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:
Jul. 23, 2019
Filed:
Nov. 28, 2014
Hitachi Chemical Company, Ltd., Tokyo, JP;
Takashi Naito, Tokyo, JP;
Shinichi Tachizono, Tokyo, JP;
Kei Yoshimura, Tokyo, JP;
Yuji Hashiba, Tokyo, JP;
Takuya Aoyagi, Tokyo, JP;
Motomune Kodama, Tokyo, JP;
Taigo Onodera, Tokyo, JP;
Tadashi Fujieda, Tokyo, JP;
HITACHI CHEMICAL COMPANY, LTD., Tokyo, JP;
Abstract
There is disclosed a heat-insulating member including a pair of substrates and an airtight sealing part, in which the airtight sealing part is formed in an outer peripheral part between the pair of substrates to form a space between the pair of substrates, the space being in a vacuum or reduced pressure state, a sealing material that forms the airtight sealing part includes a low-melting glass, and the low-melting glass contains a vanadium oxide, barium oxide, phosphorus oxide, and tungsten oxide, in which the following two relational expressions are satisfied in terms of oxide contents: VO+BaO+PO+WO≥90 and VO>BaO>PO>WO(wherein unit: mol %). Thereby, influence on environmental impact can be reduced and maintenance of airtightness and an improvement in acid resistance can be achieved.