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. 06, 2026
Filed:
Mar. 14, 2024
Seiko Epson Corporation, Tokyo, JP;
Yasuto Akatsuka, Chino, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A light-emitting device includes a stacked body that includes a tapered portion having a tapered shape having a width increasing from side of a first electrode toward side of a second electrode, a first low refractive index portion that is provided on a side surface of the tapered portion, a second low refractive index portion that is provided on side of the second electrode opposite to the stacked body, and a metal portion provided on a side surface of the second low refractive index portion, wherein the stacked body includes a first semiconductor layer, a second semiconductor layer, and a light-emitting layer, light generated in the light-emitting layer is emitted from the side of the second electrode, and a surface of the second low refractive index portion on side opposite to the second electrode is a lens surface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile