Agc Inc.

Yoshinobu Morita

Shunsuke Sadakane

Takahiro Ishida

Masayuki Takahara

Masashi Kasajima

Shingo Wakahara

Tsuyoshi Otsuka

Raita Sugisaki

A laminated glass includes an interlayer between an exterior glass plate and an interior glass plate; an information acquisition area; and a test area A specified in JIS R3212. The information acquisition area is positioned above the test area A. At least a part of a periphery of the information acquisition area is surrounded by a shielding layer formed of a colored ceramic layer. One of the exterior and interior glass plates is thicker at an upper end than at a lower end. Denoting a degree of thickness difference of the information acquisition area by &#x3b1; and a degree of thickness difference of the test area A by &#x3b2;, a ratio &#x3b1;/&#x3b2; is greater than or equal to 1.01, where &#x3b1; or &#x3b2; is the ratio of thicknesses of the exterior and interior glass plates at the center of gravity of the corresponding area.

Laminated glass

A manufacturing method for a laminated glass in which a plurality of glass plates are laminated, includes a first main forming step of heating a first glass plate to a first softening point or higher to perform a main forming; a second main forming step of heating a second glass plate to a second softening point or higher to perform the main forming; a first finish forming step of bending and forming the first glass plate into a desired shape; and a second finish forming step of bending and forming the second glass plate into a desired shape. The first and second main forming steps are performed by using a same forming die. A first condition for lowering a temperature of the first glass plate to below the first softening point and a second condition for the second glass plate are different from each other.

Manufacturing method for laminated glass

Growing community of inventors

Tokyo, Japan

Yoshinobu Morita