Nippon Electric Glass Co., Ltd.

Yoshiharu Miwa

Kazuhiko Asahi

Michiharu Eta

Hiroki Mori

Yoshinori Hasegawa

Takayuki Noda

Junzo Wakaki

Toshimasa Kanai

Tsutomu Imamura

Nobutaka Daiku

Hajime Makio

Shigeyoshi Itou

Yoshinobu Saji

Provided is a laminate () obtained by integrally laminating glass sheets () on both surfaces of a resin sheet (). The glass sheets () have a thickness of 300 &#x3bc;m or less and end surfaces () of the glass sheets () are chamfered.

Laminate, method for cutting laminate, method for processing laminate, and device and method for cutting brittle plate-like object

In a reflector ( ) including a mirror base member ( ) having a concave surface, a reflecting film ( ) is formed on the concave surface. For preventing the fragments of the broken lamp from flying forward, a protective glass plate ( ) is attached to the mirror base member. At least one of the mirror base member and the protective glass plate is made of a glass member whose mechanical strength is enhanced. The mechanical strength of the glass member may be enhanced by ion exchange.

Low-cost reflector with excellent heat resistance

A glass panel for a cathode ray tube comprises a substantially rectangular face portion on which images are displayed and a skirt portion continuous to the face portion through a blend R portion. An effective screen size of the face portion in a diagonal direction is 500 mm or more, an average radius of curvature of an outer surface of the face portion is 10000 mm or more in all radial directions from a face center portion, and a difference in height between the face center portion and an edge portion of the effective screen in the diagonal direction on an inner surface of the face portion is in a range from 9 mm to 17 mm.

Glass panel for cathode ray tube

A glass article comprising a glass body having a surface and a water-soluble surface-protection film formed on the surface. The water-soluble surface-protection film is made of hydroxy acid or salt thereof. The hydroxy acid or the salt thereof is one or more kinds selected from the group consisting of citric acid, tartaric acid, malic acid, gluconic acid and salts thereof. An example of the glass body is a funnel part having an anode button for a CRT.

Glass article having surface coating of hydroxy acid and method of manufacturing the same

Boric acid is used as a surface-protection coating for protecting a desired surface area of a glass article from weathering, contamination by dirt, dust, moisture and others, and streaks and/or cracks due to collision and friction with other objects. The boric acid coating is readily washed out by water upon actual use of the glass article.

Glass article having surface coating of boric acid and method for producing the same

In a cathode ray tube us a glass panel having a difference in thickness between a central region and a peripheral region of a face portion, the glass panel having an outer surface with a colored film formed thereon, the colored film being thin in film thickness in an area corresponding to a thick part of the face portion of the glass panel and thick in film thickness in an area corresponding to a thin part of the face portion of the glass panel so as to reduce the difference in transmittance resulting from the difference in thickness between the central region and the peripheral region of the face portion of the glass panel. As another embodiment, the colored film comprises a film having a light color tone in an area corresponding to a thick part of the face portion of the glass panel and a dark color tone in an area corresponding to a thin part of the face portion of the glass panel.

Cathode ray tube having a reduced difference in light transmittances between a central region and a peripheral region of a panel face thereof

Substrate glass and plasma display made by using the same

A radiation shielding glass consisting esentially of 40.0% to 60.0% SiO.sub.2, 25.0% to 45.0% of PbO, 1.5% to 2.0% CeO.sub.2, 4.5% to 12.0% Na.sub.2 O, 2.0% to 9.0% K.sub.2 O, 0% to 5.0% B.sub.2 O.sub.3, and 0% to 10.0% BaO, Na.sub.2 O/(Na.sub.2 O+K.sub.2 O) being 0.5 to 0.8. The glass has a high radiation shielding capacity and is excellent in a resistance to browning by the gamma ray irradiation and an improved dielectric breakdown. The glass is useful for a window glass of an irradiation room of the gamma ray.

Growing community of inventors

Shiga, Japan

Yoshiharu Miwa