Abstract: According to one embodiment, at first, a compound semiconductor layer is bonded to a position straddling a plurality of chip formation regions arranged on a substrate. One of the chip formation regions has a first size, and the compound semiconductor layer has a second size smaller than the first size. Thereafter, the compound semiconductor layer is processed to provide compound semiconductor elements on the chip formation regions. Then, the substrate is divided to correspond to the chip formation regions.

Abstract: According to one embodiment, there is provided an optical coupling module including an optical device and an adaptor. The adaptor is attached to the optical device. The optical device has an optical element and a via. The optical element is placed on a first principal surface of a substrate. The via is placed in the substrate at a position corresponding to the optical element. The via has a first opening in a second principal surface of the substrate opposite to the first principal surface. The via does not reach the first principal surface. The adaptor has a guide hole having a second opening in a third principal surface of the adaptor opposite the second principal surface. The second opening corresponds to the first opening. The guide hole has a third opening in a fourth principal surface of the adaptor.

Abstract: According to one embodiment, at first, a compound semiconductor layer is bonded to a position straddling a plurality of chip formation regions arranged on a substrate. One of the chip formation regions has a first size, and the compound semiconductor layer has a second size smaller than the first size. Thereafter, the compound semiconductor layer is processed to provide compound semiconductor elements on the chip formation regions. Then, the substrate is divided to correspond to the chip formation regions.

Abstract: An optical semiconductor module includes a resin body having a first surface and an opposed second surface, an optical device having a third surface and a fourth surface opposite the third surface, the optical device comprising an optical element located at the fourth surface, the optical element capable of at least one of receiving light from, and transmitting light through, the third surface, a first terminal located at the first surface of the resin body, and an electrical connection between the first terminal and the optical device, the electrical connection embedded in the resin body.

Abstract: There are provided a medium conveying device and an image recording apparatus that can convey a medium without the generation of wrinkles and floating. Projections having the same size are regularly disposed on the peripheral surface of an image recording drum to form recessed portions and protruding portions on the peripheral surface of the image recording drum. An interval between the projections disposed in a middle region is set to be smaller than an interval between the projections disposed in both end regions. Accordingly, when a sheet is pressed against the peripheral surface of the image recording drum by a pressing roller, forces for pulling the sheet to the outside from the middle in a width direction can be generated. As a result, the sheet can be made to come into close contact with the peripheral surface of the image recording drum without the generation of wrinkles and floating.

Abstract: According to one embodiment, at first, a compound semiconductor layer is bonded to a position straddling a plurality of chip formation regions arranged on a substrate. One of the chip formation regions has a first size, and the compound semiconductor layer has a second size smaller than the first size. Thereafter, the compound semiconductor layer is processed to provide compound semiconductor elements on the chip formation regions. Then, the substrate is divided to correspond to the chip formation regions.

Abstract: According to one embodiment, a current outputting circuit includes an output node, a first circuit outputting a first signal and a second signal based on an input signal, the first and second signals having phases of complementary relationship, and a second circuit outputting an output current from the output node based on the first and second signals. The second circuit includes a first current source with a first terminal and a second terminal, the first terminal being connected to a first power source, and a first transistor with a third terminal, a fourth terminal and a fifth terminal, the first signal being input to the third terminal, the fourth and fifth terminals sandwiching a first current path controlled by the first signal, the fourth terminal being connected to the second terminal, the fifth terminal being connected to the output node. The second signal is input to the fifth terminal.

Abstract: According to one embodiment, an amplification circuit includes an amplifier having a gain based on a gain control signal and amplifying an input signal by the gain, and a control portion outputting the gain control signal for increasing the gain after decreasing the gain based on an amplitude of the input signal, when the amplitude of the input signal is detected.

Abstract: Provided are a sintered ceramic and a ceramic sphere which are inhibited from suffering surface peeling due to fatigue resulting from repetitions of loading and can attain an improvement in dimensional accuracy when subjected to surface processing and which have excellent wear resistance and durability.

Abstract: According to one embodiment, a current outputting circuit includes an output node, a first circuit outputting a first signal and a second signal based on an input signal, the first and second signals having phases of complementary relationship, and a second circuit outputting an output current from the output node based on the first and second signals. The second circuit includes a first current source with a first terminal and a second terminal, the first terminal being connected to a first power source, and a first transistor with a third terminal, a fourth terminal and a fifth terminal, the first signal being input to the third terminal, the fourth and fifth terminals sandwiching a first current path controlled by the first signal, the fourth terminal being connected to the second terminal, the fifth terminal being connected to the output node. The second signal is input to the fifth terminal.

Abstract: According to one embodiment, an optical device includes an optical element and a via. The optical element is provided directly on a second main surface opposed to a first main surface of a semiconductor substrate. The via is aligned with the optical element and formed to extend halfway in a thickness direction from the first main surface of the semiconductor substrate.

Abstract: There are provided a medium conveying device and an image recording apparatus that can convey a medium without the generation of wrinkles and floating. Projections having the same size are regularly disposed on the peripheral surface of an image recording drum to form recessed portions and protruding portions on the peripheral surface of the image recording drum. An interval between the projections disposed in a middle region is set to be smaller than an interval between the projections disposed in both end regions. Accordingly, when a sheet is pressed against the peripheral surface of the image recording drum by a pressing roller, forces for pulling the sheet to the outside from the middle in a width direction can be generated. As a result, the sheet can be made to come into close contact with the peripheral surface of the image recording drum without the generation of wrinkles and floating.

Abstract: According to one embodiment, an amplification circuit includes an amplifier having a gain based on a gain control signal and amplifying an input signal by the gain, and a control portion outputting the gain control signal for increasing the gain after decreasing the gain based on an amplitude of the input signal, when the amplitude of the input signal is detected.

Abstract: According to one embodiment, an amplification circuit includes an amplifier having a gain and amplifying the input signal based on the gain, and a gain control signal generator controlling the gain based on an amplitude of the input signal. The gain obtained when the amplitude of the input signal is less than a first amplitude and when the amplitude of the input signal is greater than a second amplitude is lower than the gain obtained when the amplitude of the input signal is between the first and second amplitudes or when the amplitude of the input signal is one of the first and second amplitudes. The second amplitude is greater than or equal to the first amplitude.

Abstract: A conveyance device includes an image-forming drum (52) which fixes a rear surface (PB) of a sheet (P) and conveys the sheet along an arc-shaped path at a transfer position (312), a chain gripper which includes a gripper (64D) which is disposed on the downstream side of the image-forming drum in a conveyance direction and holds a leading end portion of the sheet, conveys the sheet along the arc-shaped path at the transfer position, and is disposed at a position at which a portion of the path leads to the image-forming drum side from the transfer position, and a blower unit (300) which is disposed on the chain gripper side from the transfer position, blows air from the chain gripper side to the image-forming drum side on the downstream side of the transfer position in the conveyance direction, and blows air toward the sheet conveyed by the chain gripper.

Abstract: A printing device includes an image recording portion which records an image on a sheet, an image defect detection unit which detects the sheet on which image defects occur, a setting unit by which a sorting number of copies of the sheets is set, a first stamper unit which attaches ink to a leading end edge of the sheet on which the image defects occur, and a second stamper unit which is disposed so as to be arranged with the first stamper unit in a sheet width direction and attaches ink to the leading end edge of the sheet corresponding to the sorting number of copies.

Abstract: According to one embodiment, an amplification circuit includes an amplifier having a gain and amplifying the input signal based on the gain, and a gain control signal generator controlling the gain based on an amplitude of the input signal. The gain obtained when the amplitude of the input signal is less than a first amplitude and when the amplitude of the input signal is greater than a second amplitude is lower than the gain obtained when the amplitude of the input signal is between the first and second amplitudes or when the amplitude of the input signal is one of the first and second amplitudes. The second amplitude is greater than or equal to the first amplitude.

Abstract: A printing device includes an image recording portion which records an image on a sheet, an image defect detection unit which detects the sheet on which image defects occur, a setting unit by which a sorting number of copies of the sheets is set, a first stamper unit which attaches ink to a leading end edge of the sheet on which the image defects occur, and a second stamper unit which is disposed so as to be arranged with the first stamper unit in a sheet width direction and attaches ink to the leading end edge of the sheet corresponding to the sorting number of copies.

Abstract: An optical interconnection device includes a light-emitting element, a light-receiving element, and an optical waveguide. Both the light-emitting element and the light-receiving element have a layered structure and are formed on a silicon substrate. At least a portion of the light-emitting element is embedded in an insulator. At least a portion of the light-receiving element is embedded in the insulator. The optical waveguide is formed over the insulator, and is optically coupled to the light-emitting element and the light-receiving element by distributed coupling.

Abstract: A conveyance device includes an image-forming drum (52) which fixes a rear surface (PB) of a sheet (P) and conveys the sheet along an arc-shaped path at a transfer position (312), a chain gripper which includes a gripper (64D) which is disposed on the downstream side of the image-forming drum in a conveyance direction and holds a leading end portion of the sheet, conveys the sheet along the arc-shaped path at the transfer position, and is disposed at a position at which a portion of the path leads to the image-forming drum side from the transfer position, and a blower unit (300) which is disposed on the chain gripper side from the transfer position, blows air from the chain gripper side to the image-forming drum side on the downstream side of the transfer position in the conveyance direction, and blows air toward the sheet conveyed by the chain gripper.