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:
Nov. 24, 2020
Filed:
Dec. 04, 2007
Tatsuhiro Sato, Fukushima, JP;
Nobumasa Yoshida, Fukushima, JP;
Katsuhide Orikasa, Fukushima, JP;
Makoto Tanaka, Fukushima, JP;
Tatsuhiro Sato, Fukushima, JP;
Nobumasa Yoshida, Fukushima, JP;
Katsuhide Orikasa, Fukushima, JP;
Makoto Tanaka, Fukushima, JP;
SHIN-ETSU QUARTZ PRODUCTS CO., LTD., Tokyo, JP;
Abstract
Provided is a method for producing a synthetic opaque quartz glass where flame processing can be performed in high purity with a simple way and even a large sized one can be produced, and the synthetic opaque quartz glass. A method for producing a synthetic opaque quartz glass which comprises the step of heating and burning a quartz glass porous body under a pressure of from 0.15 MPa to 1000 MPa at a temperature of from 1200 ° C. The quartz glass porous body is prepared by depositing quartz glass particles which are produced by hydrolyzing a silicon compound with an oxyhydrogen flame.