Abstract: A cooling structure of a battery pack includes an assembled battery including stacked battery modules, an intake passage, and a discharge passage. Ventilation passages extend between adjacent ones of the battery modules. The intake passage extends in a stacking direction of the battery modules and includes an intake port to draw in cooling air from a blower. The discharge passage extends in the stacking direction and includes a discharge port at a first end to discharge the cooling air, which flows through the ventilation passages, to the outside. The first end of the discharge passage and the intake port of the intake passage are located at the same side. The discharge passage is defined by a wall that includes a communication portion disposed at a position toward a second end of the discharge passage opposite to the first end to partially discharge air from the exhaust passage.

Abstract: A cooling structure of a battery pack includes an assembled battery including stacked battery modules, an intake passage, and a discharge passage. Ventilation passages extend between adjacent ones of the battery modules. The intake passage extends in a stacking direction of the battery modules and includes an intake port to draw in cooling air from a blower. The discharge passage extends in the stacking direction and includes a discharge port at a first end to discharge the cooling air, which flows through the ventilation passages, to the outside. The first end of the discharge passage and the intake port of the intake passage are located at the same side. The discharge passage is defined by a wall that includes a communication portion disposed at a position toward a second end of the discharge passage opposite to the first end to partially discharge air from the exhaust passage.

Abstract: An optical integrated unit according to the present invention is an optical integrated unit, including: a semiconductor laser acting as a light source; at least one light-receiving element; a light-separating section for separating light emitted by the semiconductor laser from light reflected by an optical disc and for reflecting the light reflected by the optical disc so that the light reflected by the optical disc is directed to the light-receiving element; and a support substrate, wherein a second support substrate has a concave shape, the light-separating section is constituted of at least three prisms, the prisms positioned at both ends of the light-separating section are respectively attached to two protruding sections of the concave shape of the second support substrate, and the light-receiving element is attached to the light-separating section via a cover glass.

Abstract: An operation arm built on one side or a plurality of sides of a hand cart provided with a wheel, includes an operation section touched by an operator, and a support extending from the operation section to the hand cart, and supporting the operation section against the hand cart, and also includes a rear inclined portion inclined from an upper end of the support toward the rear side at a predetermined angle, and a grip continuous with the rear inclined portion, extending in directions crossing the forward direction and the backward direction, an extension of the grip inclined to the front side with respect to the support and formed into a circular arc shape. By so constituting, a manual pushing force is efficiently transmitted to the hand cart and an operator can operate the operation arm in a comfortable posture.

Abstract: An optical integrated unit according to the present invention is an optical integrated unit, including: a semiconductor laser acting as a light source; at least one light-receiving element; a light-separating section for separating light emitted by the semiconductor laser from light reflected by an optical disc and for reflecting the light reflected by the optical disc so that the light reflected by the optical disc is directed to the light-receiving element; and a support substrate, wherein a second support substrate has a concave shape, the light-separating section is constituted of at least three prisms, the prisms positioned at both ends of the light-separating section are respectively attached to two protruding sections of the concave shape of the second support substrate, and the light-receiving element is attached to the light-separating section via a cover glass.

Abstract: An operation arm built on one side or a plurality of sides of a hand cart provided with a wheel, includes an operation section touched by an operator, and a support extending from the operation section to the hand cart, and supporting the operation section against the hand cart, and also includes a rear inclined portion inclined from an upper end of the support toward the rear side at a predetermined angle, and a grip continuous with the rear inclined portion, extending in directions crossing the forward direction and the backward direction, an extension of the grip inclined to the front side with respect to the support and formed into a circular arc shape. By so constituting, a manual pushing force is efficiently transmitted to the hand cart and an operator can operate the operation arm in a comfortable posture.

Abstract: An object of the invention is to provide an optical pickup apparatus that succeeded in achieving easy wiring layout and slenderization, and an easy adjustment method therefor. In the optical pickup apparatus, the position of the working light with respect to the recording medium is adjusted by positionally adjusting at least one of the optical components. Particularly by forming the opening portion in an area of the first wiring board which is located in proximity to the optical component, the wiring region of the first wiring board can be secured without covering the optical component completely.

Abstract: A communication system includes a CMTS provided at a CATV station, an advertisement server computer, and a modem provided at a user's residence. The modem includes a circuit receiving data transmitted from the Internet and advertisement information transmitted from the advertisement server computer, a circuit converting the received data into data for transmission to a personal computer, and a circuit displaying the received advertisement information. The advertisement server computer includes a circuit calculating an advertisement fee to be collected from an advertiser as a value of having a user of the modem viewing advertisement information, and a circuit calculating a reduced communication fee by appropriating the advertisement fee for the communication fee to be paid by the user to the CATV service provider.