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:
May. 19, 2026
Filed:
Feb. 25, 2021
Applicant:
Ntt, Inc., Tokyo, JP;
Inventors:
Assignee:
NTT, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/12 (2006.01); G02B 6/13 (2006.01);
U.S. Cl.
CPC ...
G02B 6/131 (2013.01); G02B 2006/12061 (2013.01); G02B 2006/1208 (2013.01);
Abstract
An optical waveguide includes a cladding layer, a Si layer, a REO layer, and a cap layer. The REO layer is made of a single-crystal rare earth oxide, and is formed on the Si layer. The cap layer is formed on the REO layer. The cap layer may be made of a material transparent to light to be guided. The cap layer has a stripe shape extending in a direction in which light is guided.
Xu, Xuejun. (2026). Optical waveguide and method of manufacture thereof (U.S. Patent No. 12631822). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12631822
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile