An antenna unit for glass according to the present invention is installed on the indoor side of a glass sheet, and transmits and receives electromagnetic waves at the indoor side through the glass sheet.

A cover glass of the present invention includes a sealing material layer on one surface, wherein the sealing material layer has a gap formed therein.

A cover glass of the present invention includes a sealing material layer on one surface, wherein the sealing material layer has a gap formed therein.

A panel like, double-sided coated substrate and a method for production are provided. The panel like substrate includes at least two layers applied by heating, the first layer being applied on a first side of the substrate and having at least a glass component and structure-forming particles, the particles producing elevations on the first layer, and the softening temperature or the melting temperature of the particles being greater than the softening temperature of the glass component, and the second layer being applied on a second side of the substrate.

A panel like, double-sided coated substrate and a method for production are provided. The panel like substrate includes at least two layers applied by heating, the first layer being applied on a first side of the substrate and having at least a glass component and structure-forming particles, the particles producing elevations on the first layer, and the softening temperature or the melting temperature of the particles being greater than the softening temperature of the glass component, and the second layer being applied on a second side of the substrate.

A method for forming an image, the method including forming an image by irradiating an ink that absorbs light with a laser beam that has a wavelength corresponding to a light absorption wavelength of the ink to fly the ink by an energy of the laser beam in a direction in which the laser beam is emitted, to attach the ink on an attachment target.

A method for forming an image, the method including forming an image by irradiating an ink that absorbs light with a laser beam that has a wavelength corresponding to a light absorption wavelength of the ink to fly the ink by an energy of the laser beam in a direction in which the laser beam is emitted, to attach the ink on an attachment target.

A method of modifying glass frit involves treating the frit with a grain-boundary-healing compound. The method increases transmission and clarity, and reduces haze of a fired enamel coating made from such modified glass frit as compared to a coating not made from such modified glass frit. The grain-boundary-healing compound influences the chemistry at the grain boundaries to prevent haze. The compound burns out to yield a fluxing material that dissolves alkaline carbonates or bicarbonates on the surface of the glass frit. The dissolved species are incorporated into the enamel coating, thereby promoting the fusion of the glass frit and reducing the amount of haze in the enamel coating. The additives also function to prevent the formation of seed crystals on the surface of the glass frit that may inhibit the fusion of the glass frit.

A method of modifying glass frit involves treating the frit with a grain-boundary-healing compound. The method increases transmission and clarity, and reduces haze of a fired enamel coating made from such modified glass frit as compared to a coating not made from such modified glass frit. The grain-boundary-healing compound influences the chemistry at the grain boundaries to prevent haze. The compound burns out to yield a fluxing material that dissolves alkaline carbonates or bicarbonates on the surface of the glass frit. The dissolved species are incorporated into the enamel coating, thereby promoting the fusion of the glass frit and reducing the amount of haze in the enamel coating. The additives also function to prevent the formation of seed crystals on the surface of the glass frit that may inhibit the fusion of the glass frit.

The present invention relates to a glass-ceramic article at least partly coated with at least one layer of an enamel formed from a glass frit having the following composition, the proportions being expressed as weight percentages: TABLE-US-00001 SiO.sub.2 50-66% and preferably 50 < SiO.sub.2 65% MgO 3-8% and preferably 3-6% Na.sub.2O 7-15% K.sub.2O 3% Li.sub.2O 3%, in particular 2% CaO 1% BaO >0-15% and preferably 5-15% Al.sub.2O.sub.3 3-20% and preferably 3 < Al.sub.2O.sub.3 < 20% ZrO.sub.2 0-4%, preferably 0 < ZrO.sub.2 < 4%, in particular 0.5-2% ZnO >0-5% B.sub.2O.sub.3 >0-6% and preferably 0 < B.sub.2O.sub.3 5% the sum of the alkaline-earth metal oxides CaO+BaO moreover being between 8 and 15%, and the sum of the alkali metal oxides Na.sub.2O+K.sub.2O+Li.sub.2O moreover being between 7 and 20%. The invention also relates to the reinforced glass-ceramics obtained.