Invention Grant
- Patent Title: Reduced pressure double glazed glass panel
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Application No.: US14655236Application Date: 2013-12-25
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Publication No.: US09856692B2Publication Date: 2018-01-02
- Inventor: Daisuke Inaoka , Yoshifumi Kijima , Tetsuo Minaai
- Applicant: Nippon Sheet Glass Company, Limited
- Applicant Address: JP Tokyo
- Assignee: NIPPON SHEET GLASS COMPANY, LIMITED
- Current Assignee: NIPPON SHEET GLASS COMPANY, LIMITED
- Current Assignee Address: JP Tokyo
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2012-287386 20121228
- International Application: PCT/JP2013/007584 WO 20131225
- International Announcement: WO2014/103301 WO 20140703
- Main IPC: E06B3/66
- IPC: E06B3/66 ; E06B3/67

Abstract:
The reduced pressure double glazed glass panel of the present invention includes an outside glass sheet, an inside glass sheet, and a gap portion that are joined together, with the gap portion being formed between the glass sheets and sealed under reduced pressure. Here, the outside glass sheet has a first glass surface disposed to face the outdoor space and a second glass surface disposed to face the gap portion. A Low-E film is formed on the second glass surface. The following relations hold: (Emissivity of Low-E film ∈)≦0.067; 31%≦(Solar reflectance on First glass surface RG(solar))≦40%; (48−RG(solar))%≦(Solar absorptance on First glass surface AG(solar))≦17%; (AG(solar))≦{18.3−(0.07×RG(solar))+(20×∈)}%; (Solar heat gain coefficient SHGC)≦0.50; and (Thermal transmittance U value)≦1.2 W/m2·K or less. According to the present invention, it is possible to provide a reduced pressure double glazed glass panel having sufficient heat insulating and heat shielding properties and being less susceptible to bending when exposed to solar radiation.
Public/Granted literature
- US20150354264A1 REDUCED PRESSURE DOUBLE GLAZED GLASS PANEL Public/Granted day:2015-12-10
Information query
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