Asahi Glass Company, Limited

Kazuhide Kuno

Hiroyuki Yamamoto

Makoto Shiratori

Yuuichi Iida

Coating film-attached glass includes: glass containing a coloring component; and a colored coating film formed on one major surface of the glass, wherein at least one of an absolute value of a difference between (&#x394;a*(D65&#x2212;F2)) of the glass and (&#x394;a*(D65&#x2212;F2)) of the coating film and an absolute value of a difference between (&#x394;a*(A&#x2212;F2)) of the glass and (&#x394;a*(A&#x2212;F2)) of the coating film is 0.2 or more, where (&#x394;a*(D65&#x2212;F2)) is a difference between a chromaticity a* value of reflected light by a D65 light source and a chromaticity a* value of reflected light by an F2 light source in an L*a*b* color system and (&#x394;a*(A&#x2212;F2)) is a difference between a chromaticity a* value of reflected light by an A light source and the chromaticity a* value of the reflected light by the F2 light source in the L*a*b* color system.

Coating film-attached glass, coating film-attached chemically strengthened glass, exterior member, and electronic device

To provide a crystallized glass housing excellent in properties suitable for a housing for an electronic device, such as shielding properties, high strength and production cost. A crystallized glass housing made of crystallized glass, said crystallized glass having a diffused transmittance of 15% or less in the entire light wavelength region of from 380 nm to 780 nm, as measured by using an integrated sphere.

Crystallized glass housing

There is provided a glass for chemical strengthening having a gray-based color tone and excelling in characteristics preferred for the purposes of housing or decoration of an electronic device, that is, bubble quality, strength, and light transmittance characteristics. A glass for chemical strengthening contains, in mole percentage based on following oxides, 55% to 80% of SiO, 3% to 16% of AlO, 0% to 12% of BO, 5% to 16% of NaO, 0% to 4% of KO, 0% to 15% of MgO, 0% to 3% of CaO, 0% to 18% of &#x3a3;RO (where R represents Mg, Ca, Sr, Ba or Zn), 0% to 1% of ZrO, 0.01% to 0.2% of CoO, 0.05% to 1% of NiO, and 0.01% to 3% of FeO.

Glass for chemical strengthening

There is provided a glass for chemical strengthening having a black color tone and excelling in characteristics preferred for the purposes of housing or decoration of an electronic device, that is, bubble quality, strength, and light transmittance characteristics. A glass for chemical strengthening contains, in mole percentage based on following oxides, 55% to 80% of SiO, 3% to 16% of AlO, 0% to 12% of BO, 5% to 16% of NaO, 0% to 4% of KO, 0% to 15% of MgO, 0% to 3% of CaO, 0% to 18% of &#x3a3;RO (where R represents Mg, Ca, Sr, Ba or Zn), 0% to 1% of ZrO, and 0.1% to 7% of a coloring component having at least one metal oxide selected from the group consisting of oxides of Co, Mn, Fe, Ni, Cu, Cr, V and Bi.

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Haibara-gun, Japan

Kazuhide Kuno