摘要:
A corrosion inhibitor for magnesium and/or magnesium alloy containing, as an effective component, a least one kind of compound selected from the group consisting of a compound of the formula (1) and a compound of the formula (2) and salts thereof, and a process for producing components or parts made of magnesium and/or magnesium alloy using the corrosion inhibitor wherein R1 is a hydrogen atom, or C1-4 alkyl, R2 is a hydrogen atom, C1-4 alkyl, mercapto or hydroxy, R3 is a hydrogen atom, C1-4 alkyl or hydroxy, A is —N═ or —C(R4)═, R4 is a hydrogen atom or amino.
摘要:
In a polymer electrolyte fuel cell wherein a plurality of unit cells are arranged in a flat manner oriented in the same direction, and the prescribed adjacent unit cells are electrically connected in series so as to connect the plurality of unit cells in series, a flat-type polymer electrolyte fuel cell is made possible by providing at least one of a through hole connecting portion, a filled via connecting portion and a bump connecting portion in an insulating portion located between the prescribed adjacent unit cells, electrically insulated from the unit cells and having a thickness approximately equal to that of the unit cell, for establishing electrical connection between the prescribed adjacent unit cells.
摘要:
A resin-encapsulated package includes a semiconductor IC chip, wherein the ratio of the size of the semiconductor IC chip to the package size of the resin-encapsulated package including the semiconductor IC chip is large to miniaturize the resin-encapsulated package. The resin-encapsulated package includes a semiconductor IC chip sealed in a resin molding, and a lead member having an arrangement of a plurality of discrete terminal sections. Each terminal section has inner terminal parts to be electrically connected to terminals of the semiconductor IC chip, outer terminal parts to be connected to external circuits, and connecting parts interconnecting the inner and the outer terminal parts. The contact surfaces of the inner terminal parts and the outer terminal parts face toward opposite directions, respectively. The contact surfaces of the inner terminal parts of the terminal sections are flush with each other.
摘要:
In a polymer electrolyte fuel cell wherein a plurality of unit cells are arranged in a flat manner oriented in the same direction, and the prescribed adjacent unit cells are electrically connected in series so as to connect the plurality of unit cells in series, a flat-type polymer electrolyte fuel cell is made possible by providing at least one of a through hole connecting portion, a filled via connecting portion and a bump connecting portion in an insulating portion located between the prescribed adjacent unit cells, electrically insulated from the unit cells and having a thickness approximately equal to that of the unit cell, for establishing electrical connection between the prescribed adjacent unit cells.
摘要:
In a through hole closing process, a metal plate is attached to one surface of a conductive base member having a plurality of through holes by the use of a magnet, in a copper plating process, a copper plating layer is formed on the conductive base member and the metal plate exposed within the through holes, from the side of the conductive base member where the metal plate is not attached, thereby to fill up the through holes, in a film forming process, a Pd alloy film is formed by plating on the surface of the conductive base member after removal of the metal plate, and in a removal process, the copper plating layer is removed by selective etching, thereby to produce a hydrogen production filter that is used in a reformer of a fuel cell so as to be capable of stably producing high purity hydrogen gas.
摘要:
The invention is an object of the invention to provide a strainer for an oil supply mouth, preventing the oil flowing when supplying the oil from colliding with the float so as to accurately detect the height of the liquid level. The strainer for an oil supply mouth of the invention has a guide hole equipped in vertical directions and a float for an oil level gauge passing movably in vertical directions through this guide hole. When the oil comes up to an at least reference liquid level, the float is received at a lower end within the guide hole.
摘要:
A fabricating method of a wiring board provided with passive elements is disclosed. The fabricating method includes coating one or both of resistive paste and dielectric paste on at least any one of first surfaces of a first metal foil and a second metal foil each of which has a first surface and a second surface; arranging an insulating board having thermo-plasticity and thermo-setting properties so as to face the first surface of the first metal foil, and arranging the first surface side of the second metal foil so as to face a surface different from a surface to which the first metal foil faces of the insulating board; forming a double-sided wiring board by stacking, pressurizing and heating the arranged first metal foil, insulating board, and second metal foil, and thereby integrating these; and patterning the first metal foil and/or the second metal foil.
摘要:
A headgear which includes a crown put on a head and having an insertion through portion, and a headgear blow-away preventing device including a connection member having one end provided with a clip clipped to a wear. The other end of the connection member has a stopper mechanism for avoiding the connection member from falling out of the insertion through portion of the crown.
摘要:
A method of mounting surface-mounted type electronic components on a printed circuit board adapted to be carried out using an electronic component series which comprises a carrier tape formed with a plurality of tiny recess portions for receiving therein adhesives for use in temporary fixing of surface-mounted type electronic components on a printed circuit board, adhesives received in the respective recess portions, and a plurality of surface-mounted type electronic components held on the carrier tape through the adhesives. In the present invention, the taking up of the electronic component from the carrier tape is performed while pushing up the tiny recess portion of the carrier tape to cause the same portion to be deformed, so that the electronic component can be easily removed together with the adhesive from the carrier tape, and the removed electronic component is then placed on a printed circuit board to be temporarily held on the printed circuit board through the adhesive having adhered on the bottom surface of the electronic component.
摘要:
A training instruction based on an ideal breath pattern to obtain the relaxation state in which the alpha wave mainly appears is informed by the acoustic output and/or photoelectric display in order to perform the respiration training. The state of the abdominal respiration of a person to be examined is detected by a sensor attached to the abdominal region. The detected breath pattern by the abdominal respiration is compared with the ideal breath pattern. A degree of similarity between them is informed.