Abstract: A display device includes a frame that includes a front portion, temple portions, and a pad portion, and is mounted on head of an observer, and an image display device attached to the frame. The image display device includes an image forming device, and an optical device on which light emitted from the image forming device is incident and from which the light is emitted toward the observer. One end portion of the optical device is fixed to a temple portion side of the front portion. Other end portion of the optical device is on a pad portion side of the front portion. A light shielding member that prevents external light from being incident on the other end portion of the optical device from above the other end portion of the optical device is attached to the pad portion side of the front portion.

Abstract: When reversing a direction in which an angle is adjusted by a first adjustment section and reversing a direction in which a posture is adjusted by a second adjustment section, a control section of a seat provides, before a timing at which a driving direction of a second driving section is reversed, a stop period for stopping the second adjustment section from adjusting the posture, and the control section causes the first adjustment section to carry out a preparation operation in advance during the stop period.

Abstract: A rocking device includes: a seat which supports a body of a user; a motor which rotates a rotation shaft in a first rotation direction and in a second rotation direction that is a rotation direction opposite to the first rotation direction, and thereby supplies motive power for rocking the seat via a gear attached to the rotation shaft; and a controller which controls rocking of the seat via the motor. The seat is configured to make a first motion of moving in a first movement direction, in accordance with rotation of the rotation shaft in the first rotation direction, and make a second motion of moving in a second movement direction, in accordance with rotation of the rotation shaft in the second rotation direction. The controller is configured to control rocking of the seat such that a prescribed stopped period is provided between the first motion and second motion.

Abstract: A sealing ring is provided for use, e.g., in boring machines or wind turbines, among other intended uses. The sealing ring includes an axial leg and a sealing leg with a sealing lip. The sealing leg is connected to a first end face of the axial leg by means of a joint. The sealing ring further includes a tensioning element for stabilizing the sealing leg in the radial direction. The tensioning element is annular and formed by a spring connected to the sealing leg.

Abstract: A sealing ring includes: a first axial leg; and a sealing leg with a sealing lip. When viewed in cross section, the sealing ring is in a shape of a seven. The sealing leg is connected to a first end face of the first axial leg by a first joint. The sealing leg has, on a side facing axially toward the first end face, a dirt lip with at least one sealing edge and a radially internal first boundary surface and a radially external second boundary surface.

Abstract: A sealing ring is provided for use, e.g., in boring machines or wind turbines, among other intended uses. The sealing ring includes an axial leg and a sealing leg with a sealing lip. The sealing leg is connected to a first end face of the axial leg by means of a joint. The sealing ring further includes a tensioning element for stabilizing the sealing leg in the radial direction. The tensioning element is annular and formed by a spring connected to the sealing leg.

Abstract: A sealing ring includes: a first axial leg; and a sealing leg with a sealing lip. When viewed in cross section, the sealing ring is in a shape of a seven. The sealing leg is connected to a first end face of the first axial leg by a first joint. The sealing leg has, on a side facing axially toward the first end face, a dirt lip with at least one sealing edge and a radially internal first boundary surface and a radially external second boundary surface.

Abstract: The object of the present invention is achieved by a surface treatment agent to be used for surface treatment of an aluminum alloy material for forming cans, which includes zirconium, aluminum, a nitrate radical, and fluorine, wherein the pH ranges from 2.0 to 4.0, the molar mass concentration of the zirconium ranges from 3.2 mmol/kg to 33.0 mmol/kg, the molar mass concentration of the aluminum ranges from 14.8 mmol/kg to 74.1 mmol/kg, the molar mass concentration of the nitrate radical ranges from 16.1 mmol/kg to 161.4 mmol/kg, the molar mass concentration of the fluorine ranges from 52.6 mmol/kg to 526.3 mmol/kg, (F?6Zr)/Al?2.5 is satisfied (wherein, F represents the molar mass concentration of the fluorine, Zr represents the molar mass concentration of the zirconium, and Al represents the molar mass concentration of the aluminum, and substantially no phosphorus compound is contained.

Abstract: A vehicle wiper comprises a retainer that is formed in an elongated shape open at the lower side facing toward a windshield, and that is provided so as to be capable of swinging about a shaft axis of a pivot shaft that is swung to-and-fro; a first nozzle member that is housed inside the retainer, and that is capable of ejecting washer fluid from an ejection portion; and 1 a retainer cover member that closes off an opening of the retainer, and that is formed with a window through which the ejection portion of the first nozzle member is externally exposed.

Abstract: A vehicle wiper comprises a retainer that is formed in an elongated shape open at the lower side facing toward a windshield, and that is provided so as to be capable of swinging about a shaft axis of a pivot shaft that is swung to-and-fro; a first nozzle member that is housed inside the retainer, and that is capable of ejecting washer fluid from an ejection portion; and 1 a retainer cover member that closes off an opening of the retainer, and that is formed with a window through which the ejection portion of the first nozzle member is externally exposed.

Abstract: A semiconductor device, including a silicon substrate having a first major surface and a second major surface, a front surface device structure formed in a region of the first major surface, and a rear electrode formed in a region of the second major surface. The rear electrode includes, as a first layer thereof, an aluminum silicon film that is formed by evaporating or sputtering aluminum-silicon onto the second major surface, the aluminum silicon film having a silicon concentration of at least 2 percent by weight and a thickness of less than 0.3 ?m.

Abstract: A method of producing a semiconductor device that has a silicon substrate including a first major surface and a second major surface thereof, a front surface device structure being formed in a region of the first major surface, the method has a step of forming a rear electrode in a region of the second major surface, which includes evaporating or sputtering aluminum-silicon onto the second major surface to form an aluminum silicon film as a first layer of the rear electrode, the aluminum silicon film having a silicon concentration of at least 2 percent by weight when the thickness thereof is less than 0.3 ?m.

Abstract: A semiconductor device includes a silicon substrate having a first major surface and a second major surface opposite to the first major surface, a drift layer and a collector layer formed in sequence in the silicon substrate from the first major surface, and an aluminum silicon film formed on the second major surface. The drift layer is of a first conductivity type, and is surrounded by a semiconductor layer of a second conductivity type including the collector layer.