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. 10, 2026
Filed:
Nov. 24, 2022
Nichia Corporation, Anan, JP;
Masanori Okada, Yokohama, JP;
Hisashi Ogawa, Yokohama, JP;
NICHIA CORPORATION, Anan, JP;
Abstract
An optical circuit includes a resonator and an optical waveguide that includes a ridge formed upon substrate or a semiconductor layer. The resonator has a light circulating surface and is disposed such that part of the light circulating surface faces the upper surface of the ridge, across a first gap. The distance between part of the light circulating surface and the upper surface of the ridge facing the part of the light circulating surface is shorter than the distance that an evanescent wave protrudes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile