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. 28, 2020
Filed:
May. 31, 2017
Nippon Steel Nisshin Co., Ltd., Chiyoda-ku, Tokyo, JP;
NIPPON STEEL NISSHIN CO., LTD., Tokyo, JP;
Abstract
A vacuum insulation panel manufacturing method that makes it possible to manufacture low-cost, high-performance vacuum insulation panels, and a vacuum insulation panel are provided. This method of manufacturing a vacuum insulation panel () involves: a stacking step in which a first metal plate () is overlaid on one side of a thermally insulating core material (), and in which a backing member () having an opening () and a second metal plate () having an exhaust port () are placed, with the opening () and the exhaust port () overlapping, overlaid on each other on the other surface of the core member () in the order of backing member () and second metal plate () from the core member () side; a first welding step for welding outwards of where the core member () is disposed in the first metal plate () and the second metal plate (); a vacuum creating step for evacuating air from the exhaust pert () to create a vacuum in an inner area which is held between the first metal plate () and the second metal plate () and in which the core member () is arranged; and a laser welding step in which, in a state in which the inner area is made into a vacuum by the vacuum creating step, the exhaust port () is sealed by means of a sealing material () and the sealing material (), the second metal plate () and the backing member () are laser welded.