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:
Apr. 27, 2021
Filed:
Nov. 06, 2018
Nippon Sheet Glass Company, Limited, Tokyo, JP;
NIPPON SHEET GLASS COMPANY, LIMITED, Tokyo, JP;
Abstract
An object is to solve a strength problem around a suction hole on the gap side due to internal stress caused by a suction hole sealing metal material and depressurization, and provide a glass panel having enhanced safety. One glass plateA of a pair of glass platesA,B has a suction holepenetrating the glass plateA in the front-back direction thereof, air in a gap V is sucked so as to depressurize the gap V, and the suction holeis sealed by a suction hole sealing metal material. The suction hole sealing metal materialis solidified on the suction holeso as to keep an airtight state, and is formed concentrically with the suction holein plan view, and the following Expression (1) is satisfied:<=(−0.0361)/{(−0.0157+0.1945)*  (1)