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. 07, 2026
Filed:
Nov. 28, 2023
Applicant:
Agc Inc., Tokyo, JP;
Inventors:
Takeyuki Kato, Tokyo, JP;
Yutaka Kuroiwa, Tokyo, JP;
Nobuo Inuzuka, Shizuoka, JP;
Hirofumi Yamamoto, Shizuoka, JP;
Assignee:
AGC Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C 4/04 (2006.01); C03B 32/02 (2006.01); C03C 3/095 (2006.01); C03C 15/00 (2006.01); H05K 1/02 (2006.01); H05K 1/03 (2006.01);
U.S. Cl.
CPC ...
C03C 4/04 (2013.01); C03B 32/02 (2013.01); C03C 3/095 (2013.01); C03C 15/00 (2013.01); H05K 1/0237 (2013.01); H05K 1/0306 (2013.01); C03C 2204/00 (2013.01);
Abstract
The present invention relates to a photosensitive glass in which a LiSiOcrystal is precipitated by exposure and heat treatment, in which the photosensitive glass has a value of Formula (A) described below of 0.50 or more and 0.75 or less, and the photosensitive glass has a dielectric loss tangent at 20° C. and 10 GHz of 0.0090 or less, [LiO]/([LiO]+[NaO]+[KO]) Formula (A), in Formula (A), [LiO], [NaO], and [KO] respectively indicate contents of LiO, NaO, and KO in the photosensitive glass in terms of mole percentage based on oxides.