Abstract: A flexible boot for a constant velocity universal joint includes: attachment portions to a mating member at both ends; and a bent portion provided between the attachment portions and absorbing deformation caused by operation of a constant velocity universal joint. The flexible boot is made of a rubber material obtained by blending 50 to 80 parts by weight of HNBR having an acrylonitrile content of 15 to 21 wt % and 20 to 50 parts by weight of EPDM, the rubber material having an elastic recovery rate of 18% or more at ?40° C. in a TR test.

Abstract: A focus adjustment method for a camera module equipped with an optical system, an image sensor, and a camera substrate to which said image sensor is mounted. The focus adjustment method includes a measurement step of measuring an installation position and an installation angle of the image sensor on the camera substrate, an adjustment step of adjusting a position and an angle of the camera substrate relative to the optical system, and an assembly step of assembling the camera substrate to the optical system after adjusting the position and angle of the camera substrate. The adjustment step includes adjusting the position and angle of the camera substrate based on the installation position and angle of the image sensor as measured so that a position and an angle of the image sensor relative to the optical system become a set position and a set angle predefined according to the optical system.

Abstract: An optical waveguide alignment method includes a step of covering an end portion of an optical fiber, an end portion of a PLC, and a microlens with an adhesive before curing in a state in which at least one microlens is disposed between incidence and emission end faces of end portions of the optical fiber and the PLC, a step of causing light for alignment to be incident on at least one of the optical fiber or the PLC so that light enters a portion covered with the adhesive between the optical fiber and the PLC, and a step of curing the adhesive after the microlens moves onto an optical path between the optical fiber and the PLC due to radiation pressure of light. The optical fiber and the PLC are optically connected via the adhesive and the microlens, and the optical fiber, the PLC, and the microlens are mechanically connected by the adhesive.

Abstract: An image forming apparatus includes a developer container to and from which a replenishment container is attachable and detachable, the developer container including an accommodating portion, and a supporting portion, wherein the developer container includes a projection portion that is provided at one end portion thereof in the rotation axis direction of the developer bearing member and projects toward the supporting portion more than a center portion of the developer container in a crossing direction crossing the rotation axis direction, the projection portion communicates with the accommodating portion and includes, at a distal end portion thereof, an attachment portion configured such that the replenishment container is attachable thereto in a state of being exposed to the outside of the apparatus, and a replenishment port for replenishing the accommodating portion with developer from the replenishment container is defined in the attachment portion.

Abstract: A light emitting element according to the present disclosure includes a first light reflecting layer 41, a laminated structure 20, and a second light reflecting layer 42 laminated to each other. The laminated structure 20 includes a first compound semiconductor layer 21, a light emitting layer 23, and a second compound semiconductor layer 22 laminated to each other from a side of the first light reflecting layer. Light from the laminated structure 20 is emitted to an outside via the first light reflecting layer 41 or the second light reflecting layer 42. The first light reflecting layer 41 has a structure in which at least two types of thin films 41A and 41B are alternately laminated to each other in plural numbers. A film thickness modulating layer 80 is provided between the laminated structure 20 and the first light reflecting layer 41.

Abstract: Provided are a beam combiner that can form a fine and clear interference pattern, a method of forming an alignment film in which a fine and clear alignment pattern can be obtained, and a method of manufacturing an optical element including a fine and clear liquid crystal alignment pattern. The beam combiner element includes: a beam combiner element that emits light where right/left circularly polarized light components are combined; a polarization separating element that separates incidence light into two right or left circularly polarized light components; and a light control element that focuses or diffuses light and is provided on at least one optical path of circularly polarized light incident into the beam combiner element, in which an absolute value of an ellipticity of circularly polarized light emitted from the beam combiner element is 0.8 or more.

Abstract: A vibration generating device includes a housing; a diaphragm supported by the housing, and configured to generate sound by vibrating in a first direction; and a vibration providing part attached to the housing, and configured to vibrate the housing. The vibration providing part vibrates the housing in the first direction at a first frequency, and vibrates the housing in a second direction at a second frequency lower than the first frequency.

Abstract: A power distribution apparatus for an electric vehicle includes a power distribution mechanism configured to distribute power output from an electric motor to front and rear wheels, and a controller configured to control the power distribution mechanism. The power distribution mechanism includes a first clutch configured to fix a power distribution ratio during straight traveling to a first distribution ratio at which first power distributed to the rear wheels and second power distributed to the front wheels are nearly same, and a second clutch configured to fix the power distribution ratio during straight traveling to a second distribution ratio at which the first power is larger than the second power. The controller is configured set the second clutch to an engaged state and sets the first clutch to a half-engaged state during regenerative braking.

Abstract: A toner container includes a storage portion configured to store toner and a communicating member including a receiving port, a discharge port, and a passage. The passage includes a first inclined surface and a second inclined surface connecting the first inclined surface and the discharge port to each other. When viewed in a third direction perpendicularly intersecting with both of a first direction and a second direction, the first inclined surface is inclined with respect to the second direction such that a more downstream portion of the first inclined surface in the first direction is closer to the discharge port in the second direction, and the second inclined surface is inclined with respect to the second direction such that a more downstream portion of the second inclined surface in the first direction is closer to the discharge port in the second direction.

Abstract: A signal processing device includes circuitry configured to receive, together with a voice recognition result of an utterance section of an utterance input to each of a plurality of microphones, an input of time information of a start time and an end time of each utterance and information regarding an appearance time of each word in the voice recognition result; detect whether there is an overlap in time of utterance sections in each pair of voice recognition results by combining voice recognition results of two utterances from utterance sections of utterances input to each of the microphones; calculate a similarity of voice recognition result for each pair having an overlap in time of utterance sections; compare the similarity with a predetermined threshold; and reject an utterance having a shorter length of the voice recognition result as a wraparound utterance for a pair in which the similarity exceeds the threshold.

Abstract: The aqueous secondary battery of the present disclosure comprises: a positive electrode active material layer, an aqueous electrolyte, and a negative electrode active material layer, wherein the aqueous electrolyte contains an aqueous solvent and potassium polyphosphate which has two or more elemental phosphorus, and any one of potassium ion, proton, hydroxide ion, and polyphosphoric anion is a carrier ion, a positive electrode active material contained in the positive electrode active material layer has a monoclinic crystal structure represented by space group C2/m, is represented by composition formula MnO2·AxBy(H2O)z, and the A, B, and H2O are present in a space interposed between layers composed of Mn—O octahedrons, A is an alkali metal or alkali rare earth metal, B is an anion, 0<x<1, 0<y<1, and 0<z<2.

Abstract: A nickel-metal hydride battery of the present disclosure comprises: a positive electrode active material layer, a negative electrode active material layer, and an aqueous electrolyte, wherein a negative electrode active material contained in the negative electrode active material layer is a hydrogen storage alloy having an AB2 main phase, the A site includes Ti, Zr, or a combination thereof, and the B site includes Mn, Cr, Ni, Fe, or a combination thereof.

Abstract: Provide are an optical element that can improve a utilization efficiency of light while increasing an optical path length, an image display unit, and a head-mounted display. The optical element includes, in the following order: a first absorptive linearly polarizing plate; a first reflective linearly polarizing plate; a first retardation plate; a partially reflecting mirror; a second retardation plate; and a second reflective linearly polarizing plate, in which a turning direction of circularly polarized light that is reflected from the first reflective linearly polarizing plate in a case where light transmits through the first retardation plate and is incident into the first reflective linearly polarizing plate is opposite to a turning direction of circularly polarized light that is reflected from the second reflective linearly polarizing plate in a case where light transmits through the second retardation plate and is incident into the second reflective linearly polarizing plate.

Abstract: Provided are a liquid crystal diffraction element, an image display apparatus, and a head mounted display where occurrence of a ghost in a head mounted display such as VR glasses can be suppressed.

Abstract: The present invention provides an optical element in which the occurrence of sidelobe is suppressed and a reflectivity is high, an image display apparatus, a head-mounted display, a sensing apparatus, and an eye tracking apparatus.

Abstract: Provided are a hyperspectral sensor and a hyperspectral camera in which influence of external information such as a reflecting material is reduced such that the spectral data accuracy of a subject to be acquired can be improved. In the hyperspectral sensor in which light from a subject is split into light components in a plurality of wavelength ranges by a spectral optical element and each of the light components in the wavelength ranges is received by a sensor array consisting of a plurality of photodetection elements to acquire spectral data in which spectral information of the subject is associated with each of the photodetection elements, a polarization diffraction element that emits polarized light is used as the spectral optical element.

Abstract: A semiconductor device including: a semiconductor substrate; a temperature sensing unit provided on a front surface of the semiconductor substrate; an anode pad and a cathode pad electrically connected with the temperature sensing unit; a front surface electrode being set to a predetermined reference potential; and a bidirectional diode unit electrically connected in a serial bidirectional way between the cathode pad and the front surface electrode is provided. The output comparison diode unit may be arranged between the anode pad and the cathode pad. The temperature sensing unit may include a temperature sensing diode, and the output comparison diode unit may include a diode connected in inverse parallel to the temperature sensing diode.

Abstract: A semiconductor memory device includes a conducting layer and an insulating layer that are disposed above a semiconductor substrate, a plurality of pillars that extend in a direction which crosses a surface of the semiconductor substrate, and a plate that is disposed between the plurality of pillars and extends in the same direction as the pillars. A surface of the plate, which faces the pillars, has convex portions and non-convex portions.

Abstract: The electric actuator comprises an electric brushless motor having a rotor and a stator, and the control board has a plurality of electric components and controls operation of the brushless motor. The control board comprises a main board and a small board that has a smaller planar shape than the main board and that is connected to the main board via a connecting member. The small board has one or more electric components, faces the rotor, and is arranged at a position closer to the rotor than is the main board in the rotation axis direction of the rotor.

Abstract: Provided is an imprint method of performing an imprint process including a contacting step of bringing a mold into contact with an imprint material on a substrate, a curing step of curing the imprint material, and a separating step of separating the mold from the cured imprint material. The method includes acquiring global alignment information, performing a pre-alignment measurement including moving, based on the acquired global alignment information, a second shot region to a measurement position at which a measurement device performs measurement, and measuring a first relative positional shift between the second shot region and the mold using the measurement device, and moving, based on the global alignment information and the measured first relative positional shift, a first shot region to an imprint position at which the imprint process is performed, and starting the contacting step.