Abstract: An antenna includes: a dielectric substrate; a conductive plane formed on a back surface of the dielectric substrate; a radiating element having a linear shape and formed on a front surface of the dielectric substrate; a shorting pin connecting one end of the radiating element to the conductive plane; and a power supply pin that is connected to the radiating element, at a point a predetermined distance away from the one end to which the shorting pin is connected, through a hole provided in the conductive plane, and that supplies a transmission signal to the radiating element. A radio wave is emitted from the radiating element.

Abstract: An antenna includes: a dielectric substrate; a conductive plane formed on a back surface of the dielectric substrate; a radiating element having a linear shape and formed on a front surface of the dielectric substrate; a shorting pin connecting one end of the radiating element to the conductive plane; and a power supply pin that is connected to the radiating element, at a point a predetermined distance away from the one end to which the shorting pin is connected, through a hole provided in the conductive plane, and that supplies a transmission signal to the radiating element. A radio wave is emitted from the radiating element.

Abstract: A retainer cylinder in which a cosmetic stick is fitted and held is provided with an engagement projection on a side surface therof and inserted in a guide cylinder so that the retainer cylinder can be moved slidingly in the vertical direction. A side wall of the guide cylinder is provided with an axially elongated guide groove through which the engagement projection is passed, and an annular locking recess is formed around the portion of an outer surface of the guide cylinder which is below a lower end of the guide groove. This guide cylinder is inserted in a sleeve so that the guide cylinder can be turned. The sleeve is provided at its lower portion with a locking rib engageable with the locking recess, whereby the sleeve is combined with the guide cylinder so that the sleeve does not come off from the guide cylinder, the sleeve being provided in its inner surface with a helical knurled thread having innumerable projections and recesses.

Abstract: A recording medium comprising at least one electron donating colorless dye and at least one electron accepting compound, wherein the electron accepting compound is a salicylic acid compound represented by formula (I): ##STR1## wherein R represents a divalent group; X and Y, which may be the same or different, each represents a hydrogen aotm, an alkyl group, an aryl group, an alkoxy group, or a halogen atom; and Z represents a hydrogen atom, a carboxyl group, an alkyl group, an aryl group, an alkoxy group, or a halogen atom, or a metal salt thereof.

Abstract: A recording material comprising a support, a microcapsule containing a substantially colorless electron-donating color former and a solvent, and an electron-accepting developer, wherein the color former is at least one selected from p-substituted aminophenylindolylphthalide derivatives, p-substituted aminophenylindolylazaphthalide derivatives and p-substituted aminophenylindolyldiazaphthalide derivatives, the solvent is a paraffin oil, and the amount of the solvent is at least 20% by weight based on the weight of the core substance.

Abstract: A recording material comprising a support provided thereon a color developer and microcapsules containing a substantially colorless color former is disclosed, wherein the microcapsules further contains at least one of nickel compounds represented by formulae (I) and (II) shown in the specification. The microcapsules exhibit excellent light-resistance, and a color image developed exhibits excellent light-fastness.

Abstract: A heat-sensitive recording material which produces a developed color image with improved light fastness upon application of thermal energy comprising:(1) an electron-donating colorless dye,(2) an electron-accepting compound, and(3) a nickel compound represented by formula (I): ##STR1## wherein R.sub.1 and R.sub.2 each represents an aryl group, or they may combine with each other; L represents an organic ligand which forms a complex salt by connecting to the nickel ion via its hetero atom; and n represents an integer of 0, 1 or 2.

Abstract: A color developer sheet which brings about color development by contact with a substantially colorless electron-donating color former, where said sheet contains an organometallic compound represented by the following general formula (I), (II) or (III) to enhance light resistance and stability of the color product obtained by the color development: ##STR1## wherein M represents a nickel atom, a copper atom, a cobalt atom, or a zinc atom; X.sub.1 and X.sub.2 each represents an oxygen atom, a sulfur atom, or --NR.sub.5 --, in which R.sub.5 represents a hydrogen atom, an alkyl group, an aryl group, or a hydroxyl group; X.sub.3 represents a hydroxyl group, or a mercapto group; Y represents an oxygen atom, a sulfur atom, or --CHR.sub.6, in which R.sub.6 represents a hydrogen atom, an alkyl group, or an aryl group; R.sub.1, R.sub.2, R.sub.3 and R.sub.

Abstract: A recording material comprising an electron-donating colorless dye and an electron-accepting compound, wherein said colorless dye is a dimer of a 3-(4-substituted aminoaryl)-3-(substituted indol-3-yl)phthalide compound. The recording material provides an image exhibiting satisfactory fastness, and particularly fastness to light even when preserved in a transparent polyvinyl chloride film.

Abstract: An encapsulated toner for use in electrostatography which comprises a shell and a core material comprising a colorant, a binder and a surface active polymer containing at least 5 mol % of a unit having the formula (I): ##STR1## wherein R is an aliphatic hydrocarbon group having 4 to 22 carbon atoms, A is a divalent aliphatic group having 1 to 50 carbon atoms, B is --O-- or NH--, M is a cation or a cationic radical capable of forming a salt with a sulfonic acid, and m and n are independently 0 or 1. A process for preparing the encapsulated toner which comprises forming a shell around a core material comprising a colorant and a binder in an aqueous medium, characterized in that said core material contains a surface active polymer containing at least 5 mol % of a unit having the above formula (I).