An ultraviolet laser beam with a pulse width of 100-300 (nsec) is applied to a resin layer of a printed circuit board to make a hole.

An ultraviolet laser beam with a pulse width of 100-300 (nsec) is applied to a resin layer of a printed circuit board to make a hole.

PROBLEM TO BE SOLVED: To provide a pimple-treating agent having higher therapeutic effect. SOLUTION: The objective skin care preparation as a pimple-treating agent is characterized by comprising sulfur and a lipase activity inhibitor.

PROBLEM TO BE SOLVED: To provide a transfer sheet for an electroconductive layer provided with a releasing layer, firmly adhesive to a circuit board without causing squeeze-out of the adhesive layer from the cross-section of the circuit in the transfer of a conductor and enabling the transfer printing of an electroconductive layer or the transfer of a conductor layer with a resin substrate in a sa...

PROBLEM TO BE SOLVED: To lower the amount of fuel consumption by eliminating excessive acceleration which is not intended by a driver and to increase an exhaust emission control performance, by extending the time, during which a waste gate valve control valve comes within a feedback control range, in a supercharging pressure controller of an internal combustion engine. SOLUTION: The control means ...

PROBLEM TO BE SOLVED: To reduce the shift shock by detecting the timing of change of the torque transmission at the time of shifting up and shifting down securely and without matching, and grasping the timing of starting the control of engine output, the oil pressure of a transmission, etc. SOLUTION: The device comprises a pre-transmission torque signal detecting means for detecting the time when ...

PROBLEM TO BE SOLVED: To reduce the burden of maintenance management in a system for providing information and map of an advertisement or the like concerning a base. SOLUTION: A map system 100 and a information providing system 20 are connected via a network. The map system 100 is a general map providing server for providing a map around a requested spot. The base information providing system 20 i...

PROBLEM TO BE SOLVED: To provide a money transaction system 11 capable of shortening occupying time of one customer in a money changer 13. SOLUTION: A money receiving machine 12 specifies a customer with a received money processing customer specifying means 17, receives money with a money receiving means 16 and performs money receiving processing. A money exchange contents designating means 18 of ...

PROBLEM TO BE SOLVED: To provide at a low cost a silicon carbide semiconductor device having a low reverse leakage current. SOLUTION: The silicon carbide semiconductor device has an SiC substrate 1, a drift layer 2 made of SiC formed on the upper surface of the SiC substrate 1, and a Schottky barrier electrode 4 that is brought into contact with the drift layer 2 for arranging, so that one portion...

An improved and lower cost color spectrophotometer, especially suitable for an on-line color printer color control system, in which plural different spectra LEDs sequentially perpendicularly illuminate a common and substantially circularly illuminated color test area, which may be variably spaced and variably oriented relative to the spectrophotometer, through a common central lens system, and als...

In some aspects, each cell in the communications system can be designed to operate in accordance with a set of back-off factors that identify the reductions in peak transmit power levels for the channels associated with the back-off factors. The back-off factors are defined to provide the required power to a large percentage of the users while reducing the amount of interference. In some other asp...

The present invention relates to an inspection system for inspection of an object, comprising at least an image recording means (30, 30') carried by an inspector (20, 20'), a display unit, a storage unit and a contact free positioning unit (40). The storage unit is arranged to store at least an image taken by said imaged recording unit (30, 30') in relation to a position given by said positioning ...

PROBLEM TO BE SOLVED: To provide a method for efficiently and simply recovering a fluoropolymer from a used ion exchange membrane. SOLUTION: This method comprises swelling an ion exchange membrane containing a carboxyl-containing fluoropolymer (hereinbelow, referred to as polymer C) and a sulfo-containing fluoropolymer (hereinbelow, referred to as polymer S) and having adherent inorganic particles...

PROBLEM TO BE SOLVED: To provide a method for efficiently and simply recovering a fluoropolymer from an ion exchange resin left after being used in e.g. the electrolysis of common salt. SOLUTION: This method comprises swelling an ion exchange membrane containing a carboxyl-containing fluoropolymer (hereinbelow, referred to as polymer C) and a sulfo-containing fluoropolymer (hereinbelow, referred t...

PROBLEM TO BE SOLVED: To depolymerize a polyethylene terephthalate to be recycled within a short time. SOLUTION: In producing an unsaturated polyester resin by using a polyethylene terephthalate to be recycled after it is molten by heating, the heating, melting, and depolymerization of the polyethylene terephthalate are practiced at a time by using one or more extruders or by using an extruder and...

PROBLEM TO BE SOLVED: To provide a powdered thickener composition well mixable in an aqueous system such as water-base coating or water-base lacquer. SOLUTION: This thickener composition is powdered and forms a solution, a suspension or a melt of a mixture containing (a) at least one urethane group- containing water-soluble or a water-dispersible thickener, (b) at least one substance which is a so...

PROBLEM TO BE SOLVED: To provide a sealant composition preventing the rapture and breakage or the inner pressure decrease of a pressure container, and a tire. SOLUTION: The sealant composition comprises particles having an average bulk specific gravity of <=0.3 under ambient pressure and a sealant matrix material. Preferably, the particles are at least one kind selected from hollow particles and p...

PROBLEM TO BE SOLVED: To provide a method for easily and economically supplying purging gas to the combustion chamber of a gas turbine, after recompression. SOLUTION: An air distillation unit comprises a low-pressure tower, operating at a pressure sufficiently higher than the atmospheric pressure. Waste nitrogen, provided from the tower serves, purges air refining adsorbers at a low pressure to de...

PROBLEM TO BE SOLVED: To stably manufacture a sintered sliding bearing having gas cavities sealed with a resin for reducing or blocking gaps in the gas cavities in less processes while maintaining the quality thereof. SOLUTION: The method of manufacturing the sintered sliding bearing having the gas cavities in a sintered body sealed with a resin comprises impregnating the gas cavities in the sinte...

PROBLEM TO BE SOLVED: To highly accurately measure a liquid flow rate by removing effects of thermal conduction to a pipe by measuring a temperature of the pipe in a flowmeter for measuring the liquid flow rate by heat. SOLUTION: There are set a temperature measuring means for measuring the temperature of the liquid to be measured which flows in the pipe formed of a synthetic resin member, a heat ...