Abstract: An organic light-emitting device containing both a compound represented by the following general formula (1) and a compound represented by the following general formula (2) has a high light emission efficiency. The rings a to c each are a benzene ring that can be optionally condensed, R1 and R2 each represent a substituted or unsubstituted aryl group, etc., four of R31 to R35 each are a substituted or unsubstituted carbazol-9-yl group, but all of these four are not the same, and the remaining one is a hydrogen atom, a cyano group, etc.

Abstract: A heat sink with fins comprising a pillar-shaped base member, and a plurality of fins which are inserted into a plurality of grooves formed in the side face of said base member and then both sides of each of said grooves are plastic-deformed to joint said fins in said base member.

Abstract: A Peltier module comprising: thermoelectric elements in which plural p-type and n-type thermoelectric elements are alternately arranged, metal electrodes placed in both ends of the thermoelectric elements in order to connect the thermoelectric elements in series, and metal substrates on at least a part of which surfaces an insulating thin film is formed, the metal substrates being oppositely placed so as to be connected to the metal electrodes and sandwich the metal electrodes and the thermoelectric elements.

Abstract: There is provided a heat sink comprising a base plate provided with a plurality grooves and concave portions, each of which has a substantially trapezoidal cross section having a flat bottom face and inclined side faces and is formed into a tapered shape, formed between the adjacent grooves by plastic deformation; and a plurality of thin-sheet fins which are inserted in the grooves and are crimped from both sides by the inclined side faces formed by the plastic deformation of the concave portion.

Abstract: A heat sink with fins comprising a group of heat dissipating fins which comprise combination of heat dissipating fins made of at least two kinds of metals having different heat conductivity, and a metal base plate on which surface portion the group of heat dissipating fins are densely jointed.

Abstract: A plate type thin heat pipe comprises: a group of wire members comprising a plurality of first metal wire members placed in a same plane in parallel with a prescribed distance spaced out, and a plurality of second metal wire members placed in a same plane in parallel with a prescribed distance spaced out and placed so as to cross the plurality of first metal wire members; a container having a hollow portion which is reduced in inner pressure and hermetically sealed comprising an upper plate member and a lower plate member placed face to face, each of which is made of thin copper plate, formed in such a manner that each of the upper plate member and the lower plate member contacts the group of wire members, and the group of wire members are sandwiched by the upper and lower plate members, and water as a working fluid received in the container.

Abstract: A heat sink with fins comprising a group of heat dissipating fins which comprise combination of heat dissipating fins made of at least two kinds of metals having different heat conductivity, and a metal base plate on which surface portion the group of heat dissipating fins are densely jointed.

Abstract: A heat sink with fins comprising a group of heat dissipating fins which comprise combination of heat dissipating fins made of at least two kinds of metals having different heat conductivity, and a metal base plate on which surface portion the group of heat dissipating fins are densely jointed.

Abstract: A plate type thin heat pipe comprises: a group of wire members comprising a plurality of first metal wire members placed in a same plane in parallel with a prescribed distance spaced out, and a plurality of second metal wire members placed in a same plane in parallel with a prescribed distance spaced out and placed so as to cross the plurality of first metal wire members; a container having a hollow portion which is reduced in inner pressure and hermetically sealed comprising an upper plate member and a lower plate member placed face to face, each of which is made of thin copper plate, formed in such a manner that each of the upper plate member and the lower plate member contacts the group of wire members, and the group of wire members are sandwiched by the upper and lower plate members, and water as a working fluid received in the container.

Abstract: A Peltier module comprising: thermoelectric elements in which plural p-type and n-type thermoelectric elements are alternately arranged, metal electrodes placed in both ends of the thermoelectric elements in order to connect the thermoelectric elements in series, and metal substrates on at least a part of which surfaces an insulating thin film is formed, the metal substrates being oppositely placed so as to be connected to the metal electrodes and sandwich the metal electrodes and the thermoelectric elements.

Abstract: A kinetic ice inhibitor is added to water in very small quantities (0.5 to 1.0 wt. %) to inhibit the nucleation and growth of ice crystals when the water is used as a working fluid in a heat transfer device, such as a vapor chamber heat sink. The preferred type of kinetic ice inhibitor is a water soluble polymer or copolymer, such as polymers, copolymers of polyvinylpyrrolidone (PVP) and polyvinylcaprolactam (PVCAP) and terpolymers VC-713. These polymers kinetically delay or inhibit the formation and growth of ice crystals in the water and significantly reduce the chances of expansion damage to the heat transfer device when subjected to below freezing temperatures potentially encountered during shipment and storage.

Abstract: A heat sink with fins comprising a group of heat dissipating fins which comprise combination or heat dissipating fins made of at least two kinds of metals having different heat conductivity, and a metal base plate on which surface portion the group of heat dissipating fins are densely jointed.

Abstract: There is provided a heat sink comprising a base plate provided with a plurality grooves and concave portions, each of which has a substantially trapezoidal cross section having a flat bottom face and inclined side faces and is formed into a tapered shape, formed between the adjacent grooves by plastic deformation; and a plurality of thin-sheet fins which are inserted in the grooves and are crimped from both sides by the inclined side faces formed by the plastic deformation of the concave portion.

Abstract: Client information is collected by a client entering his or her address, name, etc. when the client buys merchandise and makes a payment. The client information is written to a CD-RW which is provided for the client. When the client uses the CD-RW to access the home page of the selling agent of the merchandise, the client information recorded on the CD-RW is transmitted to the server of a client database generation company. The server generates a client information database classified by merchandise categories.

Abstract: In a foreign matter detecting apparatus 1, light beams are applied to a moving plastic resin extruded from an extruder, and a foreign matter, if any, in the plastic resin is detected by transmitted light beams. First and second projectors 30a,30b of the foreign matter detecting apparatus apply a plurality of light beams with different convergence diameters to the plastic resin which is extruded and moves in a passage 18. First and second light receivers 40a,40b receive the light beams transmitted through the plastic resin, and compare their respective reception levels with a plurality of levels of light reception which are previously set corresponding to the size of the foreign matter. Based on the result of comparison, the light receivers detect the presence and size of the foreign matter involved in the plastic resin.

Abstract: The present invention proposes a heat pipe heat exchanger comprising a hot gas flow duct, a cold gas flow duct and a plurality of heat pipes each with spiral fins around thereof that are installed horizontally a little slanted so that an end of each heat pipe in said hot gas flow duct becomes a little lower than the other end, and that said spiral fins are winding clockwise around some of the heat pipes and counter-clockwise around some other heat pipes. This device can prevent a bias flow of the steel balls at the so-called shot cleaning process performed for elimination of dust deposited on the heat pipes by arranging a layout of the two kinds of heat pipes, namely the heat pipes with clockwise winding fins around thereof and the heat pipes with counter-clockwise winding fins, and if required, can even control the flow of the steel balls so that they gather onto the area where more dust is deposited.