Nippon Electric Glass Co., Ltd.

Kiyoyuki Okunaga

Akira Matsui

Yoshinori Morita

Takehiro Shibuya

Kazuo Hadano

Koichi Hashimoto

Masayuki Ninomiya

Masahiko Ohji

Kakumi Shiraishi

Yoshirou Kitamura

Tatsuya Goto

Tatsuya Gotou

A glass tube for sealing a metal includes a glass that contains, in terms of mass %, 50% or more of SiO+BO, 0% to 10% of AlO, 3% to 20% of RO (R is an alkaline earth metal), and 11% to 22% of R'O (R&#x2032; is an alkali metal), and that has 10 &#x3bc;l/g or less of an amount of COemitted when heated from a room temperature to 1100&#xb0; C.

Glass tube for metal sealing and glass for metal sealing

In a PDP barrier ribs material comprising glass powder and silica-based filler powder, the silica-based filler powder comprises fused silica powder and &agr;-quartz powder. At least a part of the silica-based filler powder is spherical filler powder. The remaining part of the silica-based filler powder may be aspherical filler powder. In this case, the ratio of the spherical filler powder and the aspherical filler powder may be 30:70 to 100:0 in mass ratio.

Barrier ribs material for a plasma display panel

A high-mechanical strength biocompatible crystallized glass essentially comprises both crystallines consisting of tetrasilicic fluorine mica series and calcium phosphate series. The crystallized glass has substantially non-sodium oxide and useful in a dental medical care, as repairing material of tooth.

Biocompatible glass ceramics

Growing community of inventors

Otsu, Japan

Kiyoyuki Okunaga