Abstract: A semiconductor device for a Doherty amplifier includes a main amplifier including a first field effect transistor, and includes a peak amplifier including a second field effect transistor. A first drain conductance of the first field effect transistor when applying a gate voltage obtained by adding a predetermined voltage to a pinch-off voltage and a predetermined drain voltage is larger than a second drain conductance of the second field effect transistor when applying both a gate voltage and the predetermined drain voltage, such that when measuring the first drain conductance, a drain current having a same value as a drain current flowing through the first field effect transistor flows through the second field effect transistor.

Abstract: A photosensitive member unit includes a photosensitive member, a transfer roller, a mounting portion capable of mounting a development unit including a development roller, a first gear and a second gear each provided at one end of the photosensitive member in an axial direction of the photosensitive member, and a third gear provided at one end of the transfer roller in an axial direction of the photosensitive member and configured to engage with the second gear. The first gear, the second gear, and the third gear are helical gears. A direction in which helical teeth of the first gear are inclined is opposite to a direction in which helical teeth of the second gear are inclined, and the direction in which the helical teeth of the first gear are inclined matches a direction in which helical teeth of the third gear are inclined.

Abstract: The present disclosure relates to a measurement pattern for measuring a high frequency characteristic of a first element including a first input electrode, a first output electrode, and a first reference electrode. The measurement pattern includes a second element including a second input electrode having a planar shape corresponding to a planar shape of the first input electrode, a second output electrode having a planar shape corresponding to a planar shape of the first output electrode, and a second reference electrode overlapping the second input electrode and the second output electrode, an input pad connected to the second input electrode, an output pad connected to the second output electrode, and a reference pad connected to the second reference electrode, provided from the input pad to the output pad when viewed from a first direction, and having a planar shape linearly symmetric with respect to a virtual straight line.

Abstract: A Doherty amplifier includes a first amplifier that includes first output fingers and a first output electrode connected to the first output fingers, a second amplifier that includes second output fingers and a second output electrode connected to the second output fingers, a first bonding wire connected between a first region in the first output electrode and a second region in the second output electrode, a second bonding wire connected between a third region in the first output electrode and a fourth region in the second output electrode, and at least one of a first capacitor connected in series with the first bonding wire, and a second capacitor connected in parallel with the second bonding wire, wherein the first and the third regions are regions to which the first output fingers are connected, and the second and the fourth regions are regions to which second output fingers are connected.

Abstract: A photosensitive member cartridge detachably mountable to a main assembly of an image forming apparatus for forming an image, includes a frame; a photosensitive drum on which and which is provided in the frame; a transfer member for transferring an image formed on the drum onto the sheet; a mounting portion for detachably mounting a developing cartridge including a developer carrying member onto the drum and a memory for storing information; a first electrical contact provided on the frame and electrically connectable with a main assembly electrical contact provided in the main assembly when the cartridge is mounted to the main assembly; and a second electrical contact provided on the frame for electrically connecting the memory and the first electrical contact portion with each other when the developing cartridge is mounted to the mounting portion.

Abstract: A cartridge includes a drum unit and a developing unit. The developing unit is mountable in a space between first and second walls of the drum unit. While the developing unit is being mounted to the drum unit, in a posture in which the drum unit is mounted in the main assembly, the handle portion is moved downward in a direction of gravity and the developing unit is rotated so that the developing roller is moved closer to the photosensitive drum. In a state in which the developing unit is mounted to the drum unit, an urged portion of the developing unit is urged by an urging portion of the drum unit so that the developing roller and the photosensitive drum are in contact with each other.

Abstract: A photosensitive member unit includes a photosensitive member, a transfer roller, a mounting portion capable of mounting a development unit including a development roller, a first gear and a second gear each provided at one end of the photosensitive member in an axial direction of the photosensitive member, and a third gear provided at one end of the transfer roller in an axial direction of the photosensitive member and configured to engage with the second gear. The first gear, the second gear, and the third gear are helical gears. A direction in which helical teeth of the first gear are inclined is opposite to a direction in which helical teeth of the second gear are inclined, and the direction in which the helical teeth of the first gear are inclined matches a direction in which helical teeth of the third gear are inclined.

Abstract: To improve the measurement accuracy. The present technology provides a light receiving device (1) including: a light transmitting part (11) that transmits emitted light emitted from a light emitting device; a light receiver (12) that receives incident light from outside; and a semiconductor substrate (13), in which a non-sensitive region (14) that does not sense light is formed between the light transmitting part (11) and the light receiver (12). Moreover, the present technology provides a manufacturing method for a light receiving device (1) including: stacking a light receiver (12) on one surface of a semiconductor substrate (13); etching a side on which the light receiver (12) is disposed into a ring shape; fixing the semiconductor substrate (13) to a permanent fixing substrate; etching an outer periphery and substantially a center portion of the light receiver (12); and removing the semiconductor substrate (13) from the permanent fixing substrate by laser lift off.

Abstract: An image forming apparatus comprising a main assembly and first and second units that movable relative to the main assembly. The first unit includes a first rotation member, a first shutter, and a first support member rotatably supporting the first shutter. The second unit includes a second rotation member, a second shutter, and a second support member rotatably supporting the second shutter. A rotation radius of the first shutter is smaller than a rotation radius of the second shutter.

Abstract: A light-emitting device according to an embodiment of the present disclosure includes: a pixel circuit including a light-emitting part; and a gradation controller that performs gradation control. The pixel circuit includes a light emission time controller that controls a light emission time of the light-emitting part, and an amplitude modulator that includes an output transistor coupled in series to the light-emitting part. The gradation controller performs the gradation control by performing, via the light emission time controller, on/off control on the output transistor of the amplitude modulator, and modulation control on the amplitude modulator.

Abstract: The present technology relates to a light source apparatus that makes it possible to provide a widely applicable light source apparatus. A light source apparatus includes a transmissive board that transmits light emitted by a light-emitting element, a circuit board that drives the light-emitting element and is joined to the transmissive board, and a light-emitting board that has the light-emitting element and is connected to the circuit board via a first bump. Further, in the light source apparatus, the circuit board and an organic board are configured to be connected by sandwiching the light-emitting board via second bumps. The present technology can be applied to a light source apparatus that emits light.

Abstract: An amplifier circuit includes a first FET including first source, first gate and first drain electrodes, and a first field plate having a part thereof provided above a semiconductive layer between the first gate and the first drain electrodes, and a second FET including second source, second gate and second drain electrodes, and a second field plate having a part thereof provided above the semiconductor layer between the second gate and the second drain electrodes, wherein a first distance between an end closer to the first drain electrode in a surface of the first gate electrode and an end closer to the first drain electrode in the first field plate is shorter than a second distance between an end closer to the second drain electrode in a surface of the second gate electrode and an end closer to the second drain electrode in the second field plate.

Abstract: A semiconductor device includes a substrate, a first FET (Field Effect Transistor) configured to include a first source electrode electrically connected to a first reference potential, a first gate electrode electrically connected to an input terminal, and a first drain electrode, a second FET configured to include a second source electrode, a second gate electrode, and a second drain electrode electrically connected to an output terminal, the second FET being arranged in a first direction with respect to the first FET, a first wiring configured to electrically connect the first drain electrode to the second source electrode, and s capacitor configured to be provided between the first FET and the second FET, and have a first end electrically connected to the second gate electrode and a second end electrically connected to a second reference potential.

Abstract: A photosensitive member unit includes a photosensitive member, a transfer roller, a mounting portion capable of mounting a development unit including a development roller, a first gear and a second gear each provided at one end of the photosensitive member in an axial direction of the photosensitive member, and a third gear provided at one end of the transfer roller in an axial direction of the photosensitive member and configured to engage with the second gear. The first gear, the second gear, and the third gear are helical gears. A direction in which helical teeth of the first gear are inclined is opposite to a direction in which helical teeth of the second gear are inclined, and the direction in which the helical teeth of the first gear are inclined matches a direction in which helical teeth of the third gear are inclined.

Abstract: An image forming apparatus includes a first unit movable to a first inside position of a main assembly and a second unit movable to a second inside position of the main assembly. The first unit includes a mounting portion for detachably mounting the second unit, and a contacting and spacing member movable between a first position for permitting a developing member of the second unit to contact an image bearing member of the first unit and a second position for spacing the developing member from the image bearing member.

Abstract: The present disclosure relates to a ranging device and a ranging module that allow a light emitting element and a light receiving element to be integrated with a simple structure. A light emitting substrate having a light emitting element is connected to a circuit substrate through first bumps, and a light receiving substrate having a single light emitting element or light emitting elements that are two-dimensionally disposed is connected to the circuit substrate through second bumps. The optical axis of a lens, the optical axis of the light emitting element, and the center axis of the light receiving element are disposed on substantially the same axis. The present technique can be applied to a ranging device that carries out ranging, and so forth.

Abstract: A mounting substrate according to an embodiment of the present technology includes: a wiring substrate (30); a plurality of light-emitting elements (12) arranged in a matrix on the wiring substrate; and a plurality of drive ICs (13) that are arranged in a matrix on the wiring substrate, and control light emission of the light-emitting elements. The light-emitting elements and the drive ICs are mounted on a same surface. The wiring substrate includes a plurality of first wiring lines (16) on a mounting surface where the light-emitting elements and the dive ICs are mounted. The first wiring lines electrically couple the light-emitting elements to the drive ICs.

Abstract: A photosensitive member cartridge detachably mountable to a main assembly of an image forming apparatus for forming an image, includes a frame; a photosensitive drum on which and which is provided in the frame; a transfer member for transferring an image formed on the drum onto the sheet; a mounting portion for detachably mounting a developing cartridge including a developer carrying member onto the drum and a memory for storing information; a first electrical contact provided on the frame and electrically connectable with a main assembly electrical contact provided in the main assembly when the cartridge is mounted to the main assembly; and a second electrical contact provided on the frame for electrically connecting the memory and the first electrical contact portion with each other when the developing cartridge is mounted to the mounting portion.

Abstract: A semiconductor device includes a substrate, a metal layer provided under the substrate, a plurality of source electrodes provided on the substrate and including first source electrodes and second source electrodes, one or a plurality of first via wirings that overlap with one of the first source electrodes closest to ends of the source electrodes, penetrate through the substrate, and electrically connect the metal layer and the first source electrodes, and one or a plurality of second via wirings that overlap with one of the second source electrodes second closest to the ends of the source electrodes, penetrate through the substrate, and electrically connect the metal layer and the second source electrodes, wherein a first inductance between the one of the first source electrodes and the metal layer is larger than a second inductance between the one of the second source electrodes and the metal layer.

Abstract: The present disclosure relates to a measurement pattern for measuring a high frequency characteristic of a first element including a first input electrode, a first output electrode, and a first reference electrode. The measurement pattern includes a second element including a second input electrode having a planar shape corresponding to a planar shape of the first input electrode, a second output electrode having a planar shape corresponding to a planar shape of the first output electrode, and a second reference electrode overlapping the second input electrode and the second output electrode, an input pad connected to the second input electrode, an output pad connected to the second output electrode, and a reference pad connected to the second reference electrode, provided from the input pad to the output pad when viewed from a first direction, and having a planar shape linearly symmetric with respect to a virtual straight line.