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. 27, 2021
Filed:
Feb. 26, 2020
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Yoshio Kikuchi, Nagoya, JP;
Hiroyuki Shibata, Okazaki, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/06 (2006.01); C03C 17/02 (2006.01); H01L 33/56 (2010.01); H01L 33/58 (2010.01); C03C 4/00 (2006.01);
U.S. Cl.
CPC ...
C03C 3/06 (2013.01); C03C 17/02 (2013.01); H01L 33/56 (2013.01); H01L 33/58 (2013.01); C03C 4/0071 (2013.01); C03C 4/0085 (2013.01); C03C 2201/32 (2013.01);
Abstract
The present invention relates to a transparent sealing member. A quartz glass transparent sealing member is used in an optical component having at least one optical element, and a mounting board on which the optical element is mounted, and constitutes, with the mounting board, a package that houses the optical element. The concentration of aluminum in a surface portion is higher than the concentration of aluminum in an inner portion.