Abstract: The computer having a module board with semiconductor elements mounted on both sides thereof, a motherboard on which a plurality of units of the module board are mounted, and a rack cabinet on which a plurality of units of the motherboard are mounted includes a thermo-siphon that is thermally connected to the semiconductor elements mounted on one side of the module board, a metal plate that is thermally connected to the semiconductor elements mounted on one side of the module board, a thermally-conductive member that transfers the heat of the metal plate to the thermo-siphon in a situation where the heat of the semiconductor elements mounted on one side of the module board is transferred to the metal plate, and a pressing member that presses the thermo-siphon and the metal plate against the semiconductor elements mounted on the module board.

Abstract: A lead wire for a stationary induction apparatus includes a conductor, a covering insulating layer provided on an outer periphery of the conductor, and an insulating sheet provided on the covering insulating layer. The insulating sheet includes base paper having a prescribed width, and insulating spacers disposed to protrude from the base paper at prescribed spacings in a longitudinal direction of the base paper. The insulating sheet is spirally wound continuously from a straight portion to a curved portion such that the insulating spacers come into contact with the covering insulating layer.

Abstract: The present invention is to provide a drug for analysis of a water transport function of a membrane protein in a biological tissue, wherein the abundance of one or both of 17O water molecules or 18O water molecules in the drug is greater than their abundance in natural water. Furthermore, the present invention is to provide a method of analysis of a water transport function of a membrane protein in a biological tissue, a usage of the drug for analysis of a water transport function, and a method of diagnosis diagnosing pathologies caused by abnormalities of the water transport function.

Abstract: The invention relates to a cooling system and an electronic apparatus using the same, and particularly aims to use a thermosiphon as the cooling system and derives an optimum shape (inter-fin gap, fin height, and fin upper-end hole diameter) of a boiling heat transfer surface for different coolants. In a cooling system using a thermosiphon according to the invention, an optimum shape (inter-fin gap, fin height, and fin upper-end hole diameter) of a boiling heat transfer surface of a heat receiving jacket that forms the cooling system is identified based on a critical radius of a steam bubble produced in an overheated liquid and the diameter of an air bubble departing from the heat transfer surface for a variety of coolants.

Abstract: A disc drive apparatus comprises: a spindle motor 20 for hold a disc 2 and for rotate it; an optical head 7 for conducting either one of recording or reproducing of information onto/from the disc; a driver unit for moving the optical head in a radial direction of the disc; and a unit mechanism chassis 8 for supporting those thereon, fixedly, wherein the spindle motor is constructed with a rotational drive means made of a magnetic circuit, a rotor portion and a rotation shaft, which define a rotation body, and a spindle motor attachment plate to hold those thereon, and the spindle motor attachment plate has a semi-circular shaped plate configuration in a part thereof, nearly fitting to an outer diameter the rotor portion, in a direction where the optical head is provided, and has a step-like structure in thickness direction of the plate thereof, within a semi-circular shaped region with respect to a line connecting between corner portions on both ends of that semi-circular shape, and also bridging over that li

Abstract: An optical disc apparatus, presenting recording quality without degradation by an extreme temperature rise in an objective-lens drive mechanism in an optical pickup, includes a mechanical chassis on which a disc rotation mechanism, an optical pickup, and a transfer mechanism are mounted, a decorative plate that is a plate-shaped member located between the disc and the optical pickup and fixed on the mechanical chassis, a disc tray for loading and removing the disc, a circuit board for operation control, and an apparatus housing containing the components. A recess is formed in an indented shape in a portion of the mechanical chassis facing an outer peripheral region of the disc recording surface. An incline is formed in a position close to an opening of the disc tray for mounting the mechanical chassis and opposite the outer peripheral region of the disc recording surface, and slopes gently down to the recess.

Abstract: From a plurality of preset operation modes, an optimal mode is selected to let the supply air 206 attain a predetermined temperature and humidity. Upon adjusting the opening degrees of dampers 116-119, a cold water valve 156 and a humidifying water valve 154, the system measures the outside air 201, supply air 206 and return air 207 for temperature and humidity to see if a mode boundary is exceeded. If the boundary is exceeded, an assessment time is set. The humidity of the supply air 206 in the mode in effect before the boundary is exceeded is further predicted so as to determine whether the predicted value exceeds the upper limit of a tolerable humidity range or drops below the lower limit thereof.

Abstract: An optical pickup, having an optical pickup housing made of resin, for maintaining the heat radiation performance or capacity of a semiconductor laser, also an objective lens driving mechanism, and further a driver IC for the semiconductor laser, while keeping small-size and light-weight thereof, comprises a pickup housing, in which an optical part and a semiconductor laser are fixed; an objective lens, which is attached within the pickup housing; and an objective lens driving mechanism, which is configured to drive the objective lens, further comprising: a metal-made bottom cover, which is configured to cover a lower surface of the pickup housing and a side surface of an inner periphery of an optical disc, wherein the metal-made bottom cover and the semiconductor laser are thermally connected with each other.

Abstract: For the purpose of suppressing an increase of temperature of a laser element, in an optical disc drive, even in case when recording/reproducing at such a low double speed that almost no expectation can be made upon the effect of the convection cooling due to circulating flow of an air, which is generated by rotation of a disc, and in particular, the structure for fixing both end portions of a main shaft, which is engaged with a transfer mechanism for moving an optical pickup into the disc radial direction, through the optical pickup, between two (2) pieces of shafts for supporting the optical pickup, one of which forms the main shaft, onto connector portions to be engaged with the both end portions of the main shaft, upon a mechanical chassis, on which is mounted at least a disc rotation mechanism, etc.

Abstract: An optical disc drive includes a rotation device that rotates an optical disc in a clockwise direction when an upper surface of the optical disc is viewed, a disc mounting portion for mounting of the optical disc thereon has a recess portion, and an optical pickup which irradiates a laser beam on a lower recording surface of the optical disc. The disc mounting portion includes a first penetrating opening portion therethrough that extends from a center area of the recess portion to a periphery of the recess portion. The disc mounting portion further includes a single second penetrating opening portion therethrough being provided at a rear of the disc mounting portion and periphery at an upstream side of the clockwise rotating direction with respect to a center line of the first penetrating opening portion extending from a front to the rear of the disc mounting portion.

Abstract: An optical disc apparatus, comprising a tray 2, attached to be insertable within housings 9 and 10, and within the housings are included a disc motor 3, an optical pickup 4 and a moving mechanism thereof, and also a unit mechanism chassis 5 for moving the optical pickup thereon and a controller substrate 71 disposed below the unit mechanism chassis for controlling the optical pickup, and further, a wide-width flexible cable 8 for electrical connection between the controller substrate and the optical pickup, wherein the optical pickup mounts laser units 41, 42 and 43 including three (3) pieces of elements, each emitting a laser light different in the wavelength thereof, a penetrating portion 2b and a wall portion 2e are provided in a part of left bottom surface of the tray, while forming a cutoff portion 55 in a part of the chassis, thereby guiding the airflow generated accompanying with rotation of the optical disc onto the optical pickup, with certainty.

Abstract: An optical disc apparatus, presenting recording quality without degradation by an extreme temperature rise in an objective-lens drive mechanism in an optical pickup, includes a mechanical chassis on which a disc rotation mechanism, an optical pickup, and a transfer mechanism are mounted, a decorative plate that is a plate-shaped member located between the disc and the optical pickup and fixed on the mechanical chassis, a disc tray for loading and removing the disc, a circuit board for operation control, and an apparatus housing containing the components. A recess is formed in an indented shape in a portion of the mechanical chassis facing an outer peripheral region of the disc recording surface. An incline is formed in a position close to an opening of the disc tray for mounting the mechanical chassis and opposite the outer peripheral region of the disc recording surface, and slopes gently down to the recess.

Abstract: An optical pickup device 50 comprising a laser diode 1, a photo detector 2, a housing 3 having an optical system for guiding light from the laser diode 1 to an optical disk and guiding light reflected on the optical disk to the photo detector, a wiring 5 to supply current to the laser diode 1, and a metallic cover 9 provided outside of the housing 3, wherein the laser diode 1 is bonded to the housing 3 by adhesive, a metallic member 10 is mounted on the surface of the laser diode 1 by connecting thermally, and the metallic member 10 is thermally connected to the cover 9 by solder.

Abstract: An optical disc apparatus comprises the followings within housing thereof: an optical pickup, which is configured to conduct recording or reproducing of a disc, as an information recording medium; a rotation mechanism of said disc; a transfer mechanism, which is configured to move said optical pickup from an inner periphery of said disc up to an outer periphery thereof; a mechanical chassis, which is configured to mount said optical pickup, said disc rotation mechanism and said transfer mechanism thereon; a disc tray, which is configured to conduct storing and taking out of said disc; and a connector, which is configured to electrically connect between a circuit board for conducting driving control of said rotation mechanism and an external electronic apparatus, wherein a projection portion is provided on a reverse surface of said disc tray, at a portion facing to said connector at a position when said disc tray is stored, to be inserted into a gap between periphery of said connector and said housing, and the

Abstract: The present invention is to provide a drug for analysis of a water transport function of a membrane protein in a biological tissue, wherein the abundance of one or both of 17O water molecules or 18O water molecules in the drug is greater than their abundance in natural water. Furthermore, the present invention is to provide a method of analysis of a water transport function of a membrane protein in a biological tissue, a usage of the drug for analysis of a water transport function, and a method of diagnosis diagnosing pathologies caused by abnormalities of the water transport function.

Abstract: A disc drive apparatus comprises: a spindle motor 20 for hold a disc 2 and for rotate it; an optical head 7 for conducting either one of recording or reproducing of information onto/from the disc; a driver unit for moving the optical head in a radial direction of the disc; and a unit mechanism chassis 8 for supporting those thereon, fixedly, wherein the spindle motor is constructed with a rotational drive means made of a magnetic circuit, a rotor portion and a rotation shaft, which define a rotation body, and a spindle motor attachment plate to hold those thereon, and the spindle motor attachment plate has a semi-circular shaped plate configuration in a part thereof, nearly fitting to an outer diameter the rotor portion, in a direction where the optical head is provided, and has a step-like structure in thickness direction of the plate thereof, within a semi-circular shaped region with respect to a line connecting between corner portions on both ends of that semi-circular shape, and also bridging over that li

Abstract: An inkjet recording medium obtained by forming a coating layer containing a pigment and a binder on the surface of a base material and coating layer is subsequently pressed onto a heated mirror finished surface to dry to form an ink absorbing layer through a cast coating method, wherein pigment contains a colloidal silica that has a primary particle diameter of from 10 nm to 100 nm while the ratio of the secondary particle diameter to primary particle diameter is from 1.5 to 3.0.

Abstract: Increases in the data transfer rates of optical disc drives have resulted in problems such as increases in optical disc vibrations due to higher rotation speeds or increases in heat generation due to increases in the output of motors for rotating the optical discs and in the output of laser diodes. To solve such problems, an optical pickup is provided with an air duct therein, and a space that is formed between the optical disc and a top case of a casing and that has negative pressure during rotation of the optical disc is connected to the air duct in the optical pickup via a tube, at least part of the tube being deformable. The optical pickup is cooled by the air flow through the air duct induced by pressure difference.

Abstract: An optical pickup, having an optical pickup housing made of resin, for maintaining the heat radiation performance or capacity of a semiconductor laser, also an objective lens driving mechanism, and further a driver IC for the semiconductor laser, while keeping small-size and light-weight thereof, comprises a pickup housing, in which an optical part and a semiconductor laser are fixed; an objective lens, which is attached within the pickup housing; and an objective lens driving mechanism, which is configured to drive the objective lens, further comprising: a metal-made bottom cover, which is configured to cover a lower surface of the pickup housing and a side surface of an inner periphery of an optical disc, wherein the metal-made bottom cover and the semiconductor laser are thermally connected with each other.

Abstract: An optical disc drive comprises: a disc tray 3, which is configured to be used for loading/ejecting of a disc 2 as information recording medium; an optical pickup member 7, which has a laser element 8a for oscillating a laser light therefrom, to be irradiated on the disc 2; a disc rotating mechanism, which is configured to rotate the disc 2; a transferring mechanism, which is configured to move the optical pickup member 7 between an inner periphery portion and an outer periphery portion of the disc 2; and a decorative laminated board 10, which is provided between the disc 2 loaded and a controller portion mounted, wherein the decorative laminated board 10 has a wind guidance opening 21, for guiding an air into an area facing to the laser element 8a of the optical pickup member 7 when the optical pickup member has moved to the outermost periphery portion of the disc 2 to be rotated, and the disc tray 3 has a wind guidance wall 22 on a surface thereof, facing to the optical pickup member 7 having moved to an ou