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. 16, 2019
Filed:
Jan. 17, 2017
Hitachi Chemical Company, Ltd., Tokyo, JP;
Tatsuya Miyake, Tokyo, JP;
Takashi Naito, Tokyo, JP;
Takuya Aoyagi, Tokyo, JP;
Eiichi Ogiwara, Tokyo, JP;
Akihito Iwai, Tokyo, JP;
Shinichi Tachizono, Tokyo, JP;
Kei Yoshimura, Tokyo, JP;
Yuji Hashiba, Tokyo, JP;
HITACHI CHEMICAL COMPANY, LTD., Tokyo, JP;
Abstract
An object of the present invention is to provide a multi-layer glass with high degree of vacuum and high mass productivity. In order to achieve the object, the multi-layer glass according to the present invention includes a first glass substrate, a second glass substrate disposed facing the first glass substrate with a space therebetween, a sealing portion, which contains a glass composition and is disposed in a peripheral edge portion of the space between the first glass substrate and the second glass substrate, and column members disposed between the first glass substrate and the second glass substrate, wherein the column member is made of a metal or alloy, and a melting point of the metal or alloy is higher than a softening point of the glass composition and is lower than or equal to a temperature 20° C. higher than a flow point of the glass composition.