The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 1996
Filed:
Aug. 13, 1993
Yasunchu Iida, Matsusaka, JP;
Satoru Honda, Matsusaka, JP;
Sachio Asai, Taki, JP;
Isao Nakamura, Fujisato, JP;
Hidenori Noguchi, Matsusaka, JP;
Takao Tomioka, Kawa, JP;
Central Glass Company, Limited, Ube City, JP;
Abstract
A gray-colored heat insulating glass plate has a transparent glass plate and a multilayer coating formed on one side of the glass plate. The multilayer coating includes first, second and third layers. The first layer is formed on a surface of the glass plate, is a film of a tantalum oxide, and has a thickness ranging from 5 to 20 nm. The second layer is formed on the first layer, is a film of an oxynitride of a metal selected from Cr, Ni--Cr alloy and stainless steel, and has a thickness ranging from 5 to 25 nm. The third layer is formed on the second layer, is a film of a tantalum oxide, and has a thickness ranging from 5 to 20 nm. The heat insulating glass plate is sufficiently low in transmittance for solar radiation, sufficiently high in transmittance for radio waves, relatively low in transmittance for the visible light and good in durability.