Abstract: A catalytic solution for a halide ion battery, which is an aqueous solution containing a quaternary ammonium halide salt or a hydrate thereof at 9.0 mol/kg to 11.0 mol/kg, is an electrolyte for a halide ion battery that has excellent safety and a wide potential window.

Abstract: An assisting apparatus assists an operating section. The operating section produces effect on a target surface. The assisting apparatus includes a retaining section for detachably retaining the operating section. An arranging section is placed on the target surface so as to arrange the retaining section on the target surface. An actuating section actuates the operating section such that the operating section produces effect on the target surface in a state where the retaining section retains the operating section. Therefore, an assisting apparatus that allow an operating section to easily and stably act on a target surface is provided.

Abstract: A pair of scissors including a pair of scissor pieces, each having a handle and a blade, and a pin, which connects the two scissor pieces so that they may be opened and closed. The cutting edges of the two blades intersect each other at an intersecting point that moves along a predetermined movement path when the two blades are opened and closed. A cap accommodates the two blades. The cap includes an engaging slit detachably engaged with at least the pin to keep the two blades accommodated in the cap. A slit is formed in the cap. The slit is located at a portion of the cap, which accommodates the two blades, corresponding to the movement path. The scissors improves safety regardless of whether or not the scissors are being used.

Abstract: A pair of scissors including a pair of scissor pieces, each having a handle and a blade, and a pin, which connects the two scissor pieces so that they may be opened and closed. The cutting edges of the two blades intersect each other at an intersecting point that moves along a predetermined movement path when the two blades are opened and closed. A cap accommodates the two blades. The cap includes an engaging slit detachably engaged with at least the pin to keep the two blades accommodated in the cap. A slit is formed in the cap. The slit is located at a portion of the cap, which accommodates the two blades, corresponding to the movement path. The scissors improves safety regardless of whether or not the scissors are being used.

Abstract: A multilayer-wiring substrate having a via hole structure and method for fabricating the same. Referring to FIGS. 1(a) and 1(b), after a via-hole 5 is formed by exposure and development in lithography or by laser-drilling, a bottom portion of the via-hole 5 is subjected to resin-etching so as to expose a surface 4A of a lower conductor 4 as shown in FIG. 3(b). The exposed surface 4A of the lower conductor 4 is chemically etched so that the conductor 4 is undercut. As a result, undesired material 5B such as adhered residual resin shown in FIG. 3(b) is completely removed. In etching the conductor 4 at the bottom of the via hole 5, the lower conductor 4 is preferably etched in an amount of 5-30% of the thickness of the lower conductor 4 to form a depression or recess 6A at a via hole bottom 5C as shown in FIG. 3(b), thereby reliably establishing electrical continuity between the lower conductor 4 and the upper conductor 8 by means of a via-hole conductor 7 as shown in FIG. 3(c).

Abstract: A method of making a printed board is provided. The printed board has a base provided with a plurality of through via conductors having through holes extending completely between upper and lower surfaces of the base and closed by resin fillings and a plurality of blind via conductors having depressions closed by resin fillings.