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.

Date of Patent:
Feb. 16, 2016

Filed:

Feb. 28, 2014
Applicant:

Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;

Inventors:

Teruhiko Itou, Yokohama, JP;

Tomohiro Ishihara, Yokohama, JP;

Motonori Nakamura, Itami, JP;

Yuugo Kubo, Yokohama, JP;

Assignee:

SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka-shi, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/08 (2006.01); C03B 37/014 (2006.01);
U.S. Cl.
CPC ...
C03B 37/014 (2013.01);
Abstract

One embodiment provides a porous glass body which is obtained by depositing plural deposited layers of glass fine particles on a starting material in a layered manner by relatively reciprocating a burner for glass-fine-particle synthesis and the starting material. In the porous glass body, a porosity in a layer at the deposited layers falls within a range of 40% to 90%, and the porosity in the layer decreases from a central side toward an outer side in a radial direction thereof.


Find Patent Forward Citations

Itou, Teruhiko. (2016). Porous glass body and method for producing glass preform (U.S. Patent No. 9260338). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9260338

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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