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. 21, 2026
Filed:
Apr. 26, 2024
Applicant:
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Inventors:
Naoto Noda, Ibaraki, JP;
Dai Inoue, Ibaraki, JP;
Hitoshi Iinuma, Gunma, JP;
Hiromasa Mizukami, Ibaraki, JP;
Assignee:
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B 37/018 (2006.01);
U.S. Cl.
CPC ...
C03B 37/01815 (2013.01); C03B 2207/32 (2013.01); C03B 2207/34 (2013.01); C03B 2207/81 (2013.01); C03B 2207/87 (2013.01); C03B 2207/88 (2013.01);
Abstract
In a method of manufacturing porous glass base for optical fiber, a liquid organic siloxane raw material stored in a raw material tank of internal pressure Pis controlled by a mass flow controller at a predetermined flow rate and pumped through pipe of internal pressure Pto a vaporizer, the liquid raw material is vaporized in the vaporizer and supplied as a gas raw material to a burner, and the silica fine particles formed by burning the gas raw material in the burner are deposited to form a porous glass base material, where PPis satisfied.