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:
Feb. 27, 2024
Filed:
Apr. 28, 2020
Applicant:
Agc Inc., Chiyoda-ku, JP;
Inventors:
Assignee:
AGC Inc., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/06 (2006.01); C03C 4/16 (2006.01); H01P 1/208 (2006.01); H01P 3/12 (2006.01); H04B 1/40 (2015.01);
U.S. Cl.
CPC ...
C03C 3/06 (2013.01); C03C 4/16 (2013.01); H01P 1/2088 (2013.01); H01P 3/121 (2013.01); C03C 2201/23 (2013.01); C03C 2204/00 (2013.01); H04B 1/40 (2013.01);
Abstract
A silica glass for a radio-frequency device has an OH group concentration being less than or equal to 300 wtppm; an FQ value being higher than or equal to 90,000 GHz at a frequency of higher than or equal to 25 GHz and lower than or equal to 30 GHz; and a slope being greater than or equal to 1,000 in a case where the FQ value is approximated as a linear function of the frequency in a frequency band of higher than or equal to 20 GHz and lower than or equal to 100 GHz.