelength range of 800 nm to 2,500 nm, the cholesteric resin layer has a band of reflecting 40% or more of incident light with a wavelength width equal to or wider than 300 nm; and a binder layer containing a pigment, the heat insulating member having a yellow index of 2.0 or lower.