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:
May. 22, 2012
Filed:
Jun. 12, 2008
Satoshi Fujimine, Koriyama, JP;
Hitoshi Onoda, Koriyama, JP;
Kenji Imakita, Chiyoda-ku, JP;
Yasuko Osaki, Chiyoda-ku, JP;
Hiroyuki Yamamoto, Koriyama, JP;
Satoshi Fujimine, Koriyama, JP;
Hitoshi Onoda, Koriyama, JP;
Kenji Imakita, Chiyoda-ku, JP;
Yasuko Osaki, Chiyoda-ku, JP;
Hiroyuki Yamamoto, Koriyama, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
A lead-free glass for covering electrodes including, as represented by mass % based on the following oxides, from 30 to 50% of BO, from 21 to 25% of SiO, from 10 to 35% of ZnO, from 7 to 14% in total of KO and either one or both of LiO and NaO, from 0 to 10% of AlO, and from 0 to 10% of ZrO, wherein when it contains at least one component selected from the group consisting of MgO, CaO, SrO and BaO, the total of their contents is at most 5%, and when the molar fractions of LiO, NaO and KO are represented by l, n and k, respectively, l is at most 0.025, and l+n+k is from 0.07 to 0.17.