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:
Apr. 25, 2018
Agc Inc., Chiyoda-ku, JP;
Shigetoshi Mori, Chiyoda-ku, JP;
Motoshi Ono, Chiyoda-ku, JP;
Mamoru Isobe, Chiyoda-ku, JP;
Kohei Horiuchi, Chiyoda-ku, JP;
AGC Inc., Chiyoda-ku, JP;
Abstract
A glass substrate includes a plurality of through holes that penetrate from a first surface to a second surface of the glass substrate. Each through hole has an upper aperture with a first diameter on the first surface and a lower aperture with a second diameter on the second surface. For each of ten through holes selected from the plurality of through holes, a side wall length is obtained from the first and second diameters and the thickness of the glass substrate, and an R value is obtained by dividing the side wall length by the thickness of the glass substrate. The R values fall within a range of 1 to 1.1. A B value, obtained from dividing a difference between the greatest R value and the smallest R value by an average of the R values followed by multiplication with 100, is 5% or less.