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. 06, 2021
Filed:
May. 29, 2019
Showa Denko Materials Co., Ltd., Tokyo, JP;
Takashi Naito, Tokyo, JP;
Taigo Onodera, Tokyo, JP;
Tatsuya Miyake, Tokyo, JP;
Akitoyo Konno, Tokyo, JP;
Shinichi Tachizono, Tokyo, JP;
Yuji Hashiba, Tokyo, JP;
Keita Yuguchi, Tokyo, JP;
Takahiro Ikabata, Tokyo, JP;
Masaharu Matsuura, Tokyo, JP;
Showa Denko Materials Co., Ltd., Tokyo, JP;
Abstract
The lead-free glass composition contains vanadium oxide, tellurium oxide, alkali metal oxide, iron oxide, barium oxide, and tungsten oxide while containing substantially no phosphorus oxide, and further contains at least one of additional components including yttrium oxide, lanthanum oxide, cerium oxide, erbium oxide, ytterbium oxide, aluminum oxide, and gallium oxide. A content of the tellurium oxide is equal to or more than 25 mol %, and equal to or less than 43 mol % in terms of oxide TeO. A content of the alkali metal oxide is equal to or more than 4 mol %, and equal to or less than 27 mol % in terms of oxide RO (R: alkali metal element).