Abstract: The glass article has a three-dimensional shape. The glass article contains a first surface and at least one second surface opposite to the first surface, and contains a bent part in at least one place of the first surface or the second surface.

Abstract: The glass article has a three-dimensional shape. The glass article contains a first surface and at least one second surface opposite to the first surface, and contains a bent part in at least one place of the first surface or the second surface.

Abstract: The glass article has a three-dimensional shape. The glass article contains a first surface and at least one second surface opposite to the first surface, and contains a bent part in at least one place of the first surface or the second surface.

Abstract: The glass article has a three-dimensional shape. The glass article contains a first surface and at least one second surface opposite to the first surface, and contains a bent part in at least one place of the first surface or the second surface.

Abstract: A method capable of forming a sufficiently thick low alkali concentration region without heating glass to a high temperature and even in an atmosphere which is not an atmosphere of plasma formation gas such as helium and argon, is provided. A glass substrate having a pair of main surfaces and being made of glass containing an alkali oxide in its composition, is disposed between a first electrode and a second electrode so that one main surface is separated from the first electrode and the other main surface is brought into contact with the second electrode, and a corona discharge is generated by applying a direct-current voltage to the first electrode as a positive electrode and the second electrode as a negative electrode, in a positive-electrode-side surface layer portion of the glass substrate, at least one positive ion including an alkali ion migrate toward the negative-electrode-side.

Abstract: The present invention provides a cover glass for flat panel displays, which can simplify an edge treatment and is excellent in design, and a method for producing the same. The method includes: a local heating step S3 of locally heating regions 1b to be the bent portions 33 of the cover glass 30 in the sheet glass 1; and a bending step S4 of forming the skirt portions 32 by bending the sheet glass 1 at the regions 1b to be the bent portions 33, during or after the local heating step.

Abstract: A press mold for fabricating a glass substrate, the glass substrate comprising a substrate; and a terrace-shaped flat portion formed on the substrate and having a grooved portion formed therein, is characterized in that the press mold comprises a top mold and a bottom mold; at least one of the top mold and the bottom mold having an indented portion formed therein so as to correspond to the terrace-shaped flat portion, the indented portion having an entire periphery surrounded by a mold reference surface.

Abstract: A press mold for fabricating a glass substrate, the glass substrate comprising a substrate; and a terrace-shaped flat portion formed on the substrate and having a grooved portion formed therein, is characterized in that the press mold comprises a top mold and a bottom mold; at least one of the top mold and the bottom mold having an indented portion formed therein so as to correspond to the terrace-shaped flat portion, the indented portion having an entire periphery surrounded by a mold reference surface.

Abstract: In a panel for a color cathode ray tube, an at least 10% portion in a width direction of a seal edge surface of the panel is a roughened surface which satisfies: 5 &mgr;m≦Rz≦30 &mgr;m, 150 &mgr;m≦Sm≦500 &mgr;m, and 0.015≦Rz/Sm≦0.2 where Rz represents an average depth of a concave/convex portion formed in the seal edge surface and Sm represents an average period of adjacent concave or convex portions, whereby the production of flaws and the deposition of stains in the seal edge surface is prevented.

Abstract: A glass forming mold which comprises a substrate made of stainless steel and a coating comprising the following components formed as the outermost surface coating on the substrate: (1) from 40 to 94 wt % of nickel and/or cobalt as component A; (2) from 5 to 59 wt % of tungsten as component B; and (3) from 0.5 to 40 wt % of at least one transition element having a melting point of at least 2,200.degree. C. as component C.

Abstract: A memory card storage device is adapted to be used in various electronic apparatus, in which a memory card is used. The device has a lid so hinged to a case of a main body of the apparatus as to open receiving the memory card, a card connector slidably mounted in the lid, and a revolving link pivotted at a part of the case near the front end of the lid. The revolving link and the card connector are so connected as to interlock. The case and the lid form a closed space storing the memory card when the lid is closed. The memory card is stored in the closed space. When the lid is open, the link revolves and the connector is drawn toward the outside of the case, ejecting the memory card.