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:
Jul. 08, 2025
Filed:
Dec. 23, 2021
Nichia Corporation, Anan, JP;
Yu Higuchi, Anan, JP;
Masafumi Kuramoto, Tokushima, JP;
NICHIA CORPORATION, Anan-shi, JP;
Abstract
A wavelength conversion member containing a fluorescent material having, for example, a perovskite-type structure maintained with high light emission intensity; a light emitting device; and a method for producing a wavelength conversion member. The wavelength conversion member includes a translucent member containing a resin, a wavelength conversion layer containing a fluorescent material having, for example, a perovskite-type structure, and a composition of ABX, and a first intermediate layer between the translucent member and the wavelength conversion layer. The method for producing a wavelength conversion member includes forming a first intermediate layer on a surface of a first translucent member containing a resin, and forming a first wavelength conversion layer containing a first fluorescent material having, for example, a perovskite-type structure on a surface of the first intermediate layer.