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:
Oct. 20, 2026
Filed:
Mar. 28, 2024
Tdk Corporation, Tokyo, JP;
Hiroshi Take, Hong Kong, CN;
Kenji Nagase, Hong Kong, CN;
Anthony Reymund Melad Binarao, Hong Kong, CN;
Cheng Bu Heng, Hong Kong, CN;
TDK CORPORATION, Tokyo, JP;
Abstract
An optical device includes: a substrate; and at least two optical waveguides formed on the substrate and facing a multiplexed portion on the substrate in a light propagation direction, wherein in a cross section perpendicular to the light propagation direction, an angle formed between the substrate and a side surface of one optical waveguide, which faces the other optical waveguides, is set to α, and an angle formed between the substrate and a side surface of one optical waveguide, which does not face the other optical waveguides, is set to β, satisfying α<β, wherein α≤90°, and β≤90°. Therefore, light propagating through the at least two optical waveguides tends to propagate between the optical waveguides when approaching the multiplexed portion. As a result, the light transmission loss during multiplexing light can be reduced.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile