Abstract: A glass panel and a manufacturing method thereof including numerous spacers (2) interposed between a pair of plate glasses (1A, 1B), an outer peripheral closing portion (4) provided between outer peripheries of the pair of plate glasses, and a sucking portion (3) provided in one plate glass (1A) of the pair of plate glasses for vacuum-closing a void portion (V) between the pair of plate glasses, wherein, in constructing the sucking portion (3), a sucking mouth (1a) is provided in one plate glass, a closing plate (6) is disposed to cover the sucking mouth and to lie along a plane of the one plate glass, and the one plate glass is integrated with the closing plate (6) by a bonding portion (7).

Abstract: A conductive glass with a coat constituted mainly of a potassium-contained stannic oxide applied on a glass substrate, wherein a film thickness of the coat constituted mainly of the stannic oxide comes within the range of 1 to 100 nm, a potassium concentration is 0.1 to 10.0 wt %, and a surface compression stress of the conductive glass is 30 to 100 kg/mm.sup.2. After the stannic oxide coat is formed on the glass substrate, it is brought into contact with a melted potassium nitrate to contain potassium in the glass substrate and the coat.